Barbado David, Prat-Luri Amaya, Sabido Rafael, Gómez-Illán Ramón, Carpena Carmen, Valero-Conesa Gregori, Sempere Ángel P, Vera-Garcia Francisco J
Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Elche, Spain; Institute for Health and Biomedical Research (ISABIAL Foundation), Miguel Hernández University of Elche, Alicante, Spain.
Sports Research Centre, Department of Sport Sciences, Miguel Hernández University of Elche, Elche, Spain.
Arch Phys Med Rehabil. 2025 Jul;106(7):1014-1020. doi: 10.1016/j.apmr.2024.12.005. Epub 2024 Dec 16.
To analyze the reliability of the estimated 1-repetition maximum (e1RM) through the repetition to fatigue method in 4 unilateral resistance training exercises performed using weight machines (ie, leg press, calf raises, leg extension, seated leg curl), and their relationship to gait-related tests.
Cross-sectional study.
University sports complex.
Twenty-four participants with multiple sclerosis (N=24) completed 3 testing sessions. They performed 3 testing sessions that were integrated into a long-term multimodal exercise regime comprising strength, balance, and functional mobility exercises, conducted twice a week in 90-minute sessions.
The first session consisted in the assessment of the gait-related tests (ie, timed up and go test [TUG], timed 25-foot walk test [T25FW], 6-minute walk test [6MW]). Two testing sessions were dedicated to the assessment of the e1RM in the aforementioned exercises.
Intraclass correlation coefficients (ICC) of absolute e1RM ranged from 0.92 to 0.97 and they were slightly higher than those relative to the body mass (0.85<intraclass correlation coefficient 2.1<0.96). Typical errors for the 4 exercises ranged between 2.2 and 4.7 kg (9.3%-11.6%). The weaker leg e1RM for the calf raises and leg curl exercises were significantly associated with the 6MW (0.654≤r≤0.677), T25FW (-0.555≥r≥-0.557), and TUG (-0.480≥r≥-0.526). Between-leg e1RM asymmetries in these exercises were also correlated with the 6MW (0.420≤r≤0.467), T25FW (0.553≤r≤0.590), and TUG (0.626≤r≤0.627). Unilateral e1RMs during the leg press and leg extension showed no or few significant associations with gait-related tests.
The results suggest that e1RM can be safely and reliably performed to quantify single-leg strength and to control the training load in these exercises. Knee flexors and ankle extensors strength, especially of the weaker leg, along with their asymmetry, seem to be the most relevant factors to consider in the strength assessment and training of this population.
通过重复至疲劳法分析在使用重量器械进行的4项单侧阻力训练练习（即腿举、提踵、腿伸展、坐姿腿弯举）中估计的1次重复最大值（e1RM）的可靠性，以及它们与步态相关测试的关系。
横断面研究。
大学体育综合设施。
24名多发性硬化症患者（N = 24）完成了3次测试。他们进行了3次测试，这些测试被纳入一个长期的多模式运动方案，包括力量、平衡和功能性移动练习（该方案每周进行两次，每次90分钟）。
第一次测试包括对步态相关测试（即计时起立行走测试[TUG]、25英尺计时步行测试[T25FW]、6分钟步行测试[6MW]）的评估。另外两次测试专门用于评估上述练习中的e1RM。
绝对e1RM的组内相关系数（ICC）范围为0.92至0.97，略高于相对于体重的组内相关系数（0.85 <组内相关系数< 0.96）。4项练习的典型误差在2.2至4.7千克之间（9.3% - 11.6%）。提踵和腿弯举练习中较弱腿的e1RM与6MW（0.654≤r≤0.677）、T25FW（-0.555≥r≥-0.557）和TUG（-0.480≥r≥-0.526）显著相关。这些练习中两腿之间的e1RM不对称性也与6MW（0.420≤r≤0.467）、T25FW（0.553≤r≤0.590）和TUG（0.626≤r≤0.627）相关。腿举和腿伸展过程中的单侧e1RM与步态相关测试无显著关联或仅有少量显著关联。
结果表明，可以安全可靠地进行e1RM以量化单腿力量并控制这些练习中的训练负荷。膝关节屈肌和踝关节伸肌力量，尤其是较弱腿的力量及其不对称性，似乎是该人群力量评估和训练中最需要考虑的因素。
