在使用机动电阻装置的方向变化测试中,相位特异结果测量的可靠性
Frederic Westheim1, Øyvind Gløersen1, Damian Harper2
1Biomechanics Laboratory, Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway.
Frontiers in sports and active living
|November 8, 2023
概括
这项研究证实,机动电阻装置 (MRD) 为方向变化 (CoD) 测试提供可靠的相位特异性数据. 这支持高级培训和研究Cod能力.
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:
- 在许多体育运动中,改变方向 (CoD) 的能力至关重要.
- 在COD期间精确测量相位特异性动力学和动力学对于性能分析和训练至关重要.
- 现有的方法在捕获详细的特定阶段性能指标方面可能缺乏可靠性.
研究的目的:
- 在各种方向变化 (CoD) 测试中评估相位特异性动力学和动力学数据的测试-重试可靠性.
- 在外部负载下使用电动电阻装置 (MRD) 获得的测量结果的可靠性.
- 为了确定初始加速,减速和再加速阶段在CoD性能中的可靠性.
主要方法:
- 21名参与者通过MRD完成了经过修改的505,10-0-5和15-0-5 CoD测试,通过MRD通过3kg的外部负荷完成了四个会话.
- 收集了相位特定的动力 (力,功率,冲动) 和动力学 (时间,距离,速度,加速/减速) 数据.
- 使用类内相关系数 (ICC),变化系数 (CV),典型误差 (TE) 和最小可检测变化 (MDC) 来量化可靠性.
主要成果:
- 大多数结果变量表现出良好的至优秀的相对可靠性 (ICC ≥ 0.75) 和可接受的至良好的绝对可靠性 (CV < 10%).
- 具体来说,80.1%的变量显示出良好的或更好的相对可靠性,97.0%显示出可接受的或更好的绝对可靠性.
- 在不同COD测试中,MRD产生了可靠的相位特定测量.
结论:
- 电动电阻装置 (MRD) 为各种方向变化 (CoD) 测试提供可靠的相位特定结果测量.
- 这些发现为教练和研究人员提供了新的途径,以提高对CoD培训的理解和处方.
- MRD是一个可行的工具,用于详细分析CoD运动中的加速,减速和再加速阶段.
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