Differences in lower limb strength and structure after 12 weeks of resistance, endurance, and concurrent training

Journal article


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
AuthorsTimmins, Ryan G., Shamim, Baubak, Tofari, Paul J., Hickey, Jack T. and Camera, Donny M.
Abstract

Purpose: To investigate strength and structural adaptations after 12 weeks of resistance, endurance cycling, and concurrent training. Methods: Thirty-two healthy males undertook 12 weeks of resistance-only (RT; n = 10), endurance-only (END; n = 10), or concurrent resistance and endurance training (CONC; n = 12). Biceps femoris long head (BFlh) architecture, strength (3-lift 1-repetition maximum), and body composition were assessed. Results: Fascicle length of the BFlh reduced 15% (6%) (P < .001) and 9% (6%) (P < .001) in the END and CONC groups postintervention, with no change in the RT group (−4% [11%], P = .476). All groups increased BFlh pennation angle (CONC: 18% [9%], RT: 14% [8%], and END: 18% [10%]). Thickness of the BFlh increased postintervention by 7% (6%) (P = .002) and 7% (7%) (P = .003) in the CONC and RT groups, respectively, but not in the END group (0% [3%], P = .994). Both the CONC and RT groups significantly increased by 27% (11%) (P < .001) and 33% (12%) (P < .001) in 3-lift totals following the intervention, with no changes in the END cohort (6% [6%], P = .166). No significant differences were found for total body (CONC: 4% [2%], RT: 4% [2%], and END: 3% [2%]) and leg (CONC: 5% [3%], RT: 6% [3%], and END: 5% [3%]) fat-free mass. Conclusions: Twelve weeks of RT, END, or CONC significantly modified BFlh architecture. This study suggests that conventional resistance training may dampen BFlh fascicle shortening from cycling training while increasing strength simultaneously in concurrent training. Furthermore, the inclusion of a cycle endurance training stimulus may result in alterations to hamstring architecture that increase the risk of future injury. Therefore, the incorporation of endurance cycling training within concurrent training paradigms should be reevaluated when trying to modulate injury risk.

Keywordsfascicle length; cycling; muscle injury; hamstring
Year2020
JournalInternational Journal of Sports Physiology and Performance
Journal citation15 (9), pp. 1223-1230
PublisherHuman Kinetics Publishers
ISSN1555-0265
Digital Object Identifier (DOI)https://doi.org/10.1123/IJSPP.2019-0788
Scopus EID2-s2.0-85095448450
Open accessPublished as green open access
Page range1223-1230
FunderAustralian Catholic University (ACU)
Author's accepted manuscript
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All rights reserved
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Open
Publisher's version
License
All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online25 Mar 2020
Publication process dates
Deposited21 May 2021
Grant IDACU/36331
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Conceição, Miguel Soares, Mendes, Telles, Guilherme Defante, Libardi, Cleiton Augusto, Castro, Alex, Andrade, André L. L., Brum, Patrícia Chakur, Urias, Úrsula, Kurauti, Mirian Ayumi, Costa, Boschero, Antonio Carlos, Cavaglieri, Cláudia Regina, Camera, Donny M., Chacon-Mikahil, Mara Patricia Traina, Junior, Edson Manoel Mendes and Júnior, José Maria Costa. (2019). Augmented anabolic responses after 8-wk cycling with blood flow restriction. Medicine and Science in Sports and Exercise. 51(1), pp. 84 - 93. https://doi.org/10.1249/MSS.0000000000001755
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
Autophagy, exercise, and lifestyle modification
Camera, Donny M. and Smiles, William J.. (2018). Autophagy, exercise, and lifestyle modification. In In Ren, Jun, Sowers, James R. and Zhang, Yingmei (Ed.). Autophagy and cardiometabolic diseases : From molecular mechanisms to translational medicine pp. 305-314 Academic Press. https://doi.org/10.1016/B978-0-12-805253-2.00025-0
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
Effects of creatine and carbohydrate loading on cycling time trial performance
Tomcik, Kristyen A., Camera, Donny, Bone, Julia L. L., Ross, Meg, Jeacocke, N. A., Tachtsis, Bill, Senden, Joan M., Van Loon, Luc, Hawley, John and Burke, Louise. (2018). Effects of creatine and carbohydrate loading on cycling time trial performance. Medicine and Science in Sports and Exercise. 50(1), pp. 141 - 150. https://doi.org/10.1249/MSS.0000000000001401
Potential Roles of n-3 PUFAs during Skeletal Muscle Growth and Regeneration
Tachtsis, Bill, Camera, Donny and Lacham-Kaplan, Orly. (2018). Potential Roles of n-3 PUFAs during Skeletal Muscle Growth and Regeneration. Nutrients. 10(3), p. 309. https://doi.org/10.3390/nu10030309
Anabolic heterogeneity following resistance training: A role for Circadian rhythm?
