Clarification of the stroke technique for improvement of swimming performance

本研究旨在探讨爬泳前高肘技术与游泳成绩的关系。在25米爬泳过程中，以60赫兹的频率三维捕捉受试者的手臂划水动作。结果，受试者通过诱导肩部的旋转间角速度来保持肘部的高位。因此，为了保持肘部的高位置，肩部的内旋运动对前爬泳的成绩至关重要。此外，还利用肌电(EMG)研究了中风运动过程中的肌肉活动。

This study aims to investigate that relationship between high elbow technique and swimming performance in front crawl swimming. The arm stroke motions of subjects were captured three-dimensionally (3-D) at 60 Hz during 25 m front crawl swimming. As a result, the subjects were maintaining high elbow position by inducing the inter rotation angular velocity of the shoulder. Therefore, to maintain high elbow position, the inter rotation motion of the shoulder will be important for performance in front crawl swimming. Moreover, muscle activity during stroke motion was studied by use of EMG (electromyogram).