HighlightsSeveral ADLs in healthy individuals had larger joint angles than walking, climbing stairs, and standing up.Large joint angles in healthy individuals occurred at the hip and knee joints during trunk rotation, during crouching, and getting out of the bath.Adduction and internal rotation occurred simultaneously in few healthy individuals during maximum flexion of the hip in the measured tasks.

These results should be useful in setting goals for the treatment of upper extremity joint functions in the fields of rehabilitation, orthopedics, and sports medicine.

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.

Purpose] In this study, we compared muscle activities in one foot bridging motion with those in hip abduction motion to examine its effectiveness.[Subjects] The subjects were twelve healthy adults with a mean age of 21.2 years.[Methods] The subjects were requested to perform isometric shrinkage for hip abduction with changes of load (0%, 2%, 4%, and 6% of body weight) and range of hip abduction (0, 10, and 20) and bridging on one foot. Electromyography (EMG) of the gluteus medius, gluteus maximus, tensor fasciae latae were measured in the motor task.[Results] There was no difference in EMG between one foot bridging motion and hip abduction motion.[Conclusion] These results suggest that the one foot bridging motion is effective for muscle strengthening.