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一种基于冲动的新方法的有效性和可靠性,用于分析人类击球表现
Sherrilyn Walters1,2,3, Lester Walters3, Ben Hoffman1,4
1School of Health and Medical Sciences, University of Southern Queensland, Ipswich, Queensland, Australia.
Journal of sports sciences
|March 16, 2025
概括
新的Impulse Block方法准确地测量了打击性能,证明了在评估人类打击中的速度和动量等关键变量方面具有强大的有效性和可靠性.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 人类绩效分析 人类绩效分析
背景情况:
- 准确评估人类击球表现对于体育科学和生物力学研究至关重要.
- 现有的方法可能缺乏全面的测量能力或可靠性有限.
- 需要一种新的,经过验证和可靠的方法来量化突出的动态.
研究的目的:
- 为了评估冲击阻断方法对人类打击性能的标准有效性.
- 为了确定Impulse Block方法对关键突出变量的日内和日间可靠性.
- 建立冲动块方法作为性能分析的可靠工具.
主要方法:
- 标准的有效性被评估使用掉落测试,比较预测和测量速度和初始动量通过线性回归和布兰德-阿尔特曼图.
- 十个健康的成年人在两个不同的场合对冲动块进行了手掌打击.
- 计算了冲动,初始动量,速度,有效质量,动能和功率的日内和日间可靠性.
主要成果:
- 实验1显示了强烈的线性关系和测量和预测速度和初始动量之间的高度一致.
- 实验2显示所有变量的日内变化系数范围为4.95-10.2%,日间变化系数范围为6.15-12.1%.
- 类内相关系数表明中等至优异的可靠性 (0.72-0.99在一天内,0.92-0.99在一天之间).
结论:
- 冲击阻断方法是分析冲击性能的一种有效和可靠的工具.
- 该方法准确量化了诸如冲动,动量,速度和功率等变量.
- 研究结果支持其用于研究和应用环境中的目标精确,垂直的线性打击.
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