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负荷-速度曲线在男性和女性之间的差异比在不同力量水平的个体之间的差异更大。

The load-velocity profile differs more between men and women than between individuals with different strength levels.

作者信息

Torrejón Alejandro, Balsalobre-Fernández Carlos, Haff G Gregory, García-Ramos Amador

机构信息

a Faculty of Sport Sciences, Department of Physical Education and Sport , University of Granada , Granada , Spain.

b Department of Physical Education, Sport and Human Movement , Autonomous University of Madrid , Madrid , Spain.

出版信息

Sports Biomech. 2019 Jun;18(3):245-255. doi: 10.1080/14763141.2018.1433872. Epub 2018 Mar 21.

Abstract

This study aimed to determine the suitability of the load-velocity relationship to prescribe the relative load (%1RM) in women, as well as to compare the load-velocity profile between sexes and participants with different strength levels. The load-velocity relationship of 14 men (1RM: 1.17 ± 0.19) and 14 women (1RM: 0.66 ± 0.13) were evaluated in the bench press exercise. The main findings revealed that: (I) the load-velocity relationship was always strong and linear ( range: 0.987-0.993), (II) a steeper load-velocity profile was observed in men compared to women (Effect size [ES]: 1.09), with men showing higher velocities for light loads (ES: - 0.81 and - 0.40 for the y-intercept and 30%1RM, respectively), but women reporting higher velocities for the heavy loads (ES: 1.14 and 1.50 at 90%1RM and 100%1RM, respectively); and (III) while the slope of the load-velocity profile was moderately steeper for weak men compared to their strong counterpart (ES: 1.02), small differences were observed between strong and weak women (ES: - 0.39). While these results support the use of the individual load-velocity relationship to prescribe the %1RM in the bench press exercise for women, they also highlight the large disparities in their load-velocity profile compared to men.

摘要

本研究旨在确定负荷-速度关系对于规定女性相对负荷(%1RM)的适用性,同时比较不同性别以及不同力量水平参与者之间的负荷-速度曲线。在卧推练习中评估了14名男性(1RM:1.17±0.19)和14名女性(1RM:0.66±0.13)的负荷-速度关系。主要研究结果表明:(I)负荷-速度关系始终很强且呈线性(范围:0.987 - 0.993);(II)与女性相比,男性的负荷-速度曲线更陡峭(效应量[ES]:1.09),男性在轻负荷下速度更高(y轴截距和30%1RM时的ES分别为 - 0.81和 - 0.40),但女性在重负荷下速度更高(90%1RM和100%1RM时的ES分别为1.14和1.50);(III)与强壮男性相比,虚弱男性的负荷-速度曲线斜率略陡(ES:1.02),而强壮女性和虚弱女性之间差异较小(ES: - 0.39)。虽然这些结果支持在卧推练习中使用个体负荷-速度关系来规定女性的%1RM,但也凸显了与男性相比她们在负荷-速度曲线上的巨大差异。

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