从反动的力量-时间曲线中识别一致的指标 跳跃在战斗中的战斗人员和身体活跃的男性
Alexandre R P Ferreira1, Victor O C Macedo1, Daniel Boullosa2
1College of Physical Education, University of Brasília, Brasília, DF, BRAZIL.
International journal of exercise science
|August 31, 2023
概括
战斗战士和活跃男子在反运动跳跃 (CMJ) 的制动和推进阶段表现出更一致的跳跃表现. 与跳跃输出相关的力量时间指标比与跳跃策略相关的指标更可靠.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 反运动跳跃 (CMJ) 是一种常见的爆炸力测量方法.
- 评估CMJ力-时间曲线指标的可靠性对于运动员的表现监测至关重要.
- 战斗战士和身体活跃的人有不同的生理需求,可能会影响跳跃性能的一致性.
研究的目的:
- 调查不同CMJ阶段 (减重,制动,推进,降落) 的16个力-时间曲线指标的日间一致性.
- 为了比较这些指标的可靠性,作战战士和身体活跃的男性.
- 在这些人群中确定一致的CMJ指标以进行可靠的绩效评估.
主要方法:
- 21名战斗机和21名身体活跃的男子在三个单独的测试日内进行了最大CMJ.
- 记录了力-时间数据,并分析了每个CMJ阶段的16个指标 (峰值/平均地面反应力,冲动,持续时间).
- 使用类内相关系数 (ICC ≥0.75) 和典型误差 (CVTE ≤10%) 来确定度量的一致性.
主要成果:
- 制动和推进阶段显示出比减重阶段更高的度量一致性.
- 战斗机在制动和推进地面反应力 (GRF) 和推进冲动方面显示出一致的指标.
- 身体活跃的男性表现出一致的推进冲动;一致性通常从第1-2天到第2-3天得到改善.
结论:
- 反映跳跃输出 (例如,GRF,冲动) 的力-时间指标比与跳跃策略 (例如,相位持续时间) 相关的更一致.
- 跳跃策略的变化可能解释了在某些CMJ阶段观察到的较低的一致性.
- 特定的力量-时间指标,特别是推进冲动,显示出对战斗机和身体活跃个体的可靠监测的希望.
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