Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
Department of Physical Education, Sports and Recreation, University of La Frontera, Temuco, Chile.
J Strength Cond Res. 2022 Mar 1;36(3):e55-e58. doi: 10.1519/JSC.0000000000003712.
García-Pinillos, F, Lago-Fuentes, C, Bujalance-Moreno, P, and Pérez-Castilla, A. Effect of the menstrual cycle when estimating 1 repetition maximum from the load-velocity relationship during the bench press exercise. J Strength Cond Res 36(3): e55-e58, 2022-This study aimed to examine the effect of the ovulatory menstrual cycle (MC) when estimating the 1 repetition maximum (1RM) from the individual load-velocity relationship during the bench press (BP) exercise. Nine resistance-trained eumenorrheic women (age: 28.7 ± 3.6 years) were tested in 3 different phases across the MC: menstrual or early follicular phase (i.e., testing between days 1-3), follicular or late follicular phase (i.e., testing between days 7-10), and luteal or mid-luteal phase (i.e., testing between days 19-21). Each testing trial consisted of an incremental loading protocol against 4 loading conditions (≈50-70-80-90% 1RM) in the concentric-only BP exercise. A smartphone application (MyLift) was used to collect the mean velocity (MV) of all repetitions. The 1RM was estimated from the individual load-velocity relationship by applying a linear regression model as the load associated with an MV of 0.17 m·s-1. In addition, the MV obtained at each %1RM (i.e., from 20% 1RM to 80% 1RM in 20% increments), the load-velocity slope (i.e., the decrease in MV per each 1% of increment in the %1RM), and the y-intercept (i.e., the estimate of MV at 0% 1RM) were computed from the individual load-velocity relationships. No significant differences were observed between the 3 phases of the MC for any of the measured load-velocity relationship parameters (corrected p-value ≥0.495; effect size ≤0.24). The results suggest that the estimation of the BP 1RM from the load-velocity relationship seems not to vary over the 3 different phases of the MC (i.e., menstrual, follicular, and luteal phases).
加西亚-皮尼略斯，F，拉戈-富恩特斯，C，布扬兰塞-莫雷诺，P，和佩雷斯-卡斯蒂利亚，A. 在卧推运动中，从负荷-速度关系估计 1 重复最大时月经周期的影响。J 力量与条件研究 36(3):e55-e58,2022-本研究旨在探讨在卧推（BP）运动中，从个体负荷-速度关系估计 1 重复最大（1RM）时，排卵月经周期（MC）的影响。9 名训练有素的月经正常的女性（年龄：28.7±3.6 岁）在 MC 的 3 个不同阶段进行测试：月经期或卵泡早期（即测试第 1-3 天）、卵泡期或晚期卵泡期（即测试第 7-10 天）和黄体期或中期黄体期（即测试第 19-21 天）。每次测试试验都包括在集中式 BP 运动中进行 4 种加载条件（≈50-70-80-90%1RM）的递增加载方案。智能手机应用程序（MyLift）用于收集所有重复的平均速度（MV）。1RM 是通过应用线性回归模型从个体负荷-速度关系中估计出来的，该模型将与 0.17m·s-1 的 MV 相关的负荷作为 1RM。此外，还计算了从个体负荷-速度关系中获得的每个 1RM 的 MV（即从 20%1RM 到 80%1RM，以 20%的增量递增）、负荷-速度斜率（即每增加 1%1RM 时 MV 的减少量）和 y 截距（即 0%1RM 时的 MV 估计值）。MC 的 3 个阶段之间，任何测量的负荷-速度关系参数都没有显著差异（校正后的 p 值≥0.495；效应大小≤0.24）。结果表明，从负荷-速度关系估计 BP1RM 似乎不会在 MC 的 3 个不同阶段（即月经期、卵泡期和黄体期）发生变化。
