Leg Dominance Effect on Isokinetic Muscle Strength of Hip Joint

Abstract Objective The purpose of this study was to compare the isokinetic strength of hip muscles in dominant vs nondominant legs in healthy adults. Methods Thirty-two healthy college students (15 male and 17 female) volunteered to participate in this study. A Biodex system 3 was used to measure isokinetic peak torque at an angular velocity of 60°/s for the hip flexors, extensors, abductors, and adductors in both dominant and nondominant legs. Hip flexors and extensors were tested from the supine lying position while hip abductors and adductors were tested from the side lying position using concentric mode of muscle contraction. Results There were no statistically significant differences between the dominant and nondominant sides for all tested hip muscles. Conclusion Leg dominance does not appear to affect hip muscle strength in healthy adults. This may be used as normative data for those with differences in muscle strength between involved and uninvolved sides.