Department of Exercise and Rehabilitation Sciences, School of Health Sciences, Merrimack College, North Andover, Massachusetts.
J Strength Cond Res. 2021 Feb 1;35(Suppl 1):S80-S83. doi: 10.1519/JSC.0000000000003155.
Nichols, IA and Szivak, TK. Effects of different hand widths on plyometric push-up performance. J Strength Cond Res 35(2S): S80-S83, 2021-The purpose of this study was to investigate the effects of hand width placement during the performance of plyometric push-ups. Ten male subjects (age: 24.14 ± 2.79 years, height: 178.14 ± 5.21 cm, and body mass: 91.55 ± 6.04 kg) performed 2 plyometric push-ups at 120, 150, and 170% of the subject's biacromial width (6 total push-ups) in a randomized order. Height (H), peak force (pF), peak power (pP), and rate of power development data were collected using a force plate. One-way repeated-measures analysis of variance showed no significant differences in performance measures across all hand widths. A secondary analysis using a mixed-effects linear regression model was performed due to the small sample size. Regression analysis showed a significant difference in pF (p < 0.05) between 120 and 170% hand widths. Study results suggest that although upper-body (UB) power output seems to be similar across varying hand widths, UB force development (pF) may be significantly affected by hand width during the plyometric push-up. Study results suggest that hand-width placement may impact plyometric performance measures and should be considered if the plyometric push-up is used to assess an individual's UB power. To the best of authors' knowledge, this is the first study to investigate the effects of varying hand widths on plyometric push-up performance.
尼科尔斯，IA 和斯齐瓦克，TK。不同手宽对增强式俯卧撑表现的影响。J 力量与体能研究 35（增刊 2）：S80-S83，2021-本研究旨在探讨在进行增强式俯卧撑时手宽位置对俯卧撑表现的影响。10 名男性受试者（年龄：24.14 ± 2.79 岁，身高：178.14 ± 5.21cm，体重：91.55 ± 6.04kg）以随机顺序进行了 2 次 120%、150%和 170%双肩胛骨宽（共 6 次俯卧撑）的增强式俯卧撑。使用力量板收集高度（H）、峰值力（pF）、峰值功率（pP）和功率发展率数据。单向重复测量方差分析显示，在所有手宽下，表现测量值没有显著差异。由于样本量较小，因此进行了混合效应线性回归模型的二次分析。回归分析显示，在 120%和 170%手宽之间，pF 存在显著差异（p < 0.05）。研究结果表明，尽管在上肢（UB）功率输出似乎在不同手宽之间相似，但在增强式俯卧撑中，UB 力发展（pF）可能会受到手宽的显著影响。研究结果表明，手宽的放置可能会影响增强式俯卧撑的表现测量值，如果使用增强式俯卧撑来评估个体的 UB 力量，则应考虑手宽的影响。据作者所知，这是第一项研究不同手宽对增强式俯卧撑表现影响的研究。
