Relationship between Gait Velocity and Integrated EMG of the flip Abductor

Abstract

The purpose of this study was to clarify the relationship between gait velocity and muscle power of hip abductor. The subjects are 10 females without any hip disease.
During EMG recording from hip abductor, the subjects walked at the speed range from 2.5 km/h to 5.0 km/h on the treadmill. Hip abductor EMG and torque were recorded, while the subjects were spread out their hip with a maximal effort on the bed at prone position. Muscle forces at each speed were speculated from the ratio of the integrated EMG (IEMG) during walking to the IEMG during maximal voluntary contraction. Comparing averages of speculated muscle force at each speed by the two way analysis of variance (ANOVA), all of the results were not significant.
It will be supposed that variability of the speed during free walking may not influence the hip abductor muscle force and IEMG.