Sport Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand.
School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand.
Sci Rep. 2023 May 2;13(1):7152. doi: 10.1038/s41598-023-34416-0.
This study examined the reproducibility of GymAware, PUSH2 and Vmaxpro velocity monitoring devices during resistance training (RT). The sensitivity of these devices to detect the smallest changes in velocity that correspond to true changes in RT performance was also investigated. Fifty-one resistance-trained men and women performed an incremental loading (1RM) test, and two repetitions to failure tests with different loads, 72 h apart. During all repetitions, mean velocity (MV) and peak velocity (PV) were simultaneously recorded by two devices of each brand. Overall, GymAware was the most reliable and sensitive device for detecting the smallest changes in RT performance, regardless of the velocity metric used. Vmaxpro can be considered as an equivalent, cheaper alternative to GymAware for RT monitoring and prescription, but only if the MV metric is used. Caution should be exercised when using PUSH2 in practice due to their comparatively higher, unacceptable measurement error and generally low sensitivity to detect changes in RT performance. Collectively, these findings support the use of MV and PV from GymAware and MV from Vmaxpro devices for RT monitoring and prescription due to their low magnitudes of error; thus, allowing for the detection of meaningful changes in neuromuscular status and functional performance during RT.
本研究旨在检验 GymAware、PUSH2 和 Vmaxpro 速度监测器在抗阻训练（RT）中的重现性。还研究了这些设备检测与 RT 性能实际变化相对应的速度最小变化的灵敏度。51 名经过抗阻训练的男性和女性进行了递增负荷（1RM）测试和两次不同负荷的至力竭测试，两次测试间隔 72 小时。在所有重复中，两种品牌的两种设备同时记录平均速度（MV）和峰值速度（PV）。总的来说，GymAware 是检测 RT 性能最小变化最可靠和最敏感的设备，无论使用哪种速度指标。如果使用 MV 指标，Vmaxpro 可以被认为是 GymAware 的一种更便宜的等效替代物，用于 RT 监测和处方，但只能使用 MV 指标。由于其较高的、不可接受的测量误差和检测 RT 性能变化的一般低灵敏度，在实践中使用 PUSH2 时应谨慎。总的来说，这些发现支持使用 GymAware 的 MV 和 PV 以及 Vmaxpro 设备的 MV 进行 RT 监测和处方，因为它们的误差幅度较小；因此，允许在 RT 期间检测神经肌肉状态和功能性能的有意义变化。
