Comparison of isokinetic hip abduction and adduction peak torques and ratio between sexes

Sugimoto, Dai, Mattacola, Carl G., Mullineaux, David R. , Palmer, Thomas G. and Hewett, Timothy E. (2014) Comparison of isokinetic hip abduction and adduction peak torques and ratio between sexes. Clinical Journal of Sport Medicine, 24 (5). pp. 422-428. ISSN 1050-642X

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Abstract

Objective: To evaluate hip abductor and adductor peak torque outputs and compare their ratios between sexes.

Design: A cross-sectional laboratory-controlled study.

Setting: Participants visited a laboratory and performed an isokinetic hip abductor and adductor test. All participants performed 2 sets of 5 repetitions of concentric hip abduction and adduction in a standing position at 60 degrees per second. Gravity was determined as a function of joint angle relative to the horizontal plane and was corrected by normalizing the weight of the limb on an individual basis.

Participants: A total of 36 collegiate athletes.

Independent Variables: Sex (20 females and 16 males).

Main Outcome Measures: Bilateral peak hip abductor and adductor torques were measured. The 3 highest peak torque values were averaged for each subject.

Results: Independent t tests were used to compare sex differences in hip abductor and adductor peak torques and the abductor:adductor peak torque ratios. Males demonstrated significantly greater hip abductor peak torque compared with females (males 1.29 ± 0.24 Nm/kg, females 1.13 ± 0.20 Nm/kg; P = 0.03). Neither hip adductor peak torque nor their ratios differed between sexes.

Conclusions: Sex differences in hip abductor strength were observed. The role of weaker hip abductors in females deserves further attention and may be a factor for higher risk of knee pathologies.

Keywords:Hip abduction, NotOAChecked
Subjects:C Biological Sciences > C600 Sports Science
Divisions:College of Social Science > School of Sport and Exercise Science
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ID Code:16669
Deposited On:10 Feb 2015 12:15

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