Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10607, China; National Defense Medical Center, Taipei, Taiwan 11466, China.
Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10607, China.
J Sport Health Sci. 2020 Dec;9(6):685-691. doi: 10.1016/j.jshs.2017.01.001. Epub 2017 Jan 5.
The few previous studies that focused on the effects of compression garments (CG) on distance running performance have simultaneously measured electromyogram, physiological, and perceptual parameters. Therefore, this study investigated the effects of CG on muscle activation and median frequency during and after distance running, as well as blood-lactate concentration and rating of perceived exertion (RPE) during distance running.
Eight healthy male recreational runners were recruited to randomly perform two 40 min treadmill running trials, one with CG, and the other with control garment made of normal cloth. The RPE and the surface electromyography (EMG) of 5 lower extremity muscles including gluteus maximus (GM), rectus femoris (RF), semitendinosus (ST), tibialis anterior (TA), and gastrocnemius (GAS) were measured during the running trial. The blood-lactate levels before and after the running trial were measured.
Wearing CG led to significant lower muscle activation (p < 0.05) in the GM (decreased 7.40%-14.31%), RF (decreased 4.39%-4.76%), and ST (decreased 3.42%-7.20%) muscles; moreover, significant higher median frequency (p< 0.05) in the GM (increased 5.57%) and ST (increased 10.58%) muscles. Wearing CG did not alter the RPE values or the blood-lactate levels (p > 0.05).
Wearing CG was associated with significantly lower muscle activation and higher median frequency in the running-related key muscles during distance running. This finding suggested that wearing CG may improve muscle function, which might enhance running performance and prevent muscle fatigue.
少数先前专注于压缩服装（CG）对长跑性能影响的研究同时测量了肌电图、生理和知觉参数。因此，本研究调查了 CG 对长跑过程中和长跑后肌肉激活和中值频率、血乳酸浓度和感知用力（RPE）的影响。
招募了 8 名健康的男性休闲跑步者，随机进行两次 40 分钟的跑步机跑步试验，一次穿着 CG，另一次穿着由普通布制成的对照服装。在跑步试验期间测量了 5 个下肢肌肉（臀大肌、股直肌、半腱肌、胫骨前肌和腓肠肌）的 RPE 和表面肌电图（EMG）。在跑步试验前后测量血乳酸水平。
穿着 CG 导致 GM（减少 7.40%-14.31%）、RF（减少 4.39%-4.76%）和 ST（减少 3.42%-7.20%）肌肉的肌肉激活显著降低（p<0.05）；此外，GM（增加 5.57%）和 ST（增加 10.58%）肌肉的中值频率显著升高（p<0.05）。穿着 CG 并没有改变 RPE 值或血乳酸水平（p>0.05）。
穿着 CG 与长跑过程中与跑步相关的关键肌肉的肌肉激活显著降低和中值频率升高有关。这一发现表明，穿着 CG 可能改善肌肉功能，从而提高跑步表现并预防肌肉疲劳。
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