训练改变了在国家橄球联盟选秀准备球员比赛期间的联合权力分配
G Monique Mokha1, Marissa Bonsangue1, ToniAnn Brezina1
1Exercise and Sport Science, Nova Southeastern University, Fort Lauderdale, FL, USA.
Sports biomechanics
|May 2, 2025
概括
美国足球运动员在经过6周的NFL选秀准备营后提高了跑步效率. 训练适应导致脚的能量吸收减少,下肢关节的能量利用更有效.
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:
- 美国足球运动员经历了强烈的训练营,以提高表现.
- 了解下肢关节的动力动态对于优化运行经济和预防伤害至关重要.
- 之前的研究已经探索了运动期间的关节动力,但在NFL选秀准备期间的特定适应需要进一步调查.
研究的目的:
- 为了比较美国足球运动员在6周的NFL选秀准备营前和之后在快速运行期间对下肢关节总功率的关节特异性贡献.
- 为了识别部,膝盖和脚关节发电和吸收功率的变化.
- 调查联合功率贡献的潜在变化及其与运行效率的关系.
主要方法:
- 52名美国足球运动员在6周的训练营前后以5.5-6.5米/秒的速度进行了5秒的跑步机跑步.
- 双边部,膝盖和脚运动和动力学被捕获使用运动分析和力盘.
- 使用逆动力学计算来确定关节特定的正 (产生) 和负 (吸收) 功率.
主要成果:
- 负总下肢功率双边下降,对左肢显著下降,这是由于脚负功率下降所致.
- 负左部功率的贡献显著增加.
- 观察到联合功率贡献的总体偏向近距离转移,表明运动策略发生了变化.
结论:
- 美国足球运动员在经历了6周的NFL选秀准备营后,在下肢关节力量方面表现出适应性.
- 这些适应包括减少脚的能量吸收和更多地依赖近接关节,这表明了更节能的跑步策略.
- 这些发现凸显了有针对性的培训在修改生物机械模式以改善运行经济方面的有效性.
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