Camera, Donny M.. (2018). Anabolic heterogeneity following resistance training: A role for Circadian rhythm? Frontiers in Physiology. 9, pp. 1 - 13. https://doi.org/10.3389/fphys.2018.00569
Hamstring strain injury: objective assessment tools and exercise-specific progression criteria during pain-threshold rehabilitation
Hickey, Jack Thomas. (2018). Hamstring strain injury: objective assessment tools and exercise-specific progression criteria during pain-threshold rehabilitation [Thesis]. https://doi.org/10.26199/5b87746aba291
Potential roles of n-3 PUFAs during skeletal muscle growth and regeneration
Tachtsis, Bill, Camera, Donny and Lacham-Kaplan, Orly. (2018). Potential roles of n-3 PUFAs during skeletal muscle growth and regeneration. Nutrients. 10(3), pp. 1 - 20. https://doi.org/10.3390/nu10030309
The guardian of the genome p53 regulates exercise-induced mitochondrial plasticity beyond organelle biogenesis
Smiles, William and Camera, Donny. (2018). The guardian of the genome p53 regulates exercise-induced mitochondrial plasticity beyond organelle biogenesis. Acta Physiologica. 222(3), pp. 1 - 13. https://doi.org/10.1111/apha.13004
Protein availability and satellite cell dynamics in skeletal muscle
Shamim, Baubak, Hawley, John and Camera, Donny. (2018). Protein availability and satellite cell dynamics in skeletal muscle. Sports Medicine. 48(6), pp. 1329 - 1343. https://doi.org/10.1007/s40279-018-0883-7
Self-paced team-sport match simulation results in reductions in voluntary activation and modifications to biological, perceptual, and performance measures at halftime and for up to 96 hours postmatch
Tofari, Paul J., Kemp, Justin G. and Cormack, Stuart J.. (2018). Self-paced team-sport match simulation results in reductions in voluntary activation and modifications to biological, perceptual, and performance measures at halftime and for up to 96 hours postmatch. Journal of Strength and Conditioning Research. 32(12), pp. 3552 - 3563. https://doi.org/10.1519/JSC.0000000000001875
Where do satellite cells orbit? An endomysium space odyssey
Shamim, Baubak, Conceicao, Miguel, Callahan, Marcus J. and Camera, Donny. (2018). Where do satellite cells orbit? An endomysium space odyssey. The Journal of Physiology. 596(10), pp. 1791 - 1792. https://doi.org/10.1113/JP276024
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
Muscle fiber hypertrophy and myonuclei addition: a systematic review and meta-analysis
Conceição, Miguel S., Vechin, Felipe C., Lixandrão, Manoel, Damas, Felipe, Libardi, Cleiton A., Tricoli, Valmor, Roschel, Hamilton, Camera, Donny and Ugrinowitsch, Carlos. (2018). Muscle fiber hypertrophy and myonuclei addition: a systematic review and meta-analysis. Medicine and Science in Sports and Exercise. 50(7), pp. 1385 - 1393. https://doi.org/10.1249/MSS.0000000000001593
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
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
Fenugreek increases insulin-stimulated creatine content in l6C11 muscle myotubes
Tomcik, Kristyen, Smiles, William, Camera, Donny, Hugel, Helmut M., Hawley, John and Watts, Rani. (2017). Fenugreek increases insulin-stimulated creatine content in l6C11 muscle myotubes. European Journal of Nutrition. 56(3), pp. 973 - 979. https://doi.org/10.1007/s00394-015-1145-1
Acute low-intensity cycling with blood-flow restriction has no effect on metabolic signaling in human skeletal muscle compared to traditional exercise
Smiles, William J., Conceição, Miguel S., Telles, Guilherme D., Chacon-Mikahil, Mara P. T., Cavaglieri, Cláudia R., Vechin, Felipe C., Libardi, Cleiton A., Hawley, John A. and Camera, Donny M.. (2017). Acute low-intensity cycling with blood-flow restriction has no effect on metabolic signaling in human skeletal muscle compared to traditional exercise. European Journal of Applied Physiology. 117(2), pp. 345-358. https://doi.org/10.1007/s00421-016-3530-8
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
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
Dynamic proteome profiling of individual proteins in human skeletal muscle after a high-fat diet and resistance exercise
