Herrera-Bermudo José Carlos, Puente-Alcaraz Carlos, Díaz-Sánchez Pablo, González-Badillo Juan José, Rodríguez-Rosell David
Department of Sport and Computer Science, Universidad Pablo de Olavide, Seville, Spain.
Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain ; and.
J Strength Cond Res. 2024 Dec 1;38(12):2013-2021. doi: 10.1519/JSC.0000000000004920. Epub 2024 Aug 14.
Herrera-Bermudo, JC, Puente-Alcaraz, C, Díaz-Sánchez, P, González-Badillo, JJ, and Rodríguez-Rosell, D. Influence of grip width on the load-velocity relationship and 1 repetition maximum value in the bench press exercise: a comparative and reliability analysis of mean velocity vs. mean propulsive velocity vs. peak velocity. J Strength Cond Res 38(12): 2013-2021, 2024-This study aimed to analyze the reliability and compare the load (percentage of 1 repetition maximum [%1RM])-velocity relationship, bar displacement (DIS), the 1RM, and the velocity attained against the 1RM value (V1RM) in the bench press exercise using 3 different bar grip widths: narrow (120% of the biacromial distance [BD]), medium (160%), and wide (200%). A group of 54 healthy, physically active men randomly performed a total of 6 incremental tests (1 week apart) up to 1RM (2 with each bar grip width) on a Smith machine. The mean velocity (MV), mean propulsive velocity (MPV), peak velocity, and DIS were recorded for the subsequent analysis. The 3 velocity variables showed high relative (intraclass correlation coefficient: 0.90-0.97) and absolute (coefficient of variation: 2.21-9.38%) reliability in all grip widths against all relative loads. The 1RM value and the V1RM present high absolute and relative reliability in all grip widths. There are no significant differences in the value of 1RM and V1RM between grip widths. High relationships were observed between the relative load (%1RM) and velocity variables, with MPV showing the best fit. Significant greater values in MPV, MV, and DIS associated with each %1RM were observed for narrow and medium compared with wide grip width. In conclusion, our results suggest that the 3 velocity variables were highly reliable at the different grip widths used against all relative loads. In addition, there was a tendency to reach higher MV, MPV, and DIS values as the grip width decreased. Therefore, this factor should be considered for the assessment and design of training.
埃雷拉 - 贝穆多，JC；普恩特 - 阿尔卡拉斯，C；迪亚斯 - 桑切斯，P；冈萨雷斯 - 巴迪略，JJ；以及罗德里格斯 - 罗塞尔，D。握距对卧推练习中负荷 - 速度关系和1次重复最大值的影响：平均速度、平均推进速度与峰值速度的比较及可靠性分析。《力量与体能研究杂志》38(12)：2013 - 2021，2024 - 本研究旨在分析可靠性，并比较在卧推练习中使用三种不同杠铃握距（窄握距为肩峰间距离[BD]的120%，中握距为160%，宽握距为200%）时的负荷（1次重复最大值的百分比[%1RM]） - 速度关系、杠铃位移（DIS）、1RM以及相对于1RM值所达到的速度（V1RM）。一组54名健康、有体育活动习惯的男性在史密斯机上随机进行了总共6次递增测试（每次间隔1周）直至1RM（每种握距进行2次）。记录平均速度（MV）、平均推进速度（MPV）、峰值速度和DIS用于后续分析。在所有握距下，相对于所有相对负荷，这三个速度变量均显示出较高的相对（组内相关系数：0.90 - 0.97）和绝对（变异系数：2.21 - 9.38%）可靠性。1RM值和V1RM在所有握距下均呈现出较高的绝对和相对可靠性。不同握距之间1RM和V1RM的值无显著差异。观察到相对负荷（%1RM）与速度变量之间存在高度相关性，其中MPV拟合度最佳。与宽握距相比，窄握距和中握距在每个%1RM下的MPV、MV和DIS值显著更高。总之，我们的结果表明，在针对所有相对负荷使用的不同握距下，这三个速度变量具有高度可靠性。此外，随着握距减小，MV、MPV和DIS值有升高的趋势。因此，在训练评估和设计中应考虑这一因素。
