Hip strength and range of motion: normal values from a professional football league

Mosler, Andrea B., Crossley, Kay M., Thorborg, Kristian, Whiteley, Rod J., Weir, Adam, Serner, Andreas and Holmich, Per (2017) Hip strength and range of motion: normal values from a professional football league. Journal of Science and Medicine in Sport, 20 4: 339-343. doi:10.1016/j.jsams.2016.05.010


Author Mosler, Andrea B.
Crossley, Kay M.
Thorborg, Kristian
Whiteley, Rod J.
Weir, Adam
Serner, Andreas
Holmich, Per
Title Hip strength and range of motion: normal values from a professional football league
Journal name Journal of Science and Medicine in Sport   Check publisher's open access policy
ISSN 1878-1861
1440-2440
Publication date 2017-04-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.jsams.2016.05.010
Open Access Status Not yet assessed
Volume 20
Issue 4
Start page 339
End page 343
Total pages 5
Place of publication Chatswood, NSW, Australia
Publisher Elsevier Australia
Collection year 2018
Language eng
Formatted abstract
Objectives: To determine the normal profiles for hip strength and range of motion (ROM) in a professional football league in Qatar, and examine the effect of leg dominance, age, past history of injury, and ethnicity on these profiles.

Design: Cross-sectional cohort study.

Methods: Participants included 394 asymptomatic, male professional football players, aged 18–40 years. Strength was measured using a hand held dynamometer with an eccentric test in side-lying for hip adduction and abduction, and the squeeze test in supine with 45° hip flexion. Range of motion measures included: hip internal and external rotation in 90° flexion, hip IR in prone, bent knee fall out and hip abduction in side-lying. Demographic information was collected and the effect on the profiles was analysed using linear mixed models with repeated measures.

Results: Strength values (mean ± SD) were: adduction = 3.0 ± 0.6 Nm/kg, abduction = 2.6 ± 0.4 Nm/kg, adduction/abduction ratio = 1.2 ± 0.2, Squeeze test = 3.6 ± 0.8 N/kg. Range of motion values: internal rotation in flexion = 32 ± 8°, external rotation = 38 ± 8°, internal rotation in prone = 38 ± 8°, bent knee fall out = 13 ± 4.4 cm, abduction in side-lying = 50 ± 7.3°. Leg dominance had no clinically relevant effect on these profiles. Multivariate analysis demonstrated that age had a minor influence on squeeze strength (−0.03 N/kg/year), external rotation (−0.30°/year) and abduction range (−0.19°/year) but past history of injury, and ethnicity did not.

Conclusions: Normal values are documented for hip strength and range of motion that can be used as reference profiles in the clinical assessment, screening, and management of professional football players. Leg dominance, recent past injury history and ethnicity do not need to be accounted for when using these profiles for comparison purposes.
Keyword Flexibility
Groin
Injury
Soccer
Sports
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Health and Rehabilitation Sciences Publications
 
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