在青年运动员中,手持子负荷对反运动跳跃时的力-时间特征的影响,具有突出异常负荷的跳跃
Thomas E Bright1,2, Jason Lake3, Matthew J Handford4
1Youth Physical Development Centre, Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK.
Sports biomechanics
|February 20, 2026
概括
在反运动跳跃 (CMJAEL) 中添加手持子负载,可以增加跳跃高度. 力量的产生被延长,以达到更高的高度,在20%的体重负荷下获得最佳结果.
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) 是爆炸力的一个基本指标.
- 突出异常加载阶段 (AEL) 可能会提高跳跃性能.
- 了解外部负荷对跳跃机制的影响对于训练优化至关重要.
研究的目的:
- 为了研究手持子负载在反运动跳跃时与突出偏心负载 (CMJAEL) 时对力-时间特征的影响.
- 量化跳跃高度,推进和制动阶段的变化,使用不同的AEL.
- 分析青年运动员的负载,力生产和跳跃表现之间的关系.
主要方法:
- 十九名青少年运动员进行了体重CMJ (CMJBW) 和CMJAEL,其中20% (CMJAEL20) 和30% (CMJAEL30) 的体重负荷.
- 使用前向和后向集成测量和分析了垂直地面反应力 (vGRF).
- 计算了关键的力-时间变量,包括跳跃高度,推进时间,平均vGRF,平均速度和功率.
主要成果:
- 与CMJBW相比,CMJAEL条件中的跳跃高度显著增加,CMJAEL20的最大增加.
- 推进时间随着负载的增加而延长,而平均vGRF下降,表明力量在更长的时间内被应用.
- 推进平均速度和功率在CMJAEL20有所改善,但对CMJAEL30的结果不确定. 车阶段反应不一致.
结论:
- 使用手持式子突出突出突出的负载可以急剧增强青年运动员的反运动跳跃高度.
- 在AEL下增加跳跃高度是通过延长力应用来实现的,并观察到特定的速度和功率适应.
- 力量时间特征,包括相位持续时间和速度,为使用AEL的性能增强策略提供了宝贵的见解.
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