Clarification of the stroke technique for improvement of swimming performance

本研究旨在探讨爬泳高肘技术与游泳成绩之关系。在25米前爬泳过程中，以60 Hz的频率三维（3-D）捕捉受试者的手臂划水运动。结果，受试者通过诱导肩部的内旋角速度来保持高肘位置。因此，保持高肘位，肩关节的内旋运动对爬泳的成绩有重要的影响。此外，在中风运动过程中的肌肉活动进行了研究，通过使用肌电图（肌电图）。

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).