Kinetics of standing broad and vertical jumping.
Kinetics of standing broad and vertical jumping.
复制标题
站立和垂直跳跃的动力学。
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
D. Fleming
中科院分区：
文献类型：
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作者：
Robertson Dg;D. Fleming
本研究的目的是确定腿部肌肉群对站立跳远和垂直跳跃所做的外部机械功的贡献。六名受试者被拍摄到从力台上跳下。使用链接段分析和逆动力学方法来计算肌肉力矩以及由这些力矩产生的功率和功输出。结果支持这样的原理：在两种类型的跳跃中，所有三个伸肌力矩总和，但收缩的顺序并非如连续性原理所述从近端肌肉到远端。相反，所有三个伸肌力矩同时作用以产生腿部伸展。对于两种类型的跳跃，三个肌肉群做出的贡献并不相同。对于立定跳远的推进阶段，髋部、膝部和踝部肌肉的贡献分别为45.9%、3.9%和50.2%，而对于立定跳远的推进阶段，髋部、膝部和踝部肌肉的贡献分别为40.0%、24.2%和35.8%。这些结果表明，跳远对肌肉群的利用与垂直跳跃不同，并显示了臀部和脚踝肌肉组织在跳跃中产生外部功的重要性。
The purpose of this study was to determine the contributions made by the leg muscle groups to the external mechanical work done in standing broad and vertical jumping. Six subjects were filmed jumping from a force platform. Linked-segment analysis and inverse dynamics methods were used to compute the muscle moments of force and power and work output created by these moments of force. Results support the principle that all three extensor moments of force summate in both types of jumping but that the sequence of contractions was not from proximal muscles to distal as is stated by the continuity principle. Instead all three extensor moments act simultaneously to produce leg extension. The contributions made by the three muscle groups were not the same for the two types of jumps. For the propulsive phase of the standing broad jump the contributions of the hip, knee, and ankle muscles were 45.9%, 3.9%, and 50.2%, respectively, whereas, for the vertical jump the contributions were 40.0%, 24.2%, and 35.8%, respectively. These results indicate that broad jumping utilizes the muscle groups differently than vertical jumping and show the importance of the hip and ankle musculature in the production of external work in jumping.