- 著者
-
池田 幸司
藤本 将志
安井 重男
渡邊 裕文
大沼 俊博
赤松 圭介
鈴木 俊明
- 出版者
- 関西理学療法学会
- 雑誌
- 関西理学療法 (ISSN:13469606)
- 巻号頁・発行日
- vol.9, pp.83-88, 2009 (Released:2010-01-16)
- 参考文献数
- 3
- 被引用文献数
-
4
In the clinical field, we have provided physical therapy for cases presenting with Trendelenburg sign on walking caused by reduced muscle strength of the abductor muscle group of the hip joint on the weighted side. The Trendelenburg sign can occur in the early stage or after the middle stage of the stance phase, showing various patterns. In this study, we focused on the relationship between Trendelenburg sign occurring in the early stage or after the middle stage of the stance phase and the abductor muscle group of the hip joint on the weighted side. The subjects were asked to flex their hip joint and bend the body forward with 95% of the body weight loaded on one side of the body in an upright position, and remain in this position with the angle from the initial position at 5, 10, 15, 20, and 25 degrees. We evaluated the influence of changes in the angle of the hip joint on integration values of electromyograms of the abductor muscle group of the hip joint (the tensor fascia lata muscle, gluteus medius muscle, and superior part of the gluteus maximus muscle) on the weighted side, using surface electromyograms. As a result, the relative integration value of the electromyograms of the tensor fasciae lata muscle and gluteus medius muscle on the weighted side significantly decreased as the angle of the hip joint increased. On the other hand, the relative integration value of electromyograms of superior part of the gluteus maximus muscle on the weighted side significantly elevated as the angle of the hip joint increased. The hip joint on the weighted side underwent flexion, and was subjected to an abduction force, as the angle of hip joint changed when one of the lower extremities was loaded. It was considered that superior part of the gluteus maximus muscle, which also belongs to the extensor muscle group of the hip joint, was primarily involved as a braking force. The results of this study suggest that the evaluation and treatment of superior part of the gluteus maximus muscle is important in controlling the dropping of the pelvis toward the non-weighted side (adduction of the hip joint of the standing leg) and its anterior inclination (flexion of the hip joint of the standing leg) in cases presenting with Trendelenburg sign.