The development of aid to get rational movement for elementary school kids.

摘要本研究旨在探讨助跑器对短跑运动员获得合理短跑动作的影响。研究对象为国小学童66人（男38人，女28人）。帮助获得一个合理的短跑运动是切碎固定到大腿凉鞋与哨子为儿童。实验方案如下：在第一课和第三课测量50 m短跑速度，在第二课练习程序，以获得合理的短跑动作。主要研究结果如下：1）在30 m-40 m的短跑速度和步频上，“前”组显著高于“后”组。2)摆动腿时膝关节屈曲角度“前后”无显著性差异。但受试者在“预”时膝关节屈曲角较大，有变小的趋势。这些结果表明，本研究开发的辅助器是获得合理短跑动作的有效辅助器。

The purpose of this study was to investigate the effect of aid to get a rational sprinting movement. The subjects were elementary school kids 66 (boy : 38, girl : 28). The aid to get a rational sprinting movement is chopped to fix to the thigh sandal with whistle for children. The experimental protocol was follow ; at first class and third class 50m sprinting speed was measured and at second class we were practiced the program used aid to get a rational sprinting movement. Main results were follows ; 1) in the sprinting velocity and step frequency at 30m-40m "pre" is higher than "post" significantly. 2) there was not significantly difference between "pre" and "post" in knee joint flexion angle at swing leg. But subjects show bigger knee joint flexion angle at "pre" tend to become small. These results suggest that the aid developed by this study is effective aid to get rational sprinting movement.