Development of swim-start technique on starting block with a back plate.

通过对游泳运动员在带背板的出发台上出发的前、后腿和手的运动分析和测力，研究了游泳运动员在带背板的出发台上的出发动作。成年男子竞技游泳运动员参加了这项研究。研究结果表明：后腿产生水平起跳速度和头沉力矩，前腿产生反重力力，手对水平起跳速度和头沉力矩的直接贡献很小。

A swimming start motion on a starting block with a back plate was investigated by motion analysis and force measurements of front-leg, rear-leg and hands. Adult male competitive swimmers participated in this study. The findings based on this study were as follows ; Rear-legs contributes the generation of horizontal take-off velocity and head-sinking moment, front-legs force generation acts against gravity and the direct contributions of horizontal velocity and head-sinking moment by hands are small.