Short biceps femoris fascicles and eccentric knee flexor weakness increase the risk of hamstring injury in elite football (soccer): a prospective cohort study

Journal article

Timmins, Ryan G., Bourne, Matthew N., Shield, Anthony J., Williams, Morgan, Lorenzen, Christian and Opar, David. (2016). Short biceps femoris fascicles and eccentric knee flexor weakness increase the risk of hamstring injury in elite football (soccer): a prospective cohort study. British Journal of Sports Medicine. 50(24). https://doi.org/10.1136/bjsports-2015-095362
AuthorsTimmins, Ryan G., Bourne, Matthew N., Shield, Anthony J., Williams, Morgan, Lorenzen, Christian and Opar, David
Abstract

Background/Aim: To investigate the role of eccentric knee flexor strength, between-limb imbalance and biceps femoris long head (BFlh) fascicle length on the risk of a future hamstring strain injury (HSI).

Methods: Elite soccer players (n=152) from eight different teams participated. Eccentric knee flexor strength during the Nordic hamstring exercise and BFlh fascicle length were assessed at the beginning of pre-season. The occurrences of a HSI following this were recorded by the team medical staff. Relative risk (RR) was determined for univariate data, and logistic regression was employed for multivariate data.

Results: Twenty-seven new HSIs were reported. Eccentric knee flexor strength below 337N (RR = 4.4; 95% CI = 1.1 to 17.5) and BFlh fascicles shorter than 10.56cm (RR = 4.1; 95% CI=1.9 to 8.7) significantly increased the risk of a subsequent HSI. Multivariate logistic regression revealed significant effects when combinations of age, previous history of HSI, eccentric knee flexor strength and BFlh fascicle length were explored. From these analyses the likelihood of a future HSI in older athletes or those with a previous HSI history was reduced if high levels of eccentric knee flexor strength and longer BFlh fascicles were present.

Conclusions: The presence of short BFlh fascicles and low levels of eccentric strength in elite soccer players increase the risk of a future HSI. The greater risk of a future HSI in older players or those with a previous HSI is reduced when they possess longer BFlh fascicles and high levels of eccentric strength.

Keywordsfascicle length; Nordic hamstring exercise; prospective; muscle injury; epidemiology
Year2016
JournalBritish Journal of Sports Medicine
Journal citation50 (24)
ISSN0306-3674
Digital Object Identifier (DOI)https://doi.org/10.1136/bjsports-2015-095362
Scopus EID2-s2.0-84999041240
Open accessPublished as green open access
Research GroupSports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre
Author's accepted manuscript
License
File Access Level
Open
Publisher's version
License
All rights reserved
File Access Level
Controlled
Supplemental file
Supplemental file
Supplemental file
Supplemental file
Supplemental file
Permalink -

https://acuresearchbank.acu.edu.au/item/89079/short-biceps-femoris-fascicles-and-eccentric-knee-flexor-weakness-increase-the-risk-of-hamstring-injury-in-elite-football-soccer-a-prospective-cohort-study

Log in to edit

Download files

Author's accepted manuscript
AM_Timmins_2016_Short_biceps_femoris_fascicles_and_eccentric.pdf
License: CC BY-NC
File access level: Open
Supplemental file
0-AM_Timmins_2016_Biceps_femoris_long_head_architecture__ec.tif

1-AM_Timmins_2016_Biceps_femoris_long_head_architecture__ec.tif

2-AM_Timmins_2016_Biceps_femoris_long_head_architecture__ec.tif

3-AM_Timmins_2016_Biceps_femoris_long_head_architecture__ec.tif

4-AM_Timmins_2016_Biceps_femoris_long_head_architecture__ec.tif

Restricted files

Publisher's version

  • 304
    total views
  • 1278
    total downloads
  • 12
    views this month
  • 30
    downloads this month
These values are for the period from 19th October 2020, when this repository was created.

