Sañudo Borja, de Hoyo Moisés, McVeigh Joseph G
Department of Physical Education and Sport, University of Seville, Seville, Spain ; and.
Discipline of Physiotherapy, School of Clinical Therapies, College of Medicine and Health, University College Cork, Cork, Ireland.
J Strength Cond Res. 2022 Jan 1;36(1):252-258. doi: 10.1519/JSC.0000000000003428.
Sañudo, B, de Hoyo, M, and McVeigh, JG. Improved muscle strength, muscle power, and physical function after flywheel resistance training in healthy older adults: A randomized controlled trial. J Strength Cond Res 36(1): 252-258, 2022-This study aimed to examine whether flywheel resistance exercise training improved muscle strength, muscle power, and physical function in older adults. Thirty-six older adults (64 ± 5 years) were randomly allocated to either a flywheel resistance exercise training group (ETG; n = 18) or a control (CON) group (n = 18). Subjects in the ETG underwent 6 weeks of resistance training on a flywheel squat device (4 sets of 9 maximal repetitions). Isokinetic concentric (60 and 240°·s-1) and eccentric (120°·s-1) knee extension and flexion peak torques and mean power were measured. Physical function was assessed by the 30-second Chair Sit-Stand Test (CST) and walking speed. After the intervention, within-group analyses showed significantly greater flexion torques and mean power with the dominant leg (concentric at 60°·s-1 and 240°·s-1 and eccentric at 120°·s-1; all d > 0.7, p < 0.05) and improvements in CST (d > 0.8) in the ETG, while no substantial differences were found in the CON group. Significant between-group differences in knee flexion torque both concentric (at 60°·s-1: η2 = 0.168 and 240°·s-1: η2 = 0.112) and eccentric (at 120°·s-1: η2 = 0.103) with the dominant leg were also found in favor of the ETG. There was also significantly better performance in the CST for the ETG (η2 = 0.207). There was a significant association between changes in strength and changes in mean power in the ETG. Changes in physical function outcomes were also observed. In conclusion, flywheel resistance exercise training is an appropriate form of activity for improving strength and functional capacity of older adults.
萨纽多，B，德奥约，M，以及麦克维，JG。健康老年人进行飞轮阻力训练后肌肉力量、肌肉功率和身体功能得到改善：一项随机对照试验。《力量与体能研究杂志》36(1): 252 - 258，2022年——本研究旨在探讨飞轮阻力运动训练是否能改善老年人的肌肉力量、肌肉功率和身体功能。36名老年人（64±5岁）被随机分为飞轮阻力运动训练组（ETG；n = 18）或对照组（CON；n = 18）。ETG组的受试者在飞轮深蹲设备上进行了6周的阻力训练（4组，每组9次最大重复次数）。测量了等速向心（60和240°·s⁻¹）和离心（120°·s⁻¹）膝关节伸展和屈曲的峰值扭矩和平均功率，并通过30秒椅子坐立试验（CST）和步行速度评估身体功能。干预后，组内分析显示，ETG组优势腿的屈曲扭矩和平均功率显著更大（向心60°·s⁻¹和240°·s⁻¹以及离心120°·s⁻¹时；所有d>0.7，p<0.05），且CST有改善（d>0.8），而CON组未发现实质性差异。还发现ETG组优势腿膝关节屈曲扭矩在向心（60°·s⁻¹时：η² = 0.168和240°·s⁻¹时：η² = 0.112）和离心（120°·s⁻¹时：η² = 0.103）时组间存在显著差异，且ETG组在CST中的表现也显著更好（η² = 0.207）。ETG组力量变化与平均功率变化之间存在显著关联，身体功能结果也有变化。总之，飞轮阻力运动训练是改善老年人力量和功能能力的一种合适的活动形式。
