Biomechanical Study on the Ability of Super - isometric Contraction of Jumping Leg of Jumpers 跳高运动员起跳腿超等长收缩能力的生物力学研究
Foam-polystyrene is a kind of material with super light but enough strenght, its transfigure is very small with great load, It can be used to eliminate the effect of jumping out of head bridge by using it for stuffing material. 泡沫聚苯乙烯是一种超轻量又有足够强度的材料,在较大的荷载作用下,其变形量很小,用它作台后路堤填料可消除桥头跳车。