Export as

Related outputs

Hamstring Strain Injury Prevention : Current Beliefs and Practices of Practitioners Working in Major League Baseball
Lazarczuk, Stephanie L., Headrick, Jonathon, Hickey, Jack Thomas, Timmins, Ryan Gregory, Leva, Furey A. and Bourne, Matthew. (2024). Hamstring Strain Injury Prevention : Current Beliefs and Practices of Practitioners Working in Major League Baseball. Journal of Athletic Training. 59(7), pp. 696-704. https://doi.org/10.4085/1062-6050-0640.22
The Effect of Eccentric or Isometric Training on Strength, Architecture, and Sprinting across an Australian Football Season
Timmins, R. G., Filopoulos, D., Giannakis, J., Nguyen, V., Ruddy, J. D., Hickey, J. T., Maniar, N., Pollard, C. W., Morgan, N., Weakley, J. and Opar, D. A.. (2024). The Effect of Eccentric or Isometric Training on Strength, Architecture, and Sprinting across an Australian Football Season. Medicine and Science in Sports and Exercise. 56(3), pp. 564-574. https://doi.org/10.1249/MSS.0000000000003326
Biceps femoris long head muscle and aponeurosis geometry in males with and without a history of hamstring strain injury
Lazarczuk, Stephanie L., Collings, Tyler J., Hams, Andrea H., Timmins, Ryan Gregory, Opar, David, Edwards, Suzi, Shield, Anthony, Barrett, Rod and Bourne, Matthew. (2024). Biceps femoris long head muscle and aponeurosis geometry in males with and without a history of hamstring strain injury. Scandinavian Journal of Medicine and Science in Sports. 34(4), pp. 1-11. https://doi.org/10.1111/sms.14619
Vertical Jump Testing after Anterior Cruciate Ligament Reconstruction : A Systematic Review and Meta-analysis
Dutaillis, Benjamin, Diamond, Laura E., Lazarczuk, Stephanie L., Timmins, Ryan Gregory and Bourne, Matthew. (2024). Vertical Jump Testing after Anterior Cruciate Ligament Reconstruction : A Systematic Review and Meta-analysis. Medicine and Science in Sports and Exercise. 56(2), pp. 181-192. https://doi.org/10.1249/MSS.0000000000003298
Effects of 56-Kilogram Kettlebell Swing Endpoint on Total Body Mechanics
Ross, James, Keogh, Justin, Lorenzen, Hans Christian and Lake, Jason. (2023). Effects of 56-Kilogram Kettlebell Swing Endpoint on Total Body Mechanics. Journal of Strength and Conditioning Research. 37(12), pp. 2333-2338. https://doi.org/10.1519/JSC.0000000000004568
Validity of Inertial Measurement Units to Measure Lower-Limb Kinematics and Pelvic Orientation at Submaximal and Maximal Effort Running Speeds
Lin, Yi-Chung, Price, Kara, Carmichael, Declan, Maniar, Nirav, Hickey, Jack Thomas, Timmins, Ryan Gregory, Heiderscheit, Bryan C., Blemker, Silvia S. and Opar, David. (2023). Validity of Inertial Measurement Units to Measure Lower-Limb Kinematics and Pelvic Orientation at Submaximal and Maximal Effort Running Speeds. Sensors. 23(23), pp. 1-16. https://doi.org/10.3390/s23239599
Hamstring strain injury risk factors in Australian Football change over the course of the season
Sim, Aylwin, Timmins, Ryan G., Ruddy, Joshua D., Shen, Haifeng, Liao, Kewen, Maniar, Nirav, Hickey, Jack T., Williams, Morgan D. and Opar, David A.. (2023). Hamstring strain injury risk factors in Australian Football change over the course of the season. Medicine and Science in Sports and Exercise. https://doi.org/10.1249/MSS.0000000000003297
The effect of feedback on resistance training performance and adaptations : A systematic review and meta-analysis
Weakley, Jonathon, Cowley, Nicholas, Schoenfeld, Brad J., Read, Dale B., Timmins, Ryan G., García-Ramos, Amador and McGuckian, Thomas B.. (2023). The effect of feedback on resistance training performance and adaptations : A systematic review and meta-analysis. Sports Medicine. 53, pp. 1789-1803. https://doi.org/10.1007/s40279-023-01877-2
The acute demands of repeated-sprint training on physiological, neuromuscular, perceptual and performance outcomes in team sport athletes : A systematic review and meta-analysis
Thurlow, Fraser, Weakley, Jonathon, Townshend, Andrew D., Timmins, Ryan G., Morrison, Matthew and McLaren, Shaun J.. (2023). The acute demands of repeated-sprint training on physiological, neuromuscular, perceptual and performance outcomes in team sport athletes : A systematic review and meta-analysis. Sports Medicine. 53, pp. 1609-1640. https://doi.org/10.1007/s40279-023-01853-w
The effect of theta burst stimulation over the primary motor cortex on experimental hamstring pain : A randomized, controlled study
Moukhaiber, Nadia, Summers, Simon J., Opar, David, Imam, Jawwad, Thomson, Daniel, Chang, Wei-Ju, Andary, Toni and Cavaleri, Rocco. (2023). The effect of theta burst stimulation over the primary motor cortex on experimental hamstring pain : A randomized, controlled study. Journal of Pain. 24(4), pp. 593-604. https://doi.org/10.1016/j.jpain.2022.11.013
The dose–response of pain throughout a Nordic hamstring exercise intervention
Behan, Fearghal P., Opar, David A., Vermeulen, Robin, Timmins, Ryan G. and Whiteley, Rodney. (2023). The dose–response of pain throughout a Nordic hamstring exercise intervention. Scandinavian Journal of Medicine & Science in Sports. 33(4), pp. 542-546. https://doi.org/10.1111/sms.14317
Reliability of corticospinal excitability and intracortical inhibition in biceps femoris during different contraction modes
Presland, Joel D., Tofari, Paul J., Timmins, Ryan G., Kidgell, Dawson J. and Opar, David A.. (2023). Reliability of corticospinal excitability and intracortical inhibition in biceps femoris during different contraction modes. European Journal of Neuroscience. 57(1), pp. 91-105. https://doi.org/10.1111/ejn.15868
Incidence and prevalence of hamstring injuries in field-based team sports : A systematic review and meta-analysis of 5952 injuries from over 7 million exposure hours
Maniar, Nirav, Carmichael, Declan, Hickey, Jack Thomas, Timmins, Ryan Gregory, San Jose, Argell Joseph, Dickson, Jessica and Opar, David. (2023). Incidence and prevalence of hamstring injuries in field-based team sports : A systematic review and meta-analysis of 5952 injuries from over 7 million exposure hours. British Journal of Sports Medicine. 57(2), pp. 109-116. https://doi.org/10.1136/bjsports-2021-104936
Hamstring strain injury rehabilitation
Hickey, Jack Th., Opar, David A., Weiss, Leigh J. and Heiderscheit, Bryan C.. (2022). Hamstring strain injury rehabilitation. Journal of Athletic Training. 57(2), pp. 125-135. https://doi.org/10.4085/1062-6050-0707.20
Poor reporting of exercise interventions for hamstring strain injury rehabilitation : A scoping review of reporting quality and content in contemporary applied research
Breed, Ray, Opar, David, Timmins, Ryan, Maniar, Nirav, Banyard, Harry and Hickey, Jack. (2022). Poor reporting of exercise interventions for hamstring strain injury rehabilitation : A scoping review of reporting quality and content in contemporary applied research. Journal of Orthopaedic and Sports Physical Therapy. 52(3), pp. 130-141. https://doi.org/10.2519/jospt.2022.10641
Muscle force contributions to anterior cruciate ligament loading
Maniar, Nirav, Cole, Michael H., Bryant, Adam L. and Opar, David A.. (2022). Muscle force contributions to anterior cruciate ligament loading. Sports Medicine. 52(8), pp. 1737-1750. https://doi.org/10.1007/s40279-022-01674-3
Effect of an isometric or eccentric hip extension exercise intervention on hamstring strength, architecture, and morphology
Carmichael, Declan S., Hickey, Jack T., Tofari, Paul J., Bourne, Matthew N., Ward, Mark R. and Timmins, Ryan G.. (2022). Effect of an isometric or eccentric hip extension exercise intervention on hamstring strength, architecture, and morphology. Medicine and Science in Sports and Exercise. 54(12), pp. 2196-2207. https://doi.org/10.1249/MSS.0000000000003012
The development of a HAMstring InjuRy (HAMIR) index to mitigate injury risk through innovative imaging, biomechanics, and data analytics : Protocol for an observational cohort study
Heiderscheit, Bryan C., Blemker, Silvia S., Opar, David, Stiffler-Joachim, Mikel R., Bedi, Asheesh, Hart, Joseph, Mortensen, Brett, Kliethermes, Stephanie A., Baer, Geoffrey, Buckley, Craig, Costigan, Kyle, Drew, Shauna, Eberhardt, Duffy, Fabian, Kurrel, Feller, Herman, Hammer, Erin, Heidt, Danielle, Lee, Kenneth, Lund, Brian, ... Sund, Sarah. (2022). The development of a HAMstring InjuRy (HAMIR) index to mitigate injury risk through innovative imaging, biomechanics, and data analytics : Protocol for an observational cohort study. BMC Sports Science, Medicine and Rehabilitation. 14(1), p. Article 128. https://doi.org/10.1186/s13102-022-00520-3
Trends in Australian knee injury rates : An epidemiological analysis of 228,344 knee injuries over 20 years
Maniar, Nirav, Verhagen, Evert, Bryant, Adam Leigh and Opar, David Andrew. (2022). Trends in Australian knee injury rates : An epidemiological analysis of 228,344 knee injuries over 20 years. The Lancet Regional Health - Western Pacific. 21, p. Article 100409. https://doi.org/10.1016/j.lanwpc.2022.100409
The dose-response of the nordic hamstring exercise on biceps femoris architecture and eccentric knee flexor strength : A randomized interventional trial
Behan, Fearghal P., Vermeulen, Robin, Whiteley, Rod, Timmins, Ryan G., Ruddy, Joshua D. and Opar, David A.. (2022). The dose-response of the nordic hamstring exercise on biceps femoris architecture and eccentric knee flexor strength : A randomized interventional trial. International Journal of Sports Physiology and Performance. 17(4), pp. 646-654. https://doi.org/10.1123/ijspp.2021-0276
Assessing isometric kicking force and post-match responses using the Kicker test
