五种方法的比较,以在运行过程中使关节时刻正常化
Bas Van Hooren1, Steven M Hirsch2, Kenneth Meijer1
1NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Department of Nutrition and Movement Sciences, Maastricht, the Netherlands.
在跑步者中规范净联合时刻 (NJM) 需要仔细考虑缩放方法. 按质量,质量*高度和质量*腿长度进行缩放似乎最适合膝盖和关节的时刻,但研究人员必须验证假设才能得出有效的结论.
科学领域:
- 生物力学 生物力学
- 人类运动分析分析
- 运动科学 运动科学
背景情况:
- 净关节时刻 (NJM) 通常使用物理特征如质量和高度来比较个体进行规范化.
- 对NJM的比例缩放要求遵守有效解释的四个关键假设.
- 这些假设包括线性,原始传递回归,最小的分布变化和取消相关性.
研究的目的:
- 评估不同比率缩放方法的有效性,以使跑步者中的NJM正常化.
- 为了确定哪些缩放变量最能满足NJM规范化的统计假设.
主要方法:
- 分析了59名以10公里/小时的速度跑步者的数据.
- 标准的反向动力学被用来计算斜腰平面部,膝盖和脚NJM.
- 使用参与者的体重,身高,腿长和其组合计算比例.
主要成果:
- 没有一个单一的缩放变量满足了所有关节的所有假设.
- 按质量,质量*高度和质量*腿长度进行缩放,满足了膝关节关节矩的假设.
- 这些方法还满足了对日志转化关节运动时的假设.
结论:
- 建议根据质量,质量*高度和质量*腿长度进行缩放,以使NJM运行正常化.
- 敦促研究人员在得出结论之前验证统计假设.
- 提供了补充工具,以帮助验证假设,并讨论扩展后果.
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