BODY SEGMENT AND RELEASE PARAMETER CONTRIBUTIONS TO NEW-RULES JAVELIN THROWING
BODY SEGMENT AND RELEASE PARAMETER CONTRIBUTIONS TO NEW-RULES JAVELIN THROWING
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DOI：
10.1123/ijsb.7.2.111
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发表时间：
1991-05-01
期刊：
影响因子：
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通讯作者：
HALUSHKA, M
中科院分区：
文献类型：
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作者：
WHITING, WC;GREGOR, RJ;HALUSHKA, M
在两年的时间里，八名男子标枪运动员在五次比赛中投掷新规则标枪时被拍摄下来。 身体部分的运动学和标枪释放参数进行了评估，相对于他们的贡献投掷性能。 这些数据表明，成功的投掷，作为判断投掷距离，其特征在于较高的释放速度，较长的最后一步的长度，在最后的植物阶段前腿膝关节屈曲较少，和一个有序的进展，在臀部，肩膀和肘部的峰值速度从双腿支撑的开始，直到释放。 表现的个体差异与几个投掷变量之间的差异有关。 二维分析固有的局限性，突出了标枪投掷的三维调查的必要性。
Eight male javelin throwers were filmed while throwing new-rules javelins during competition at five meets over a 2-year period. Body segment kinematics and javelin release parameters were assessed relative to their contribution to throwing performance. The data suggest that successful throws, as judged by distance thrown, are characterized by higher release speeds, longer last-step lengths, less flexion of the front-leg knee during the final plant phase, and an orderly progression of peak speeds at the hip, shoulder, and elbow from the onset of double leg support until release. Individual variability in performance was associated with differences measured between several throwing variables. Limitations inherent to two-dimensional analysis were identified that highlighted the need for three-dimensional investigation of the javelin throw.