Thomas, Rees J., Timmins, Ryan G., Tofari, Paul J., Williams, Morgan D. and Opar, David A.. (2022). Assessing isometric kicking force and post-match responses using the Kicker test. Journal of Sports Sciences. 40(11), pp. 1275-1281. https://doi.org/10.1080/02640414.2022.2065772
Early introduction of high-intensity eccentric loading into hamstring strain injury rehabilitation
Hickey, Jack T., Rio, Ebonie, Best, Thomas M., Timmins, Ryan G., Maniar, Nirav, Hickey, Peter F., Williams, Morgan D., Pitcher, Christian A. and Opar, David A.. (2022). Early introduction of high-intensity eccentric loading into hamstring strain injury rehabilitation. Journal of Science and Medicine in Sport. 25(9), pp. 732-736. https://doi.org/10.1016/j.jsams.2022.06.002
Strength and biomechanical risk factors for noncontact ACL injury in elite female footballers : A prospective study
Collings, Tyler J., Diamond, Laura E., Barrett, Rod S., Timmins, Ryan G., Hickey, Jack T., du Moulin, William S., Williams, Morgan D., Beerworth, Kate A. and Bourne, Matthew N.. (2022). Strength and biomechanical risk factors for noncontact ACL injury in elite female footballers : A prospective study. Medicine and Science in Sports and Exercise. 54(8), pp. 1242-1251. https://doi.org/10.1249/MSS.0000000000002908
Muscle function during single leg landing
Maniar, Nirav, Schache, Anthony G., Pizzolato, Claudio and Opar, David A.. (2022). Muscle function during single leg landing. Scientific Reports. 12(1), p. Article 11486. https://doi.org/10.1038/s41598-022-15024-w
Mechanical, material and morphological adaptations of healthy lower limb tendons to mechanical loading : A systematic review and meta-analysis
Lazarczuk, Stephanie L., Maniar, Nirav, Opar, David A., Duhig, Steven J., Shield, Anthony, Barrett, Rod S. and Bourne, Matthew N.. (2022). Mechanical, material and morphological adaptations of healthy lower limb tendons to mechanical loading : A systematic review and meta-analysis. Sports Medicine. 52(10), pp. 2405-2429. https://doi.org/10.1007/s40279-022-01695-y
Hamstring and gluteal activation during high-speed overground running : Impact of prior strain injury
Bourne, Matthew N., Pollard, Chris, Messer, Daniel, Timmins, Ryan G., Opar, David A., Williams, Morgan D. and Shield, Anthony J.. (2021). Hamstring and gluteal activation during high-speed overground running : Impact of prior strain injury. Journal of Sports Sciences. 39(18), pp. 2073-2079. https://doi.org/10.1080/02640414.2021.1917839
Anterior cruciate ligament reconstruction increases the risk of hamstring strain injury across football codes in Australia
Messer, Daniel J., Williams, Morgan, Bourne, Matthew, Opar, David, Timmins, Ryan Gregory and Shield, Anthony. (2021). Anterior cruciate ligament reconstruction increases the risk of hamstring strain injury across football codes in Australia. Sports Medicine. 52, pp. 923-932. https://doi.org/10.1007/s40279-021-01567-x
Screening hamstring injury risk factors multiple times in a season does not improve the identification of future injury risk
Opar, David A., Ruddy, Joshua D., Williams, Morgan D., Maniar, Nirav, Hickey, Jack T., Bourne, Matthew N., Pizzari, Tania and Timmins, Ryan G.. (2021). Screening hamstring injury risk factors multiple times in a season does not improve the identification of future injury risk. Medicine and Science in Sports and Exercise. 54(2), pp. 321-329. https://doi.org/10.1249/MSS.0000000000002782
Impact of prior anterior cruciate ligament, hamstring or groin injury on lower limb strength and jump kinetics in elite female footballers
Collings, Tyler J., Diamond, Laura E., Barrett, Rod S., Timmins, Ryan G., Hickey, Jack T., du Moulin, William S., Gonçalves, Basílio A. M., Cooper, Christopher and Bourne, Matthew N.. (2021). Impact of prior anterior cruciate ligament, hamstring or groin injury on lower limb strength and jump kinetics in elite female footballers. Physical Therapy in Sport. 52, pp. 297-304. https://doi.org/10.1016/j.ptsp.2021.10.009
Prediction of hamstring injuries in Australian Football using biceps femoris architectural risk factors derived from soccer
Lee Dow, Connor, Timmins, Ryan G., Ruddy, Joshua D., Williams, Morgan D., Maniar, Nirav, Hickey, Jack T., Bourne, Matthew N. and Opar, David A.. (2021). Prediction of hamstring injuries in Australian Football using biceps femoris architectural risk factors derived from soccer. American Journal of Sports Medicine. 49(13), pp. 3687-3695. https://doi.org/10.1177/03635465211041686
Muscle activity and activation in previously strain-injured lower limbs : A systematic review
Presland, J. D., Timmins, R. G., Maniar, N., Tofari, P. J., Kidgell, D. J., Shield, A. J., Dickson, J. and Opar, D.. (2021). Muscle activity and activation in previously strain-injured lower limbs : A systematic review. Sports Medicine. 51(11), pp. 2311-2327. https://doi.org/10.1007/s40279-021-01487-w
Is pre-season eccentric strength testing during the nordic hamstring exercise associated with future hamstring strain injury? A systematic review and meta-analysis
Opar, David A., Timmins, Ryan G., Behan, Fearghal P., Hickey, Jack T., van Dyk, Nicol, Price, Kara and Maniar, Nirav. (2021). Is pre-season eccentric strength testing during the nordic hamstring exercise associated with future hamstring strain injury? A systematic review and meta-analysis. Sports Medicine. 51(9), pp. 1935-1945. https://doi.org/10.1007/s40279-021-01474-1
Sprinting, strength, and architectural adaptations following hamstring training in Australian Footballers
Timmins, Ryan G., Filopoulos, Dean, Nguyen, Victor, Giannakis, Jake, Ruddy, Joshua D., Hickey, Jack T., Maniar, Nirav and Opar, David A.. (2021). Sprinting, strength, and architectural adaptations following hamstring training in Australian Footballers. Scandinavian Journal of Medicine & Science in Sports. 31(6), pp. 1276-1289. https://doi.org/10.1111/sms.13941
Skeletal muscle adaptive responses to different types of short-term exercise training and detraining in middle-age men
Callahan, Marcus J., Parr, Evelyn B., Snijders, Tim, Conceição, Miguel S., Radford, Bridget E., Timmins, Ryan G., Devlin, Brooke L., Hawley, John A. and Camera, Donny M.. (2021). Skeletal muscle adaptive responses to different types of short-term exercise training and detraining in middle-age men. Medicine and Science in Sports and Exercise. 53(10), pp. 2023-2036. https://doi.org/10.1249/MSS.0000000000002684
Lower limb muscle size after anterior cruciate ligament injury : A systematic review and meta-analysis
Dutaillis, Benjamin, Maniar, Nirav, Opar, David A., Hickey, Jack T. and Timmins, Ryan G.. (2021). Lower limb muscle size after anterior cruciate ligament injury : A systematic review and meta-analysis. Sports Medicine. 51(6), pp. 1209-1226. https://doi.org/10.1007/s40279-020-01419-0
Trunk, pelvis and lower limb coordination between anticipated and unanticipated sidestep cutting in females
Dutaillis, Benjamin, Opar, David A., Pataky, Todd, Timmins, Ryan G., Hickey, Jack T. and Maniar, Nirav. (2021). Trunk, pelvis and lower limb coordination between anticipated and unanticipated sidestep cutting in females. Gait & Posture. 85, pp. 131-137. https://doi.org/10.1016/j.gaitpost.2020.12.011
Eccentric hamstring strength is associated with age and duration of previous season hamstring injury in male soccer players
Vicens-Bordas, Jordi, Esteve, Ernest, Fort-Vanmeerhaeghe, Azahara, Clausen, Mikkel Bek, Bandholm, Thomas, Opar, David, Shield, Anthony and Thorborg, Kristian. (2020). Eccentric hamstring strength is associated with age and duration of previous season hamstring injury in male soccer players. International Journal of Sports Physical Therapy. 15(2), pp. 246-253. https://doi.org/10.26603/ijspt20200246
Anatomy of the hamstrings
Timmins, Ryan, Woodley, Stephanie, Shield, Anthony and Opar, David. (2020). Anatomy of the hamstrings. In In Thorborg , Kristian, Opar, David and Shield, Anthony (Ed.). Prevention and rehabilitation of hamstring injuries pp. 1-30 Springer Nature Switzerland AG. https://doi.org/10.1007/978-3-030-31638-9_1
Hamstring injury prevention and implementation
van der Horst, Nick, Thorborg, Kristian and Opar, David. (2020). Hamstring injury prevention and implementation. In In Thorborg, Kristian, Opar, David and Shield, Anthony (Ed.). Prevention and rehabilitation of hamstring injuries pp. 145-163 Springer Nature Switzerland AG. https://doi.org/10.1007/978-3-030-31638-9_6
Hamstrings biomechanics related to running
Maniar, Nirav, Schache, Anthony, Heiderscheit, Bryan and Opar, David. (2020). Hamstrings biomechanics related to running. In In Thorborg, Kristian, Opar, David and Shield, Anthony (Ed.). Prevention and rehabilitation of hamstring injuries pp. 65-81 Springer Nature Switzerland AG. https://doi.org/10.1007/978-3-030-31638-9_3
Pain-free versus pain-threshold rehabilitation following acute hamstring strain injury : A randomized controlled trial
Hickey, Jack T., Timmins, Ryan G., Maniar, Nirav, Rio, Ebonie, Hickey, Peter F., Pitcher, Christian A., Williams, Morgan D. and Opar, David A.. (2020). Pain-free versus pain-threshold rehabilitation following acute hamstring strain injury : A randomized controlled trial. Journal of Orthopaedic and Sports Physical Therapy. 50(2), pp. 91-103. https://doi.org/10.2519/jospt.2020.8895
Performance changes during the off-season period in football players–Effects of age and previous hamstring injury
Vicens-Bordas, Jordi, Esteve, Ernest, Fort-Vanmeerhaeghe, Azahara, Casals, Martí, Bandholm, Thomas, Ishøi, Lasse, Opar, David, Shield, Anthony and Thorborg, Kristian. (2020). Performance changes during the off-season period in football players–Effects of age and previous hamstring injury. Journal of Sports Sciences. 38(21), pp. 2489-2499. https://doi.org/10.1080/02640414.2020.1792160
