4 頭位および体位の側方傾斜に伴うヒトの外側翼突筋下頭筋電図の応答 (例会抄録(第430回))

抄録

To clarify the mechanism controlling human mandibular position as a function of lateral inclination of the head and body, I carried out electromyographic investigations of the muscle activities of the inferior head of the lateral pterygoid muscle under different postures with respect to the frontal plane. When the head leaned left or right, the lower jaw was displaced towards the inclination, and muscle activities on the ipsilateral side increased. These results indicate that reflection muscle activities have some control over the displaced condyle.