Camera, Donny M., Burniston, Jatin G., Pogson, Mark A., Smiles, William J. and Hawley, John A.. (2017). Dynamic proteome profiling of individual proteins in human skeletal muscle after a high-fat diet and resistance exercise. The FASEB Journal. 31(12), pp. 5478-5494. https://doi.org/10.1096/fj.201700531R
Comparison of ergometer- and track-based testing in junior track-sprint cyclists. Implications for talent identification and development
Tofari, Paul, Cormack, Stuart, Ebert, Tammie R., Gardner, A. S. and Kemp, Justin. (2017). Comparison of ergometer- and track-based testing in junior track-sprint cyclists. Implications for talent identification and development. Journal of Sports Sciences. https://doi.org/10.1080/02640414.2016.1243795
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
Non-motorized treadmill running is associated with higher cardiometabolic demands compared with overground and motorized treadmill running
Edwards, Robert B., Tofari, Paul J., Cormack, Stuart J. and Whyte, Douglas G.. (2017). Non-motorized treadmill running is associated with higher cardiometabolic demands compared with overground and motorized treadmill running. Frontiers in Physiology. 8(914), pp. 1 - 11. https://doi.org/10.3389/fphys.2017.00914
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
Transcriptomic and epigenetic responses to short-term nutrient-exercise stress in humans
Laker, R. C., Garde, C., Camera, Donny, Smiles, William, Zierath, J. R., Hawley, John and Barrès, R.. (2017). Transcriptomic and epigenetic responses to short-term nutrient-exercise stress in humans. Scientific Reports. 7(1), pp. 1 - 12. https://doi.org/10.1038/s41598-017-15420-7
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
Expression of microRNAs and target proteins in skeletal muscle of rats selectively bred for high and low running capacity
Pinto, Samuel K., Lamon, Séverine, Stephenson, Erin J., Kalanon, M., Mikovic, Jasmine, Koch, L G., Britton, S. L., Hawley, John and Camera, Donny. (2017). Expression of microRNAs and target proteins in skeletal muscle of rats selectively bred for high and low running capacity. American Journal of Physiology - Endocrinology and Metabolism. 313(3), pp. 335 - 343. https://doi.org/10.1152/ajpendo.00043.2017
Acute endurance exercise induces nuclear p53 abundance in human skeletal muscle
Tachtsis, Bill, Smiles, William, Lane, Steven C., Hawley, John Alan and Camera, Donny Michael. (2016). Acute endurance exercise induces nuclear p53 abundance in human skeletal muscle. Frontiers in Physiology. 7(144), pp. 1 - 10. https://doi.org/10.3389/fphys.2016.00144
Circulating microRNA responses between 'high' and 'low' responders to a 16-wk diet and exercise weight loss intervention
Parr, Evelyn B., Camera, Donny M., Burke, Louise M., Phillips, Stuart M., Coffey, Vernon G. and Hawley, John Alan. (2016). Circulating microRNA responses between 'high' and 'low' responders to a 16-wk diet and exercise weight loss intervention. PLoS ONE. 11(4), pp. 1 - 14. https://doi.org/10.1371/journal.pone.0152545
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
Short biceps femoris fascicles and eccentric knee flexor weakness increase the risk of hamstring injury in elite football (soccer): a prospective cohort study
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
Commentaries on Viewpoint: The rigorous study of exercise adaptations: Why mRNA might not be enough
Camera, Donny and Hawley, John. (2016). Commentaries on Viewpoint: The rigorous study of exercise adaptations: Why mRNA might not be enough. Journal of Applied Physiology. 121(2), pp. 598 - 598. https://doi.org/10.1152/japplphysiol.00509.2016
Exercise-induced skeletal muscle signaling pathways and human athletic performance
Camera, Donny Michael, Smiles, William J. and Hawley, John Alan. (2016). Exercise-induced skeletal muscle signaling pathways and human athletic performance. Free Radical Biology & Medicine. 98, pp. 131 - 143. https://doi.org/10.1016/j.freeradbiomed.2016.02.007
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