Muscle contributions to tibiofemoral shear forces and valgus and rotational joint moments during single leg drop landing
Maniar, Nirav, Schache, Anthony G., Pizzolato, Claudio and Opar, David A.. (2020). Muscle contributions to tibiofemoral shear forces and valgus and rotational joint moments during single leg drop landing. Scandinavian Journal of Medicine & Science in Sports. 30(9), pp. 1664-1674. https://doi.org/10.1111/sms.13711
Muscle contributions to medial and lateral tibiofemoral compressive loads during sidestep cutting
Maniar, Nirav, Bryant, Adam L., Sritharan, Prasanna, Schache, Anthony G. and Opar, David A.. (2020). Muscle contributions to medial and lateral tibiofemoral compressive loads during sidestep cutting. Journal of Biomechanics. 101, p. 109641. https://doi.org/10.1016/j.jbiomech.2020.109641
Match high-speed running distances are often suppressed after return from hamstring strain injury in professional footballers
Whiteley, Rodney, Massey, Andrew, Gabbett, Tim, Blanch, Peter, Cameron, Matthew, Conlan, Greta, Ford, Matthew and Williams, Morgan. (2020). Match high-speed running distances are often suppressed after return from hamstring strain injury in professional footballers. Sports Health. 13(3), pp. 290-295. https://doi.org/10.1177/1941738120964456
Preseason hip/groin strength and HAGOS scores are associated with subsequent injury in professional male soccer players
Bourne, Matthew N., Williams, Morgan, Jackson, Jeremy, Williams, Kate L., Timmins, Ryan G. and Pizzari, Tania. (2020). Preseason hip/groin strength and HAGOS scores are associated with subsequent injury in professional male soccer players. Journal of Orthopaedic and Sports Physical Therapy. 50(5), pp. 234-242. https://doi.org/10.2519/jospt.2020.9022
Hamstring strength and architectural adaptations following inertial flywheel resistance training
Presland, Joel D., Opar, David A., Williams, Morgan D., Hickey, Jack T., Maniar, Nirav, Lee Dow, Connor, Bourne, Matthew N. and Timmins, Ryan G.. (2020). Hamstring strength and architectural adaptations following inertial flywheel resistance training. Journal of Science and Medicine in Sport. 23(11), pp. 1093-1099. https://doi.org/10.1016/j.jsams.2020.04.007
Determinants of hamstring fascicle length in professional rugby league athletes
McGrath, Timothy M., Hulin, Billy T., Pickworth, Nathan, Clarke, Alex and Timmins, Ryan G.. (2020). Determinants of hamstring fascicle length in professional rugby league athletes. Journal of Science and Medicine in Sport. 23(5), pp. 524-528. https://doi.org/10.1016/j.jsams.2019.12.006
Factors that impact self-reported wellness scores in elite Australian Footballers
Ruddy, Joshua D., Cormack, Stuart, Timmins, Ryan G., Sakadjian, Alex, Pietsch, Samuel, Carey, David L., Williams, Morgan D. and Opar, David A.. (2020). Factors that impact self-reported wellness scores in elite Australian Footballers. Medicine & Science in Sports & Exercise. 52(6), pp. 1427-1435. https://doi.org/10.1249/MSS.0000000000002244
Differences in lower limb strength and structure after 12 weeks of resistance, endurance, and concurrent training
Timmins, Ryan G., Shamim, Baubak, Tofari, Paul J., Hickey, Jack T. and Camera, Donny M.. (2020). Differences in lower limb strength and structure after 12 weeks of resistance, endurance, and concurrent training. International Journal of Sports Physiology and Performance. 15(9), pp. 1223-1230. https://doi.org/10.1123/IJSPP.2019-0788
The relationship of family characteristics, parental beliefs and parenting behaviours with the fundamental movement proficiency of primary school children in South East Wales
Jarvis, Stuart, Williams, Morgan, Rainer, Paul, Saunders, John and Mullen, Richard. (2020). The relationship of family characteristics, parental beliefs and parenting behaviours with the fundamental movement proficiency of primary school children in South East Wales. European Physical Education Review. 26(4), pp. 970-986. https://doi.org/10.1177/1356336X20915225
Hamstring myoelectrical activity during three different kettlebell swing exercises
Del Monte, Michael J., Opar, David, Timmins, Ryan G., Ross, James A., Keogh, Justin W. L. and Lorenzen, Christian. (2020). Hamstring myoelectrical activity during three different kettlebell swing exercises. Journal of Strength and Conditioning Research. 34(7), pp. 1953-1958. https://doi.org/10.1519/JSC.0000000000002254
The continuums of impairment in vascular reactivity across the spectrum of cardiometabolic health : A systematic review and network meta-analysis
Loader, Jordan, Khouri, Charles, Taylor, Frances, Stewart, Simon, Lorenzen, Christian, Cracowski, Jean-Luc, Walther, Guillaume and Roustit, Matthieu. (2019). The continuums of impairment in vascular reactivity across the spectrum of cardiometabolic health : A systematic review and network meta-analysis. Obesity Reviews. 20(6), pp. 906-920. https://doi.org/10.1111/obr.12831
Systematically searching and reviewing the literature
Maniar, Nirav, Duncan, Kathryn and Opar, David. (2019). Systematically searching and reviewing the literature. In In Bird, Stephen R. (Ed.). Research methods in physical activity and health pp. 28-44 Routledge. https://doi.org/10.4324/9781315158501-5
Modeling the risk of team sport injuries : A narrative review of different statistical approaches
Ruddy, Joshua D., Cormack, Stuart J., Whiteley, Rod, Williams, Morgan D., Timmins, Ryan G. and Opar, David A.. (2019). Modeling the risk of team sport injuries : A narrative review of different statistical approaches. Frontiers in Physiology. 10, p. Article 829.
Infographic. The effect of high-speed running on hamstring strain injury risk
Duhig, Steven John, Shield, Anthony J., Opar, David, Gabbett, Tim J., Ferguson, Cameron and Williams, Morgan. (2019). Infographic. The effect of high-speed running on hamstring strain injury risk. British Journal of Sports Medicine. 53(16), pp. 1034-1035. https://doi.org/10.1136/bjsports-2018-099358
Session availability as a result of prior injury impacts the risk of subsequent non-contact lower limb injury in elite male australian footballers
Ruddy, Joshua D., Pietsch, Samuel, Maniar, Nirav, Cormack, Stuart J., Timmins, Ryan G., Williams, Morgan D., Carey, David L. and Opar, David A.. (2019). Session availability as a result of prior injury impacts the risk of subsequent non-contact lower limb injury in elite male australian footballers. Frontiers in Physiology. 10, p. 737. https://doi.org/10.3389/fphys.2019.00737
A novel device to assess hip strength : Concurrent validity and normative values in male athletes
O'Brien, Michael, Bourne, Matthew, Heerey, Joshua, Timmins, Ryan G. and Pizzari, Tania. (2019). A novel device to assess hip strength : Concurrent validity and normative values in male athletes. Physical Therapy in Sport. 35, pp. 63-68. https://doi.org/10.1016/j.ptsp.2018.11.006
Effect of concentric and eccentric hamstring training on sprint recovery, strength and muscle architecture in inexperienced athletes
Duhig, Steven J., Bourne, Matthew N., Buhmann, Robert L., Williams, Morgan, Minett, Geoffrey M., Roberts, Llion A., Timmins, Ryan Gregory, Sims, Casey and Shield, Anthony J.. (2019). Effect of concentric and eccentric hamstring training on sprint recovery, strength and muscle architecture in inexperienced athletes. Journal of Science and Medicine in Sport. 22(7), pp. 769 - 774. https://doi.org/10.1016/j.jsams.2019.01.010
Hamstring muscle activation and morphology are significantly altered 1-6 years after anterior cruciate ligament reconstruction with semitendinosus graft
Messer, Daniel J., Shield, Anthony J., Williams, Morgan D., Timmins, Ryan Gregory and Bourne, Matthew N.. (2019). Hamstring muscle activation and morphology are significantly altered 1-6 years after anterior cruciate ligament reconstruction with semitendinosus graft. Knee Surgery, Sports Traumatology, Arthroscopy. 27. https://doi.org/10.1007/s00167-019-05374-w
Razor hamstring curl and Nordic hamstring exercise architectural adaptations : Impact of exercise selection and intensity
Pollard, Christopher W., Opar, David A., Williams, Morgan D., Bourne, Matthew N. and Timmins, Ryan Gregory. (2019). Razor hamstring curl and Nordic hamstring exercise architectural adaptations : Impact of exercise selection and intensity. Scandinavian Journal of Medicine & Science in Sports. 29(5), pp. 706-715. https://doi.org/10.1111/sms.13381
Lower-limb muscle function during sidestep cutting
Maniar, Nirav, Schache, Anthony G., Cole, Michael H. and Opar, David. (2019). Lower-limb muscle function during sidestep cutting. Journal of Biomechanics. 82, pp. 186 - 192. https://doi.org/10.1016/j.jbiomech.2018.10.021
Effect of acute augmented feedback on between limb asymmetries and eccentric knee flexor strength during the Nordic hamstring exercise
Wade J. Chalker, Anthony J. Shield, David Opar, Evelyne N. Rathbone and Justin Keogh. (2018). Effect of acute augmented feedback on between limb asymmetries and eccentric knee flexor strength during the Nordic hamstring exercise. PeerJ. (e4972). https://doi.org/10.7717/peerj.4972
The Cape Town declaration on access to cardiac surgery in the developing world
Zilla, Peter, Bolman, R. Morton, Yacoub, Magdi H., Beyersdorf, Friedhelm, Sliwa, Karen, Zühlke, Liesl, Higgins, Robert S. D., Mayosi, Bongani, Carpentier, Alain and Williams, David. (2018). The Cape Town declaration on access to cardiac surgery in the developing world. Cardiovascular Journal of Africa. 29(4), pp. 256 - 259. https://doi.org/10.5830/CVJA-2018-046
