A novel device to assess hip strength: Concurrent validity and normative values in male athletes

Journal article


O'Brien, Michael, Bourne, Matthew N., Heerey, Joshua, Timmins, Ryan Gregory 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
AuthorsO'Brien, Michael, Bourne, Matthew N., Heerey, Joshua, Timmins, Ryan Gregory and Pizzari, Tania
Abstract

Objectives
To assess concurrent validity of the new, novel externally-fixed dynamometer (GroinBar) with hand-held dynamometry (HHD); to provide normative GroinBar scores for elite Australian rules football (AFL) and football (Soccer) players; and to evaluate preliminary predictive validity of the GroinBar and HHD in this population by comparing strength results with patient-reported outcome scores.

Design
Cross-sectional and reliability study

Participants
Total of 67 athletes, 36 AFL players and 31 football (Soccer) players

Setting
Elite AFL and football (Soccer) teams

Main Outcome Measures The GroinBar system, HHD, The Copenhagen Hip and Groin Outcome Score (HAGOS) Questionnaire.

Results
Moderate to good correlations were identified between the GroinBar and HHD strength tests for hip adduction and abduction in the long lever position (r<sub>s </sub>0.53 – 0.71). Normative values of the GroinBar and HHD for both AFL and football (Soccer) players were obtained. Neither the GroinBar or HHD strength measures differed between players with groin problems and those without.

Conclusion
This externally fixed strength testing device, the GroinBar, may provide a robust method of athlete monitoring and screening that does not rely on tester experience and strength. Normative values are documented for hip adduction and abduction strength in elite male athletes.

KeywordsGroin; Dynamometry; GroinBar; Adductor/Abduction ratio
Year2019
JournalPhysical Therapy in Sport
Journal citation35, pp. 63 - 68
PublisherElsevier
ISSN1466-853X
Digital Object Identifier (DOI)https://doi.org/10.1016/j.ptsp.2018.11.006
Open accessPublished as green open access
Page range63 - 68
Research GroupSports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre
Author's accepted manuscript
Publisher's version
File Access Level
Controlled
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Place of publicationUnited Kingdom
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