Effects of skeletal muscle energy availability on protein turnover responses to exercise
Smiles, William J., Hawley, John Alan and Camera, Donny Michael. (2016). Effects of skeletal muscle energy availability on protein turnover responses to exercise. Journal of Experimental Biology. 219(Pt 2), pp. 214 - 225. https://doi.org/10.1242/jeb.125104
Tactical combat movements: inter-individual variation in performance due to the effects of load carriage
Hunt, Andrew P., Tofari, Paul J., Billing, Daniel C. and Silk, Aaron J.. (2016). Tactical combat movements: inter-individual variation in performance due to the effects of load carriage. Ergonomics. 59(9), pp. 1232 - 1241. https://doi.org/10.1080/00140139.2015.1132780
Protein coingestion with alcohol following strenuous exercise attenuates alcohol-induced intramyocellular apoptosis and inhibition of autophagy
Smiles, William J., Parr, Evelyn B., Coffey, Vernon G., Lacham-Kaplan, Orly, Hawley, John Alan and Camera, Donny Michael. (2016). Protein coingestion with alcohol following strenuous exercise attenuates alcohol-induced intramyocellular apoptosis and inhibition of autophagy. American Journal of Physiology - Endocrinology and Metabolism. 311(5), pp. E836 - E849. https://doi.org/10.1152/ajpendo.00303.2016
Attenuated PGC-1α isoforms following endurance exercise with blood flow restriction
Conceição, Miguel Soares, Chacon-Mikahil, Mara Patricia Traina, Telles, Guilherme Defante, Libardi, Cleiton Augusto, Júnior, Edson Manoel Mendes, Vechin, Felipe Cassaro, Lugani de Andrade, André Luis, Gáspari, Arthur Fernandes, Brum, Patrícia Chakur, Cavaglieri, Cláudia Regina, Serag, Sara, Spiegelman, Bruce M., Hawley, John A. and Camera, Donny M.. (2016). Attenuated PGC-1α isoforms following endurance exercise with blood flow restriction. Medicine and Science in Sports and Exercise. 16(4809), pp. 1699-1707. https://doi.org/10.1249/MSS.0000000000000970
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
Selective modulation of microRNA expression with protein ingestion following concurrent resistance and endurance exercise in human skeletal muscle
Camera, Donny Michael, Ong, Jun N., Coffey, Vernon Glenn and Hawley, John Alan. (2016). Selective modulation of microRNA expression with protein ingestion following concurrent resistance and endurance exercise in human skeletal muscle. Frontiers in Physiology. 7(Mar), pp. 1 - 8. https://doi.org/10.3389/fphys.2016.00087
Modulation of autophagy signaling with resistance exercise and protein ingestion following short-term energy deficit
Smiles, William J., Areta, José L., Coffey, Vernon G., Phillips, Stuart M., Moore, Daniel R., Stellingwerff, Trent, Burke, Louise M., Hawley, John A. and Camera, Donny M.. (2015). Modulation of autophagy signaling with resistance exercise and protein ingestion following short-term energy deficit. American Journal of Physiology - Regulatory Integrative and Comparative Physiology. 309(5), pp. R603-R612. https://doi.org/10.1152/ajpregu.00413.2014
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
Effects of Military Load Carriage on Susceptibility to Enemy Fire During Tactical Combat Movements
Billing, Daniel C., Silk, Aaron J., Tofari, Paul J. and Hunt, Andrew P.. (2015). Effects of Military Load Carriage on Susceptibility to Enemy Fire During Tactical Combat Movements. Journal of Strength and Conditioning Research. 29(11S), pp. S134 - S138. https://doi.org/10.1519/JSC.0000000000001036
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
Changes in running performance after four weeks of interval training in Australian Footballers : A single-blind placebo-controlled study
McLean, Blake, Tofari, Paul, Gore, Christopher and Kemp, Justin. (2015). Changes in running performance after four weeks of interval training in Australian Footballers : A single-blind placebo-controlled study. Journal of Strength and Conditioning Research. 29(11), pp. 3206 - 3215. https://doi.org/10.1519/JSC.0000000000000984
Need for measures of satellite cell activation along with muscle protein synthesis?
