一側下肢への荷重量変化に伴う股関節周囲筋の筋活動変化

Abstract

In this study, we examined changes of electromyogram activity of hip muscles in simulating motion from double stance phase to single stance phase in walking. [Subjects] Nineteen healthy subjects with a mean age of 25.63 ± 1.86 years participated in this study. [Methods] The subjects were requested to adopt a load of 20%, 40%, 60%, 80%, 100% of body weight as on one leg a motor task. Electromyography (EMG) of M.Gluteus medius, M.Gluteus maximus, M.tensor fasciae latae, M.adductor was measured in the motor task. [Results] EMG of M.Gluteus medius and M.Gluteus maximus increased gradually with increasing load, and EMG of M.tensor fasciae latae of 100% load was higher than those of others. [Conclusion] These results suggest that the activities of M.Gluteus medius and M.Gluteus maximus are important in movement from double stance phase to single stance phase.