相关实验视频
Updated: Jul 1, 2026

07:51
Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
Published on: March 14, 2017
16.7K
三种商业设备的有效性 记录在保加利亚分裂坐运动中的运动速度
Zhili Chen1, Kaifang Liao1,2, Chris Bishop3
1School of Athletic Performance, Shanghai University of Sport, Shanghai, China.
Journal of human kinetics
|February 13, 2025
概括
在单边练习时,GymAware准确地测量了平均速度 (MV) 和峰值速度 (PV). 这项研究验证了GymAware与Vicon的对比,表明它是基于速度的训练的可靠替代方案.
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) 对于监测阻力运动强度至关重要.
- 精确测量运动速度对于有效的VBT至关重要.
- 商业设备提供了可访问的速度跟踪的潜力,但它们的有效性需要严格的评估.
研究的目的:
- 评估三种商业设备 (GymAware,PUSH,My Lift) 的同时有效性,用于测量平均速度 (MV) 和峰值速度 (PV).
- 为了比较这些设备的准确性与标准测量 (Vicon运动捕捉) 在单边阻力练习期间.
- 为了确定任何设备是否适合在保加利亚分裂 squats期间记录速度的替代方案.
主要方法:
- 十八名健康的力量训练的男性在保加利亚分中以40-90%的最大一次重复率进行了保加利亚分.
- MV和PV同时使用GymAware,PUSH,My Lift和Vicon运动捕捉进行录制.
- 使用线性混合模型,平均差异 (MD),平均绝对误差 (MAE) 和Hedge的g效应大小来分析并发有效性.
主要成果:
- 与Vicon相比,GymAware证明了对MV和PV的有效性,与Vicon相比,平均差异和错误很小.
- 对于MV和PV,GymAware,PUSH,My Lift和Vicon之间发现了显著的差异 (p < 0.01).
- 与Vicon相比,PUSH和My Lift显示出更大的MD和MAE,与Vicon相比,效果大小微不足道到中等.
结论:
- GymAware是一个有效的工具,用于记录MV和PV在单方面抵抗练习期间.
- 与GymAware相比,PUSH和My Lift设备在评估这些运动中的速度时表现出较低的有效性.
- GymAware 提供了一个可行且潜在的成本效益高的替代方案,用于阻力训练设置中的速度监测.
相关概念视频
Production Efficiency
Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
Mechanical Efficiency of Real Machines
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...
Relative Motion Analysis - Acceleration
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
Multimachine Stability
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:

