Abstract
The purpose of this study was to determine a relationship between hip abductor and adductor muscle force output measured isokinetically in normal adult subjects. Bilateral testing of 42 normal subjects ages 21−36(n=84) was performed isokinetically (MERAC) in a −5 deg to 35 deg range of motion (ROM) at 60 deg/sec. Subjects were positioned on the test bench lying on their side with test limb up, knee extended, and leg in neutral rotation. The mean peak abductor: adductor torque output ratio was 1 : 2.30 (0.44) for the total sample. As motion occurred in the coronal plane, a statistically significant change in mean abductor: adductor torque ratio was determined in the test sample. A statistically significant positive correlation between hip abductor and adductor muscle force output existed through motion in the coronal plane between 0 to −30. Because two-thirds of the test sample was composed of females, these results may be less applicable to male clients and generalization may also be limited due to specific instrumentation.