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商用移动应用程序的验证,用于基于速度的阻力训练
Danielle Anne Trowell1, Angus G Carruthers Collins1, Ashlee M Hendy2
1Centre for Sport Research, Institute for Physical Activity and Nutrition, Deakin University, Burwood, Victoria, Australia.
PeerJ
|July 29, 2024
概括
这项研究发现,基于速度的训练 (VBT) 的移动应用程序Metric VBT,在铁杆运动范围和速度测量时存在准确性问题. 虽然它可靠地计算重复次数,但其对性能指标的精度在实际使用中是可疑的.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 基于速度的训练 (VBT) 是阻力训练编程和自我调节的组成部分.
- 训练期间的速度测量可以估计一次重复的最大值,并监测疲劳.
- 这项研究评估了Metric VBT,这是一款利用摄像头视觉来评估杆运动范围 (RoM) 和平均速度的移动应用程序.
研究的目的:
- 为了量化Metric VBT移动应用程序的有效性.
- 将Metric VBT的测量与Vicon运动分析系统进行比较.
- 通过Metric VBT.评估铁杆RoM和平均速度测量的准确性.
主要方法:
- 24名参与者在各种负载下进行了背和长椅压力.
- 与参与者相比,五个移动设备被放置在不同的角度 (0, ±10, ±20°).
- 使用精确度,回忆,林的一致性相关系数,布兰德-阿尔特曼图形和比例偏差的线性回归来确定有效性.
主要成果:
- 度量VBT在重复检测方面实现了超过95%的准确性.
- 与Vicon相比,在RoM测量方面发现了中等到实质性的协议 (LoA: -5.45到4.94厘米的, -5.80到3.55厘米的长椅压力).
- 对于平均速度 (LoA:0.03到0.25 m/s用于, -0.12到0.16 m/s用于长椅压力) 观察到差到中等的一致性,在更高的速度上增加比例偏差.
结论:
- 度量VBT显示了对RoM和平均速度的显著准确性问题,广泛的协议限制超过了实际可用性.
- 该应用程序的实用性对于需要精确性能数据的用户来说是有限的.
- 通过重复计数来跟踪炼量,VBT指标可能仍然是有价值的.
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