Non-knee-spanning muscles contribute to tibiofemoral shear as well as valgus and rotational joint reaction moments during unanticipated sidestep cutting
Maniar, Nirav, Schache, Anthony, Sritharan, Prasanna and Opar, David. (2018). Non-knee-spanning muscles contribute to tibiofemoral shear as well as valgus and rotational joint reaction moments during unanticipated sidestep cutting. Scientific Reports. 8(1), pp. 1 - 10. https://doi.org/10.1038/s41598-017-19098-9
Interpreting measures of fundamental movement skills and their relationship with health-related physical activity and self-concept
Jarvis, Stuart, Williams, Morgan, Rainer, Paul, Jones, Eleri Sian, Saunders, John and Mullen, Richard. (2018). Interpreting measures of fundamental movement skills and their relationship with health-related physical activity and self-concept. Measurement in Physical Education and Exercise Science. 22(1), pp. 88 - 100. https://doi.org/10.1080/1091367X.2017.1391816
An evidence-based framework for strengthening exercises to prevent hamstring injury
Bourne, Matthew N., Timmins, Ryan Gregory, Opar, David, Pizzari, Tania, Ruddy, Joshua D., Sims, Casey, Williams, Morgan D. and Shield, Anthony J.. (2018). An evidence-based framework for strengthening exercises to prevent hamstring injury. Sports Medicine. 48(2), pp. 251 - 267. https://doi.org/10.1007/s40279-017-0796-x
The effect of Nordic hamstring exercise training volume on biceps femoris long head architectural adaptation
Presland, J. D., Timmins, R. G., Bourne, M. N., Williams, M. D. and Opar, D. A.. (2018). The effect of Nordic hamstring exercise training volume on biceps femoris long head architectural adaptation. Scandinavian Journal of Medicine & Science in Sports. 28(7), pp. 1775-1783. https://doi.org/10.1111/sms.13085
The Cape Town declaration on access to cardiac surgery in the developing world
Zilla, Peter, Bolman, R. Morton, Yacoub, Magdi H., Beyersdorf, Friedhelm, Sliwa-Hahnle, Karen, Zuhlke, Liesl Joanna, Higgins, Robert S.D., Mayosi, Bongani, Carpentier, Alain and Williams, David. (2018). The Cape Town declaration on access to cardiac surgery in the developing world. European Journal of Cardio-Thoracic Surgery. 54(3), pp. 407 - 410. https://doi.org/10.1093/ejcts/ezy272
Transient endothelial dysfunction induced by sugar-sweetened beverage consumption may be attenuated by a single bout of aerobic exercise
Varsamis, Pia, Walr, Guillaume, Share, Bianca, Taylor, Frances, Stewart, Simon, Lorenzen, Christian and Loader, Jordan. (2018). Transient endothelial dysfunction induced by sugar-sweetened beverage consumption may be attenuated by a single bout of aerobic exercise. Microvascular Research. 115, pp. 8 - 11. https://doi.org/10.1016/j.mvr.2017.07.003
The Cape Town declaration on access to cardiac surgery in the developing world
Zilla, Peter, Bolman, R M., Yacoub, Magdi H., Beyersdorf, Friedhelm, Sliwa-Hahnle, Karen, Zuhlke, Liesl J., Higgins, Robert, Mayosi, Bongani, Carpentier, Alain and Williams, David. (2018). The Cape Town declaration on access to cardiac surgery in the developing world. SAMJ South African Medical Journal. 108(9), pp. 702 - 704. https://doi.org/10.7196/SAMJ.2018.v108i9.13102
The Cape Town declaration on access to cardiac surgery in the developing world
Zilla, Peter, Bolman, R. Morton, Yacoub, Magdi H., Beyersdorf, Friedhelm, Sliwa, Karen, Zühlke, Liesl, Higgins, Robert S. D., Mayosi, Bongani, Carpentier, Alain and Williams, David. (2018). The Cape Town declaration on access to cardiac surgery in the developing world. The Annals of Thoracic Surgery. 106(3), pp. 930 - 933. https://doi.org/10.1016/j.athoracsur.2018.05.020
Infographic. Impact of the Nordic hamstring and hip extension exercises on hamstring architecture and morphology: Implications for injury prevention
Bourne, Matthew N., Pope, David, Duhig, Steven J., Timmins, Ryan G., Williams, Morgan D., Al Najjar, Aiman, Kerr, Graham K. and Shield, Anthony J.. (2018). Infographic. Impact of the Nordic hamstring and hip extension exercises on hamstring architecture and morphology: Implications for injury prevention. British Journal of Sports Medicine. 52(23), pp. 1490 - 1491. https://doi.org/10.1136/bjsports-2017-098730
A novel apparatus to measure knee flexor strength during various hamstring exercises: A reliability and retrospective injury study
Hickey, Jack T., Hickey, Peter F., Maniar, Nirav, Timmins, Ryan G., Williams, Morgan D., Pitcher, Christian A. and Opar, David A.. (2018). A novel apparatus to measure knee flexor strength during various hamstring exercises: A reliability and retrospective injury study. Journal of Orthopaedic and Sports Physical Therapy. 48(2), pp. 72 - 80. https://doi.org/10.2519/jospt.2018.7634
Adaptations to concurrent training in combination with high protein availability: A comparative trial in healthy, recreationally active men
Shamim, Baubak, Devlin, Brooke L., Timmins, Ryan G., Tofari, Paul, Dow, Connor Lee, Coffey, Vernon G., Hawley, John A. and Camera, Donny M.. (2018). Adaptations to concurrent training in combination with high protein availability: A comparative trial in healthy, recreationally active men. Sports Medicine. 48(12), pp. 2869 - 2883. https://doi.org/10.1007/s40279-018-0999-9
Non-knee-spanning muscles contribute to tibiofemoral shear as well as valgus and rotational joint reaction moments during unanticipated sidestep cutting
Maniar, Nirav, Schache, Anthony G., Sritharan, Prasanna and Opar, David. (2018). Non-knee-spanning muscles contribute to tibiofemoral shear as well as valgus and rotational joint reaction moments during unanticipated sidestep cutting. Scientific Reports. 8(2501), pp. 1 - 10. https://doi.org/10.1038/s41598-017-19098-9
External kinetics of the kettlebell snatch in amateur lifters
Ross, James A., Keogh, Justin W. L., Wilson, Cameron J. and Lorenzen, Christian. (2017). External kinetics of the kettlebell snatch in amateur lifters. PeerJ. 5, p. e3111. https://doi.org/10.7717/peerj.3111
Impact of exercise selection on hamstring muscle activation
Bourne, Matthew N., Williams, Morgan, Opar, David, Najjar, Aiman Al, Kerr, Graham K. and Shield, Anthony J.. (2017). Impact of exercise selection on hamstring muscle activation. British Journal of Sports Medicine. 51, pp. 1021 - 1028. https://doi.org/10.1136/bjsports-2015-095739
Assessing cutaneous microvascular function with iontophoresis: avoiding non-specific vasodilation
Loader, Jordan, Roustit, Matthieu, Taylor, Frances, MacIsaac, Richard, Stewart, Simon, Lorenzen, Christian and Walther, Guillaume. (2017). Assessing cutaneous microvascular function with iontophoresis: avoiding non-specific vasodilation. Microvascular Research. 113, pp. 29 - 39. https://doi.org/10.1016/j.mvr.2017.04.006
Impact of the Nordic hamstring and hip extension exercises on hamstring architecture and morphology: Implications for injury prevention
Bourne, Matthew N., Duhig, Steven J., Timmins, Ryan, Williams, Morgan, Opar, David, Najjar, Aiman Al, Kerr, Graham K. and Shield, Anthony J.. (2017). Impact of the Nordic hamstring and hip extension exercises on hamstring architecture and morphology: Implications for injury prevention. British Journal of Sports Medicine. 51(5), pp. 469 - 477. https://doi.org/10.1136/bjsports-2016-096130
Biceps femoris architecture : The association with injury and response to training
Timmins, Ryan. (2017). Biceps femoris architecture : The association with injury and response to training. British Journal of Sports Medicine. 51(6), pp. 547-548. https://doi.org/10.1136/bjsports-2016-097044
Effects of sugar-sweetened beverage consumption on microvascular and macrovascular function in a healthy population
Loader, Jordan, Meziat, Cindy, Watts, Rani, Lorenzen, Christian, Sigaudo-Roussel, Dominique, Stewart, Simon, Reboul, Cyril, Meyer, G. and Walther, Guillaume. (2017). Effects of sugar-sweetened beverage consumption on microvascular and macrovascular function in a healthy population. Arteriosclerosis Thrombosis and Vascular Biology. 37(6), pp. 1250 - 1260. https://doi.org/10.1161/ATVBAHA.116.308010
There is strength in numbers for muscle injuries it is time to establish an international collaborative registry
Van Dyke, Nicol, Van der Made, Anne D., Timmins, Ryan, Opar, David and Tol, Johannes L.. (2017). There is strength in numbers for muscle injuries it is time to establish an international collaborative registry. British Journal of Sports Medicine. https://doi.org/10.1136/bjsports-2016-097318
Effect of prior injury on changes to biceps femoris architecture across an Australian football league season
Timmins, Ryan, Bourne, Matthew N., Hickey, Jack, Maniar, Nirav, Tofari, Paul, Williams, Morgan and Opar, David. (2017). Effect of prior injury on changes to biceps femoris architecture across an Australian football league season. Medicine and Science in Sports and Exercise. 49(10), pp. 2102 - 2109. https://doi.org/10.1249/MSS.0000000000001333
Criteria for progressing rehabilitation and determining return to play clearance following hamstring strain injury: A systematic review
Hickey, Jack, Timmins, Ryan G., Maniar, Nirav, Williams, Morgan and Opar, David. (2017). Criteria for progressing rehabilitation and determining return to play clearance following hamstring strain injury: A systematic review. Sports Medicine. 47(7). https://doi.org/10.1007/s40279-016-0667-x
Predictive modeling of hamstring strain injuries in elite Australian footballers
Ruddy, Joshua, Shield, Anthony J., Maniar, Nirav, Williams, Morgan D., Duhig, Steven J., Timmins, Ryan, Hickey, Jack, Bourne, Matthew N. and Opar, David. (2017). Predictive modeling of hamstring strain injuries in elite Australian footballers. Medicine and Science in Sports and Exercise. 50(5), pp. 1 - 30. https://doi.org/10.1249/MSS.0000000000001527