Camera, Donny and Hawley, John. (2015). Need for measures of satellite cell activation along with muscle protein synthesis? Journal of Applied Physiology. 118(4), pp. 500 - 500. https://doi.org/10.1152/japplphysiol.00609.2014.
Alcohol ingestion impairs maximal post-exercise rates of myofibrillar protein synthesis following a single bout of concurrent training
Parr, Evelyn, Camera, Donny, Areta, José, Burke, Louise, Phillips, Stuart, Hawley, John A. and Coffey, Vernon. (2014). Alcohol ingestion impairs maximal post-exercise rates of myofibrillar protein synthesis following a single bout of concurrent training. PLoS ONE. 9(2), pp. 1 - 9. https://doi.org/10.1371/journal.pone.0088384
Beyond muscle hypertrophy: Why dietary protein is important for endurance athletes
Moore, Daniel, Camera, Donny, Areta, José and Hawley, John A.. (2014). Beyond muscle hypertrophy: Why dietary protein is important for endurance athletes. Applied Physiology, Nutrition and Metabolism. 39(9), pp. 987 - 997. https://doi.org/10.1139/apnm-2013-0591
Reduced resting skeletal muscle protein synthesis is reduced by resistance exercise and protein ingestion following short-term energy deficit
Areta, José, Burke, Louise, Camera, Donny, West, Daniel, Crawshay, Siobhan, Moore, Daniel, Stellingwerff, Trent, Phillips, Stuart, Hawley, John A. and Coffey, Vernon. (2014). Reduced resting skeletal muscle protein synthesis is reduced by resistance exercise and protein ingestion following short-term energy deficit. American Journal of Physiology - Endocrinology and Metabolism. 306(8), pp. E989 - E997. https://doi.org/10.1152/ajpendo.00590.2013
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
Meteorin-like is a hormone that regulates immune-adipose interactions to increase beige fat thermogenesis
Rao, Rajesh, Long, Jonathan, White, James, Svensson, Katrin, Lou, Jesse, Lokurkar, Isha, Jedrychowski, Mark, Ruas, Jorge, Wrann, Christiane, Lo, James, Camera, Donny, Lachey, Jenn, Gygi, Steven, Seehra, Jasbir, Hawley, John and Spiegelman, Bruce. (2014). Meteorin-like is a hormone that regulates immune-adipose interactions to increase beige fat thermogenesis. Cell. 157(6), pp. 1279 - 1291. https://doi.org/10.1016/j.cell.2014.03.065
Meteorin-like Is a Hormone that Regulates Immune-Adipose Interactions to Increase Beige Fat Thermogenesis
Rao, Rajesh, Long, Jonathan Z., White, James P., Svensson, Katrin J., Lou, Jesse, Lokurkar, Isha, Jedrychowski, Mark P., Ruas, Jorge L., Wrann, Christine D., Camera, Donny, Lachey, Jenn, Gygi, Steven, Seehra, Jasbir, Hawley, John and Spiegelman, Bruce M.. (2014). Meteorin-like Is a Hormone that Regulates Immune-Adipose Interactions to Increase Beige Fat Thermogenesis. Cell. 157(6), pp. 1279 - 1291. https://doi.org/10.1016/j.cell.2014.03.065
A quantification of the physiological demands of the army emergency responder in the Australian Army
Tofari, Paul J., Laing Treloar, Alison K. and Silk, Aaron J.. (2013). A quantification of the physiological demands of the army emergency responder in the Australian Army. Military Medicine. 178(5), pp. 487 - 494. https://doi.org/10.7205/MILMED-D-12-00423
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
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
ERK1/2 in the brain mediates the effects of central resistin on reducing thermogenesis in brown adipose tissue
Kosari, Samin, Camera, Donny Michael, Hawley, John Alan, Stebbing, Martin and Badoer, Emilio. (2013). ERK1/2 in the brain mediates the effects of central resistin on reducing thermogenesis in brown adipose tissue. International Journal of Physiology, Pathophysiology and Pharmacology. 5(3), pp. 184 - 189.
