Evaluation of muscle activity in lower limbs during repeated flexion and extension movements using Force Myography measurement

Abstract

Evaluations of muscle activities are important in the studies of motion analysis as human performance surveys. Force-myography (FMG), which has proposed as a similar objective to electromyography (EMG), has been applied in motion analysis focusing on the muscular activities. In this study, the usefulness of FMG for physical load measurements in repeated self-weight training was investigated in comparison with EMG. The muscle activities of the right rectus femoris were measured by each method when the subjects performed several patterns of squat motions. It was found that the intensity of muscle activity increased with increasing the load. In addition, when using the pressure sensing FMG devices, the effect of pumping up due to overuse of muscles was also found during the squat motion. By using FMG measurements, there is a possibility to evaluate conveniently the muscle activity during bodyweight training.