Running exposure is associated with the risk of hamstring strain injury in elite Australian footballers
Ruddy, Joshua D., Pollard, Christopher, Timmins, Ryan, Williams, Morgan, Shield, Anthony and Opar, David. (2017). Running exposure is associated with the risk of hamstring strain injury in elite Australian footballers. British Journal of Sports Medicine. https://doi.org/10.1136/bjsports-2016-096777
Drop punt kicking induces eccentric knee flexor weakness associated with reductions in hamstring electromyographic activity
Duhig, Steven J., Williams, Morgan, Minett, Geoffrey M., Opar, David and Shield, Anthony J.. (2017). Drop punt kicking induces eccentric knee flexor weakness associated with reductions in hamstring electromyographic activity. Journal of Science and Medicine in Sport. 20(6), pp. 595 - 599. https://doi.org/10.1016/j.jsams.2016.09.006
Muscle activation patterns in the Nordic hamstring exercise: Impact of prior strain injury
Bourne, Matthew N., Opar, David, Williams, Morgan, Najjar, Aiman Al and Shield, Anthony J.. (2016). Muscle activation patterns in the Nordic hamstring exercise: Impact of prior strain injury. Scandinavian Journal of Medicine & Science in Sports. 26(6). https://doi.org/10.1111/sms.12494
Biceps femoris architecture and strength in athletes with a prior ACL reconstruction
Timmins, Ryan G., Bourne, Matthew N., Shield, Anthony J., Williams, Morgan, Lorenzen, Christian and Opar, David A.. (2016). Biceps femoris architecture and strength in athletes with a prior ACL reconstruction. Medicine and Science in Sports and Exercise. 48(3), pp. 337-345. https://doi.org/10.1249/MSS.0000000000000783
Hamstring strength and flexibility after hamstring strain injury: A systematic review and meta-analysis
Maniar, Nirav, Shielf, Anthony J., Williams, Morgan D., Timmins, Ryan G. and Opar, David A.. (2016). Hamstring strength and flexibility after hamstring strain injury: A systematic review and meta-analysis. British Journal of Sports Medicine. 50(15), pp. 909-920. https://doi.org/10.1136/bjsports-2015-095311
Is there evidence to support the use of the angle of peak torque as a marker of hamstring injury and re-injury risk?
Timmins, Ryan G., Shield, Anthony J., Williams, Morgan D. and Opar, David A.. (2016). Is there evidence to support the use of the angle of peak torque as a marker of hamstring injury and re-injury risk? Sports Medicine. 46(1), pp. 7-13. https://doi.org/10.1007/s40279-015-0378-8
Effect of high-speed running on hamstring strain injury risk
Duhig, Steven, Shield, Anthony, Opar, David, Gabbett, Tim, Ferguson, Cameron and Williams, Morgan. (2016). Effect of high-speed running on hamstring strain injury risk. British Journal of Sports Medicine. 50(24). https://doi.org/10.1136/bjsports-2015-095679
Architectural changes of the biceps femoris long head after concentric or eccentric training
Timmins, Ryan G., Ruddy, Joshua D., Presland, Joel, Maniar, Nirav and Williams, Morgan. (2016). Architectural changes of the biceps femoris long head after concentric or eccentric training. Medicine and Science in Sports and Exercise. 48(3), pp. 499-508. https://doi.org/10.1249/MSS.0000000000000795
Reliability of measures of quadriceps muscle function using magnetic stimulation
Tofari, Paul J., Opar, David, Kemp, Justin Guy, Billaut, Francois and Cormack, Stuart John. (2016). Reliability of measures of quadriceps muscle function using magnetic stimulation. Muscle & Nerve. https://doi.org/10.1002/mus.24926
Architectural adaptations of muscle to training and injury: A narrative review outlining the contributions by fascicle length, pennation angle and muscle thickness
Timmins, Ryan G., Shield, Anthony J., Williams, Morgan D., Lorenzen, Christian and Opar, David. (2016). Architectural adaptations of muscle to training and injury: A narrative review outlining the contributions by fascicle length, pennation angle and muscle thickness. British Journal of Sports Medicine. 50(23). https://doi.org/10.1136/bjsports-2015-094881
Comparisons of eccentric knee flexor strength and asymmetries across elite, sub-elite and school level cricket players
Chalker, Wade J., Shield, Anthony J., Opar, David and Keogh, Justin W. L.. (2016). Comparisons of eccentric knee flexor strength and asymmetries across elite, sub-elite and school level cricket players. PeerJ. 4, pp. 1 - 10. https://doi.org/10.7717/peerj.1594
What do submarines have in common with diabetes?
Rio, Ebony, Timmins, Ryan Gregory and Opar, David. (2016). What do submarines have in common with diabetes? British Journal of Sports Medicine. 50(16), pp. 955 - 956. https://doi.org/10.1136/bjsports-2016-096646
The juxtaposition of science and medicine in sport. Can we all play together nicely?
Opar, David and Rio, Ebony. (2015). The juxtaposition of science and medicine in sport. Can we all play together nicely? British Journal of Sports Medicine. 49(10), pp. 640 - 641. https://doi.org/10.1136/bjsports-2015-094819
Snatch Trajectory of Elite Level Girevoy (Kettlebell) Sport Athletes and its Implications to Strength and Conditioning Coaching
Ross, James A., Wilson, Cameron J., Keogh, Justin W. L., Ho, Kuok Wai and Lorenzen, Christian. (2015). Snatch Trajectory of Elite Level Girevoy (Kettlebell) Sport Athletes and its Implications to Strength and Conditioning Coaching. International Journal of Sports Science and Coaching. 10(2+3), pp. 439 - 452. https://doi.org/10.1260/1747-9541.10.2-3.439
Eccentric knee flexor strength and risk of hamstring injuries in Rugby Union: A prospective study
Bourne, Matthew, Opar, David, Williams, Morgan and Shield, Anthony. (2015). Eccentric knee flexor strength and risk of hamstring injuries in Rugby Union: A prospective study. American Journal of Sports Medicine. 43(11), pp. 2663 - 2670. https://doi.org/10.1177/0363546515599633
Acute injuries in track and field athletes : A 3-year observational study at the penn relays carnival with epidemiology and medical coverage implications
Opar, David, Drezner, Jonathan, Shield, Anthony, Williams, Morgan, Webner, David, Sennett, Brian, Kapur, Rahul, Cohen, Marc, Ulager, James, Cafengiu, Ana and Cronholm, Peter F. (2015). Acute injuries in track and field athletes : A 3-year observational study at the penn relays carnival with epidemiology and medical coverage implications. American Journal of Sports Medicine. 43(4), pp. 816 - 822. https://doi.org/10.1177/0363546514562553
Comparison of anthropometry, upper body strength and lower body power characteristics in different levels of Australian Football players
Bilsborough, Johann, Greenway, Kate, Opar, David, Livingstone, Steuart, Cordy, Justin, Bird, S. and Coutts, Aaron. (2015). Comparison of anthropometry, upper body strength and lower body power characteristics in different levels of Australian Football players. Journal of Strength and Conditioning Research. 29(3), pp. 826 - 834. https://doi.org/10.1519/JSC.0000000000000682
Eccentric hamstring strength and hamstring injury risk in Australian footballers
Opar, David A., Williams, Morgan D., Timmins, Ryan G., Duhig, Steven and Shield, Anthony J.. (2015). Eccentric hamstring strength and hamstring injury risk in Australian footballers. Medicine and Science in Sports and Exercise. 47(4). https://doi.org/10.1249/MSS.0000000000000465
The effect of previous hamstring strain injury on the change in eccentric hamstring strength during preseason training in elite Australian footballers
Opar, David A., Williams, Morgan D., Timmins, Ryan G., Hickey, Jack, Duhig, Steven J. and Shield, Anthony J.. (2015). The effect of previous hamstring strain injury on the change in eccentric hamstring strength during preseason training in elite Australian footballers. American Journal of Sports Medicine. 43(2), pp. 377-384. https://doi.org/10.1177/0363546514556638
Biceps femoris long head architecture: A reliability and retrospective injury study
Timmins, Ryan Gregory, Shield, Anthony, Williams, Morgan, Lorenzen, Christian and Opar, David. (2015). Biceps femoris long head architecture: A reliability and retrospective injury study. Medicine and Science in Sports and Exercise. 47(5), pp. 905 - 913. https://doi.org/10.1249/MSS.0000000000000507
Biceps femoris long head architecture: The association with hamstring injury and response to training
Timmins, Ryan Gregory. (2015). Biceps femoris long head architecture: The association with hamstring injury and response to training [Thesis]. https://doi.org/10.4226/66/5a9cbd05b0b98
Assessment of conditioning-specific movement tasks and physical fitness measures in talent identified under 16-year-old rugby union players
Parsonage, Joanna R., Williams, Rhodri S., Rainer, Paul, McKeown, Ian and Williams, Morgan D.. (2015). Assessment of conditioning-specific movement tasks and physical fitness measures in talent identified under 16-year-old rugby union players. Journal of Strength and Conditioning Research. 28(6), pp. 1497 - 1506. https://doi.org/10.1519/JSC.0000000000000298
Characteristics impacting on session rating of perceived exertion training load in Australian footballers
Gallo, Tania, Cormack, Stuart, Gabbett, Tim, Williams, Morgan and Lorenzen, Christian. (2015). Characteristics impacting on session rating of perceived exertion training load in Australian footballers. Journal of Sports Sciences. 33(5), pp. 467 - 475. https://doi.org/10.1080/02640414.2014.947311
A comparison of physical and technical match performance of a team competing in the english championship league and then the english premier league following promotion