Timing and distribution of protein ingestion during prolonged recovery from resistance exercise alters myofibrillar protein synthesis
Areta, José, Burke, Louise, Ross, M, Camera, Donny, West, D, Broad, E, Jeacocke, N, Moore, Daniel, Stellingwerff, T and Phillips, S. (2013). Timing and distribution of protein ingestion during prolonged recovery from resistance exercise alters myofibrillar protein synthesis. The Journal of Physiology. https://doi.org/10.1113/jphysiol.2012.244897
Skeletal muscle respiratory capacity is enhanced in rats consuming an obesogenic Western diet
Stephenson, E, Camera, Donny, Jenkins, T, Kosari, S, Lee, Joohyung, Hawley, John and Stepto, N. (2012). Skeletal muscle respiratory capacity is enhanced in rats consuming an obesogenic Western diet. American Journal of Physiology - Endocrinology and Metabolism. 302(12), pp. E1541 - E1549. https://doi.org/10.1152/ajpendo.00590.2011
Sex-based comparisons of myofibrillar protein synthesis after resistance exercise in the fed state
West, D, Burd, N, Churchward-Venne, T, Camera, Donny, Mitchell, Cameron, Baker, S, Hawley, John, Coffey, Vernon and Phillips, S. (2012). Sex-based comparisons of myofibrillar protein synthesis after resistance exercise in the fed state. Journal of Applied Physiology. 112(11), pp. 1805 - 1813. https://doi.org/10.1152/japplphysiol.00170.2012
Low muscle glycogen concentration does not suppress the anabolic response to resistance exercise
Camera, Donny, West, D, Burd, N, Phillips, S, Garnham, A, Hawley, John and Coffey, Vernon. (2012). Low muscle glycogen concentration does not suppress the anabolic response to resistance exercise. Journal of Applied Physiology. 113(2), pp. 206 - 214. https://doi.org/10.1152/japplphysiol.00395.2012
No role for early IGF-1 signalling in stimulating acute 'muscle building' responses
Burd, Nicholas A., West, D. W., Camera, Donny and Breen, L.. (2011). No role for early IGF-1 signalling in stimulating acute 'muscle building' responses. The Journal of Physiology. https://doi.org/10.1113/jphysiol.2011.207332
A self-paced intermittent protocol on a non-motorised treadmill: A reliable alternative to assessing team-sport running performance
Tofari, Paul J., McLean, Blake D., Kemp, Justin and Cormack, Stuart. (2011). A self-paced intermittent protocol on a non-motorised treadmill: A reliable alternative to assessing team-sport running performance. Journal of Sports Science and Medicine. 14(1), pp. 62 - 68.
Early time course of akt phosphorylation after endurance and resistance exercise
Camera, Donny, Edge, J, Short, M, Hawley, John and Coffey, Vernon. (2010). Early time course of akt phosphorylation after endurance and resistance exercise. Medicine and Science in Sports and Exercise. 42(10), pp. 1843 - 1852. https://doi.org/10.1249/MSS.0b013e3181d964e4
Short-term endurance training does not alter the oxidative capacity of human subcutaneous adipose tissue
Camera, Donny, Anderson, Malcolm, Hawley, John and Carey, A. (2010). Short-term endurance training does not alter the oxidative capacity of human subcutaneous adipose tissue. European Journal of Applied Physiology. 109(2), pp. 307 - 316. https://doi.org/10.1007/s00421-010-1356-3