基于传感器和方程的坐立能力:年龄和功能限制的影响
Lien Meulemans1, Julian Alcazar2, Luis M Alegre2
1Physical Activity, Sports & Health Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium.
Experimental gerontology
|July 15, 2023
概括
使用坐立测试 (STS) 估计下肢肌肉力量是可行的. 年龄和功能限制影响运动策略和力量,公式与功能良好成年人的传感器估计略有差异.
科学领域:
- 生物力学 生物力学
- 老年学是一门学科.
- 运动学 运动学
背景情况:
- 在坐立测试 (STS) 中估计下肢肌肉力量对于评估功能能力至关重要.
- 了解年龄,性别和功能限制如何影响运动策略和功率输出对于有针对性的干预至关重要.
- 从数学公式与基于传感器的测量对比功率估计,可以了解不同方法的准确性和适用性.
研究的目的:
- 调查年龄,功能限制和性别对STS运动策略和动力生产的影响.
- 为了比较使用简单的数学方程式与固定在身体上的传感器估计的坐站 (STS) 肌肉功率.
- 分析不同年龄组和功能水平的运动策略和力量估计的差异.
主要方法:
- 从649名参与者 (年龄在19-93岁之间) 收集了五次重复的STS数据.
- 使用固定在身体上的传感器来测量运动持续时间,干部运动 (屈曲/延伸) 和肌肉力量 (P_sensor).
- 用经过验证的数学方程 (P_formula) 进行比较,计算出STS肌肉力量的平均值.
主要成果:
- 与年轻人和男性相比,老年人和女性在STS期间表现出更大的干部曲.
- 在STS过渡期间,功能良好的成年人表现出不完整的干部延伸的趋势.
- 随着年龄的增长,STS肌肉力量下降,女性和行动能力有限的个体更低;P_formula与P_sensor高度相关 (ICC=0.902),但在功能良好的成年人中显示出比P_sensor更高的值.
结论:
- 年龄和功能限制在STS测试期间显著影响运动策略.
- 运动策略的差异,例如不完整的车延伸,可能会影响公式衍生和传感器测量的STS功率之间的比较.
- 数学公式提供了STS功率的可靠估计,尽管由于运动策略的变化,功能良好的人可能需要进行调整.
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