Morgans, Ryland, Adams, David, Mullen, Richard, Sacramento, Joao, McLellan, Chris and Williams, Morgan David. (2015). A comparison of physical and technical match performance of a team competing in the english championship league and then the english premier league following promotion. International Journal of Sports Science and Coaching. 10(2-3), pp. 543 - 549. https://doi.org/10.1260/1747-9541.10.2-3.543
Reviewing current knowledge in snatch performance and technique: The need for future directions in applied research
Ho, Lester K. W., Lorenzen, Christian, Wilson, Cameron, Saunders, John and Williams, Morgan. (2014). Reviewing current knowledge in snatch performance and technique: The need for future directions in applied research. Journal of Strength and Conditioning Research. 28(2), pp. 574 - 586. https://doi.org/10.1519/JSC.0b013e31829c0bf8
Changes in physical performance variables in an English Championship League team across the competitive season: The effect of possession
Morgans, Ryland, Adams, David, Mullen, Richard and Williams, Morgan David. (2014). Changes in physical performance variables in an English Championship League team across the competitive season: The effect of possession. International Journal of Performance Analysis in Sport. 14(2), pp. 493 - 503. https://doi.org/10.1080/24748668.2014.11868738
The accuracy and precision of DXA for assessing body composition in team sport athletes
Bilsborough, Johann, Greenway, Kate, Opar, David, Livingstone, Steuart, Cordy, Justin and Coutts, Aaron. (2014). The accuracy and precision of DXA for assessing body composition in team sport athletes. Journal of Sports Sciences. 32(19), pp. 1821 - 1828. https://doi.org/10.1080/02640414.2014.926380
Benefits of whole-body vibration to people with COPD: a community-based efficacy trial
Furness, Trentham, Joseph, Corey, Naughton, Geraldine, Welsh, Liam and Lorenzen, Christian. (2014). Benefits of whole-body vibration to people with COPD: a community-based efficacy trial. BMC Pulmonary Medicine. 14(1), pp. 1 - 7. https://doi.org/10.1186/1471-2466-14-38
Assessment of conditioning-specific movement tasks and physical fitness measures in talent identified under 16-year-old rugby union players
Parsonage, Joanna, Williams, Rhodri, Rainer, Paul, McKeown, Ian and Williams, Morgan. (2014). Assessment of conditioning-specific movement tasks and physical fitness measures in talent identified under 16-year-old rugby union players. Journal of Strength and Conditioning Research. 28(6), pp. 1497 - 1506. https://doi.org/10.1519/JSC.0000000000000298
Technical and physical performance over an english championship league season
Morgans, Ryland, Adams, David, Mullen, Richard, McLellan, Chris and Williams, Morgan David. (2014). Technical and physical performance over an english championship league season. International Journal of Sports Science and Coaching. 9(5), pp. 1033 - 1042. https://doi.org/10.1260/1747-9541.9.5.1033
Is there a potential relationship between prior hamstring strain injury and increased risk for future anterior cruciate ligament injury?
Opar, David and Serpell, Benjamin. (2014). Is there a potential relationship between prior hamstring strain injury and increased risk for future anterior cruciate ligament injury? Archives of Physical Medicine and Rehabilitation. 95(2). https://doi.org/10.1016/j.apmr.2013.07.028
Benefits of whole-body vibration to people with COPD: A community-based efficacy trial
Furness, Trentham, Joseph, Corey, Naughton, Geraldine, Welsh, Liam and Lorenzen, Christian. (2014). Benefits of whole-body vibration to people with COPD: A community-based efficacy trial. BMC Pulmonary Medicine. 14(38), pp. 1 - 7. https://doi.org/10.1186/1471-2466-14-38
Reduced biceps femoris myoelectrical activity influences eccentric knee flexor weakness after repeat sprint running
Timmins, R. G., Opar, D. A., Williams, M. D., Schache, A. G., Dear, N. M. and Shield, A. J.. (2014). Reduced biceps femoris myoelectrical activity influences eccentric knee flexor weakness after repeat sprint running. Scandinavian Journal of Medicine & Science in Sports. 24(4), pp. e299-e305. https://doi.org/10.1111/sms.12171
The financial cost of hamstring strain injuries in the Australian Football League
Hickey, Jack, Shield, Anthony J., Williams, Morgan D. and Opar, David A. (2014). The financial cost of hamstring strain injuries in the Australian Football League. British Journal of Sports Medicine. 48(8), pp. 729-730. https://doi.org/10.1136/bjsports-2013-092884
Acute hamstring strain injury in track-and-field athletes: A 3-year observational study at the Penn Relay Carnival
Opar, David, Drezner, Jonathan, Shield, Anthony, Williams, Morgan, Webner, David, Sennett, Brian, Kapur, Rahul, Cohen, M., Ulager, James and Cafengiu, Ana. (2014). Acute hamstring strain injury in track-and-field athletes: A 3-year observational study at the Penn Relay Carnival. Scandinavian Journal of Medicine & Science in Sports. 24(4). https://doi.org/10.1111/sms.12159
A novel device using the Nordic hamstring exercise to assess eccentric knee flexor strength: A reliability and retrospective injury study
Opar, David, Piatowski, Timothy, Williams, Morgan and Shield, Anthony J.. (2013). A novel device using the Nordic hamstring exercise to assess eccentric knee flexor strength: A reliability and retrospective injury study. Journal of Orthopaedic and Sports Physical Therapy. 43(9), pp. 636 - 640. https://doi.org/10.2519/jospt.2013.4837
Relationship between tests of physical qualities and physical match performance in elite rugby league players
Gabbett, Timothy, Stein, Joshua, Kemp, Justin and Lorenzen, Christian. (2013). Relationship between tests of physical qualities and physical match performance in elite rugby league players. Journal of Strength and Conditioning Research. https://doi.org/10.1519/JSC.0b013e318274f236
Applying decision tree induction for identification of important attributes in one-versus-one player interactions : A hockey exemplar
Morgan, Stuart, Williams, Morgan and Barnes, Chris. (2013). Applying decision tree induction for identification of important attributes in one-versus-one player interactions : A hockey exemplar. Journal of Sports Sciences. https://doi.org/10.1080/02640414.2013.770906
Endurance and sprint benefits of high-intensity and supramaximal interval training
Cicioni-Kolsky, Daniel James, Lorenzen, Christian, Williams, Morgan and Kemp, Justin. (2013). Endurance and sprint benefits of high-intensity and supramaximal interval training. European Journal of Sport Science. https://doi.org/10.1080/17461391.2011.606844
Successful short passing frequency of defenders differentiates between top and bottom four English Premier League teams
Adams, David, Morgans, Ryland, Sacramento, Joao, Morgan, Stuart and Williams, Morgan David. (2013). Successful short passing frequency of defenders differentiates between top and bottom four English Premier League teams. International Journal of Performance Analysis in Sport. 13(3), pp. 653 - 668. https://doi.org/10.1080/24748668.2013.11868678
Rate of torque and electromyographic development during anticipated eccentric contraction is lower in previously strained hamstrings
Opar, David A., Williams, Morgan D., Timmins, Ryan G. and Dear, Nuala M. (2013). Rate of torque and electromyographic development during anticipated eccentric contraction is lower in previously strained hamstrings. The American Journal of Sports Medicine. 41(1), pp. 116-125. https://doi.org/10.1177/0363546512462809
The role of neuromuscular inhibition in hamstring strain injury recurrence
Fyfe, Jackson, Opar, David, Williams, Morgan and Shield, Anthony. (2013). The role of neuromuscular inhibition in hamstring strain injury recurrence. Journal of Electromyography and Kinesiology. 23(3), pp. 523-530. https://doi.org/10.1016/j.jelekin.2012.12.006
Knee flexor strength and bicep femoris electromyographical activity is lower in previously strained hamstrings
Opar, David A., Williams, Morgan D., Timmins, Ryan G., Dear, Nuala M. and Shield, Anthony J. (2013). Knee flexor strength and bicep femoris electromyographical activity is lower in previously strained hamstrings. Journal of Electromyography and Kinesiology. 23(3), pp. 696-703. https://doi.org/10.1016/j.jelekin.2012.11.004
Outcome and process in motor performance : A comparison of jumping by typically developing children and those with low motor proficiency
Williams, Morgan, Saunders, John, Maschette, Wayne Edward and Wilson, Cameron. (2013). Outcome and process in motor performance : A comparison of jumping by typically developing children and those with low motor proficiency. Measurement in Physical Education and Exercise Science. https://doi.org/10.1080/1091367X.2013.761029
Whole-body vibration as a mode of dyspnoea free physical activity: a community-based proof-of-concept trial
Furness, Trentham, Joseph, Corey, Welsh, Liam, Naughton, Geraldine and Lorenzen, Christian. (2013). Whole-body vibration as a mode of dyspnoea free physical activity: a community-based proof-of-concept trial. BMC Research Notes. 6(452), pp. 1 - 4. https://doi.org/10.1186/1756-0500-6-452
Efficacy of a whole-body vibration intervention to effect exercise tolerance and functional performance of the lower limbs of people with chronic obstructive pulmonary disease
Furness, Trentham, Bate, Nicole, Welsh, Liam, Naughton, Geraldine and Lorenzen, Christian. (2012). Efficacy of a whole-body vibration intervention to effect exercise tolerance and functional performance of the lower limbs of people with chronic obstructive pulmonary disease. BMC Pulmonary Medicine. 12(71), pp. 1 - 6. https://doi.org/10.1186/1471-2466-12-71
