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Hip abductor isometric strength in subjects with and without chronic ankle instability
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Delhaise_Robin_28081400Pierre_Benjamin_10521400_2017-2018.pdf
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- Objectives : To assess the strength of the hip abductor muscles of people with and without Chronic Ankle Instability (CAI) in order to determine if there is a difference in maximal strength of this group of muscles. Design : Cross sectional study, case control study. Methods : The subjects taking part in the study were 25 people with CAI and 25 healthy people, the control group. The maximal isometric strength of hip abductors was assessed for both legs (one at a time) in a standardized position (supine) with a Hand-Held Dynamometer, placed 5 cm above the lateral malleolus. The subjects were stabilized with belts. There were four comparisons: CAI and control groups, CAI males and control males groups, CAI females and control females groups, CAI leg and control leg (or significant less CAI leg, measured on the same subject). Results : The statistical analysis with a t-test or a Mann-Whitney test revealed there is no significant difference in all comparisons. Discussion : The procedures were justified and reliable but the study has some limitations (subject's state, tester's strength, subjectivity of the groups,…) that could have influenced the results, these have to be interpreted with caution. Conclusions: More studies are needed on this topic with strategies to avoid the bias that could occur. Key words : Chronic Ankle Instability, Hip abductor strength, Hand-Held Dynamometer.