便携式动力表在评估部强度和扭矩发展速度方面的有效性和协议:固定方法的影响
Sungwan Kim1, Takhyun Yoo1, Julie P Burland1
1Kinesiology University of Connecticut.
International journal of sports physical therapy
|April 4, 2025
概括
便携式动力计 (PD) 适用于评估部强度和扭矩发展速度 (RTD). 虽然PDpull方法显示出比PDpush更强的有效性,但绝对值与异动力学动力计 (IKD) 不同.
科学领域:
- 生物力学 生物力学
- 运动学 运动学
- 运动科学 运动科学 运动科学
背景情况:
- 便携式动力计 (PD) 常用于评估部肌肉力量.
- 关于PD对部肌肉扭矩发展速度 (RTD) 的有效性和一致性的研究有限,特别是在各种固定方法中.
研究的目的:
- 为了确定同度部强度和RTD的有效性和一致性,使用PD与两种固定方法 (PDpush和PDpull) 与异动力动力计 (IKD) 相比.
- 假设PD对于部强度和RTD评估是有效的,PDpull显示出比PDpush更强的有效性,PD评估将产生比IKD更高的值.
主要方法:
- 一项涉及20名健康,身体活跃的个体 (10名男性,10名女性) 的横截面研究.
- 使用PDpush,PDpull和IKD评估部绑架和延伸强度 (峰值扭矩) 和RTD (早期:0-100毫秒,晚期:100-200毫秒).
主要成果:
- 对于部强度和RTD,在PD (两种方法) 和IKD之间观察到中度至强度的相关性 (r=0.46-0.73).
- PDpull 显示了特定的部绑架 RTD 和部延伸强度/RTD 措施的强相关性 (r=0.70-0.73).
- PDpush显示中等相关性 (r=0.45-0.58),Bland-Altman分析表明PDpush高估了与IKD相比的强度和RTD,而PDpull对RTD有不同的结果.
结论:
- 便携式动力计是评估部强度和RTD的有效工具.
- 与PDpush相比,PDpull固定方法对于特定的部强度和RTD测量具有更强的有效性.
- 虽然PD证明了有效性,但它的绝对测量并不完全符合从IKD获得的测量结果.
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