Exploring Children's Motor Development
Saunders, John, Williams, Morgan and Wilson, Cameron. (2012). Exploring Children's Motor Development. Sports Science in the heart of Europe 17th Annual Congress of the European College of Sprots Science. Germany: European College of Sport Science (ECSS). pp. 1884 - 1884
Classifying training drills based on movement demands in Australian Football
Loader, Jordan, Montgomery, Paul, Williams, Morgan, Lorenzen, Christian and Kemp, Justin. (2012). Classifying training drills based on movement demands in Australian Football. International Journal of Sports Science and Coaching. 7(1), pp. 57 - 67. https://doi.org/10.1260/1747-9541.7.1.57
Hamstring strain injuries : Factors that lead to injury and re-injury
Opar, David A., Williams, Morgan D. and Shield, Anthony J. (2012). Hamstring strain injuries : Factors that lead to injury and re-injury. Sports Medicine. 42(3), pp. 209-226. https://doi.org/10.2165/11594800-000000000-00000
Reduction of post-surgical pericardial adhesions using a pig model
Alizzi, Ali M., Summers, Phillip, Boon, Virginia H., Tantiongco, John-Paul, Thompson, Teresa, Leslie, Belinda J., Williams, David, Steele, Michael Craig, Bidstrup, Benjamin P. and Diqer, Al-Mutazz A.. (2012). Reduction of post-surgical pericardial adhesions using a pig model. Heart, Lung and Circulation. 21(1), pp. 22 - 29. https://doi.org/10.1016/j.hlc.2011.10.002
Using three-dimensional kinematics to identify feedback for the snatch :A case study
Ho, Kuok Wai, Williams, Morgan, Wilson, Cameron and Meehan, Daniel. (2011). Using three-dimensional kinematics to identify feedback for the snatch :A case study. Journal of Strength and Conditioning Research. 25(10), pp. 2773 - 2780. https://doi.org/10.1519/JSC.0b013e31820f500e
Efficacy of a whole-body vibration intervention on functional performance of community-dwelling older adults
Furness, Trentham, Maschette, Wayne, Lorenzen, Christian, Naughton, Geraldine and Williams, Morgan. (2010). Efficacy of a whole-body vibration intervention on functional performance of community-dwelling older adults. Journal of Alternative & Complementary Medicine. 16(7), pp. 795 - 797. https://doi.org/10.1089/acm.2009.0366
Whole body vibration for preventing and treating osteoporosis (protocol)
Lorenzen, Christian, Naughton, Geraldine, Cameron, Lainie, Williams, Morgan and Greene, David. (2010). Whole body vibration for preventing and treating osteoporosis (protocol). Cochrane Database of Systematic Reviews.
Acute effects of strength training on running economy
Ho, Kuok Wai, Williams, Morgan D., Wilson, Cameron J., Lorenzen, Hans Christian, Meehan, Daniel L. and Joseph, Corey W.. (2010). Acute effects of strength training on running economy. 28th Conference of the International Society of Biomechanics in Sports. USA: International Society of Biomechanics. pp. 551 - 554
Breaking the vicious cycle of activity avoidance in an adolescent boy diagnosed with DCD and mild Asperberger's disorder
Aumand, Elizabeth, Williams, Morgan, Wilson, Cameron and Saunders, John. (2010). Breaking the vicious cycle of activity avoidance in an adolescent boy diagnosed with DCD and mild Asperberger's disorder. 4th Exercise and Sports Science Australia Conference 2010 : Research to practice : Science and nutrition in exercise and sport. Gold Coast, Queensland, Australia 09 - 11 Apr 2010 Red Hill, Queensland: Exercise and Sports Science Australia. pp. 64-64
Transmission of vibration about the knee
Furness, Trentham P., Joseph, Corey W., Share, Bianca Louise, Naughton, Geraldine Ann, Maschette, Wayne and Lorenzen, Hans Christian. (2010). Transmission of vibration about the knee. 28th Conference of the International Society of Biomechanics in Sports. Marquette, USA: International Society of Biomechanics. pp. 215 - 218
Analysis of player workloads for defensive outlets at the Champion's Trophy International Field Hockey
Morgan, Stuart and Williams, Morgan. (2010). Analysis of player workloads for defensive outlets at the Champion's Trophy International Field Hockey. 15th Annual Congress of the ECSS (European College of Sports Science). Antalya, Turkey 23 - 26 Jun 2010
Good, good, good vibrations
Lorenzen, Hans Christian, Furness, Trentham P. and Maschette, Wayne Edward. (2009). Good, good, good vibrations. 2008 Vario Health Conference - Physical and Mental Wellness: Integrative Approaches to Health. Western Australia, Australia: Edith Cowan University. pp. 75 - 86
Relationship between velocity reached at VO2max and time-trial performances in elite australian rules footballers
Lorenzen, Christian Hans, Williams, Morgan D., Turk, Paul S., Meehan, Daniel Lawrence and Cicioni-Kolsky, Daniel James. (2009). Relationship between velocity reached at VO2max and time-trial performances in elite australian rules footballers. International Journal of Sports Physiology and Performance. 4(3), pp. 408 - 411. https://doi.org/10.1123/ijspp.4.3.408
Stabilising the hip and pelvis during running: Is there an explosive solution for uninjured athletes?
Meehan, Daniel Lawrence, Williams, Morgan David, Wilson, Cameron John and Bradshaw, Elizabeth Jane. (2009). Stabilising the hip and pelvis during running: Is there an explosive solution for uninjured athletes? 27th International Conference on Biomechanics; in Sports. Castleroy, Limerick, Ireland: University of Limerick. pp. 390 - 393
Reliability of the Ekblom Soccer-Specific Endurance Test
Williams, Morgan D., Wiltshire, Huw D., Lorenzen, Christian Hans, Wilson, Cameron J., Meehan, Daniel Lawrence and Cicioni-Kolsky, Daniel James. (2009). Reliability of the Ekblom Soccer-Specific Endurance Test. Journal of Strength and Conditioning Research. 23(5), pp. 1378 - 1382. https://doi.org/10.1519/JSC.0b013e31819f1e6c
Horizontal positioning error derived from stationary GPS units: A function of time and proximity to building infrastructure
Williams, Morgan and Morgan, Stuart. (2009). Horizontal positioning error derived from stationary GPS units: A function of time and proximity to building infrastructure. International Journal of Performance Analysis in Sport. 9(2), pp. 275 - 280.
Exploration of differences in vertical jump performance between typically developing children and those identified with DCD: A kinematic and kinetic analysis
Williams, Morgan. (2008). Exploration of differences in vertical jump performance between typically developing children and those identified with DCD: A kinematic and kinetic analysis [Thesis]. https://doi.org/10.4226/66/5a95e2f4c67fa
Laterality and its effect on lower extremity musculoskeletal stiffness in male soccer players and track runners
Williams, Morgan David, Bradshaw, Elizabeth Jane and Joseph, Corey W.. (2007). Laterality and its effect on lower extremity musculoskeletal stiffness in male soccer players and track runners. In Hans-Joachim Menzel and Mauro Heleno Chagas (Ed.). XXV International Symposium on Biomechanics; in Sports. Segrac,Brazil: Department of Sports, Federal University of Minas Gerais. pp. 613 - 617
Measurement agreement (repeatability) for a countermovement jump protocol using a portable forceplate
Williams, Morgan, Bradshaw, Elizabeth and Maschette, Wayne. (2007). Measurement agreement (repeatability) for a countermovement jump protocol using a portable forceplate. International Journal of Sports Physiology and Performance. 2(4), pp. 445 - 448. https://doi.org/10.1123/ijspp.2.4.445
Differences in vertical jump performance for typically developing compared to those identified with DC
Maschette, Wayne and Williams, Morgan David. (2007). Differences in vertical jump performance for typically developing compared to those identified with DC. 2nd Australian Association for Exercise and Sports Science Conference.
The response of elderly female fast gait to whole body vibration
Lorenzen, Hans Christian. (2007). The response of elderly female fast gait to whole body vibration [Thesis]. https://doi.org/10.4226/66/5a95db13c67d5
Evaluating strength qualities of athletes using relationships between jump protocols
Williams, Morgan David, Joseph, Corey W. and Bradshaw, Elizabeth Jane. (2007). Evaluating strength qualities of athletes using relationships between jump protocols. In Hans-Joachim Menzel and Mauro Heleno Chagas (Ed.). Federal University of the State of Minas Gerais in Belo Horizonte, Ouro Preto, Brazil. Segrac,Brazil: Department of Sports, Federal University of Minas Gerais. pp. 474 - 477
Good vibrations, bad vibrations: The facts and myths uncovered
Maschette, Wayne Edward and Lorenzen, Hans Christian. (2007). Good vibrations, bad vibrations: The facts and myths uncovered. Singapore Physical Education Association Conference - Physical Education in A changing World.
Novel insights on lower limb musculoskeletal health and performance in pre-adolescent and adolescent gymnasts
Bradshaw, Elizabeth Jane, Lorenzen, Hans Christian, Williams, Morgan David and Le Rossignol, Peter Freeman. (2006). Novel insights on lower limb musculoskeletal health and performance in pre-adolescent and adolescent gymnasts. In M Schwaneder, G Strutzenberger and Sastenbauer et al (Ed.). XXI International Conference on Biomechanics; in Sport. Salzburg, Austria: University of Salzburg. pp. 413 - 417
Timing error by children identified with DCD leads to inefficient jump performance
Williams, Morgan David, Lythgo, Noel Desmond and Maschette, Wayne Edward. (2006). Timing error by children identified with DCD leads to inefficient jump performance. In M Schwaneder, G Strutzenberger and Sastenbauer et al (Ed.). XXIV International Symposium on Biomechanics; in Sports. Salzburg, Austria: University of Salzburg. pp. 54 - 57