胃半径中间的力-长度关系的试验-重试可靠性
Adèle Mornas1, Enzo Hollville2, Franck Brocherie2
1French Institute of Sport (INSEP), Laboratory Sport, Expertise and Performance (EA 7370), Paris, France; University Paris Cité, Paris, France; Montreal Heart Institute, Montréal, QC, Canada.
Journal of biomechanics
|June 13, 2024
概括
超快超声波可靠地测量骨肌肉带的力量-长度关系. 关键参数如最优的束长度 (L0) 和最大力 (Fmax) 显示了可接受的测试-重新测试可靠性,特别是在多次测量的平均值时.
科学领域:
- 生物力学 生物力学
- 肌肉骨超声波 肌肉骨超声波
背景情况:
- 骨肌肉的束力-长度关系对于运动至关重要.
- 超快超声波成像正在出现,以评估这些属性.
- 超声波衍生法西克力-长度参数的试验-重试可靠性尚未得到充分确立.
研究的目的:
- 通过超快超声波来确定胃内中束力-长度关系的关键参数的测试-重新测试可靠性.
- 评估试验平均值对可靠性指标的影响.
主要方法:
- 利用超快的超声波成像来评估16名参与者的胃半径中间带力-长度关系.
- 在两个单独的测试会话中,在各种脚角度进行了电气引起的收缩.
- 关键参数,最大力 (Fmax) 和最佳束长 (L0),通过使用类内相关系数 (ICC) 和变化系数来分析可靠性.
主要成果:
- 最佳束长度 (L0) 显示了"高"到"非常高"的测试复试可靠性 (ICC = 0.89-0.91).
- 最大力 (Fmax) 表示"中等"可靠性 (ICC = 0.71-0.73).
- 每个脚角平均两次试验时,可靠性得到改善,变化系数低 (≤7.7%) 和标准测量误差.
结论:
- 对L0和Fmax的试验-重复试验可靠性是可以接受的,特别是在多次测量的平均值时.
- L0和Fmax适用于比较干预后的日常变化.
- 由于较高的可变性,对片操作长度的比较需要仔细考虑.
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