Stratton Matthew T, Massengale Austin T, Clark Riley A, Evenson-McMurtry Kaitlyn, Wormely Morgan
Basic and Applied Laboratory for Dietary Interventions in Exercise and Sport, Department of Health, Kinesiology, and Sport, University of South Alabama, Mobile, AL 36688, USA.
Sports (Basel). 2024 Dec 3;12(12):334. doi: 10.3390/sports12120334.
One repetition maximum (1RM) is a vital metric for exercise professionals, but various testing protocols exist, and their impacts on the resulting 1RM, barbell kinetics, and subsequent muscular performance testing are not well understood. This study aimed to compare two previously established protocols and a novel self-led method for determining bench press 1RM, 1RM barbell kinetics, and subsequent muscular performance measures.
Twenty-four resistance-trained males (n = 12, 24 ± 6.1 years) and females (n = 12, 22.5 ± 5.5 years) completed three laboratory visits in a randomized crossover fashion. During each visit, a 1RM was established using one of the three protocols followed by a single set to volitional fatigue using 80% of their 1RM. A Sex:Protocol repeated measures ANOVA was used to determine the effects of sex and differences between protocols.
No significant differences were observed between the protocols for any measure, except for 1RM peak power ( = 0.036). Post hoc pairwise comparisons failed to identify any differences. Males showed significantly higher 1RM, average, and peak power (s < 0.001), while females demonstrated a greater average concentric velocity ( = 0.031) at 1RM.
These data suggest the protocol used to establish 1RM may have minimal impact on the final 1RM, 1RM barbell kinetics, and subsequent muscular endurance in a laboratory setting.
一次重复最大值（1RM）是运动专业人士的一项重要指标，但存在多种测试方案，且它们对最终的1RM、杠铃动力学以及后续肌肉性能测试的影响尚不清楚。本研究旨在比较两种先前建立的方案和一种新颖的自主引导方法，以确定卧推1RM、1RM杠铃动力学以及后续肌肉性能指标。
24名经过抗阻训练的男性（n = 12，24 ± 6.1岁）和女性（n = 12，22.5 ± 5.5岁）以随机交叉方式完成三次实验室访视。在每次访视期间，使用三种方案之一确定1RM，然后以1RM的80%进行一组至力竭。采用性别：方案重复测量方差分析来确定性别影响和方案之间的差异。
除1RM峰值功率（P = 0.036）外，各方案在任何测量指标上均未观察到显著差异。事后成对比较未发现任何差异。男性的1RM、平均功率和峰值功率显著更高（P < 0.001），而女性在1RM时表现出更高的平均向心速度（P = 0.031）。
这些数据表明，在实验室环境中，用于确定1RM的方案可能对最终的1RM、1RM杠铃动力学以及后续肌肉耐力影响最小。
