Miyamoto N, Kawakami Y
Department of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kanoya, Japan.
Faculty of Sport Sciences, Waseda University, Saitama, Japan.
Int J Sports Med. 2015 Mar;36(3):220-5. doi: 10.1055/s-0034-1390495. Epub 2014 Oct 27.
Most sporting compression stockings possess a graduated pressure profile. However, it remains unclear whether the graduated pressure profile is an essential feature for reducing the development of muscle fatigue. This study sought to examine the effect of the pressure profile of compression stockings on the degree of muscle fatigue of lower leg muscles induced by submaximal running exercise. 15 male subjects performed 30-min treadmill running in 1 control and 4 compression stocking conditions with the following profiles; 1) graduated low pressure, 2) graduated high pressure, 3) uniform pressure distribution, and 4) localized pressure just over the gastrocnemius muscle belly. Before and immediately after the exercise, T2-weighted magnetic resonance images of the right lower leg were obtained without testing garments. T2 values of the triceps surae and tibialis anterior were calculated from the images. T2 was significantly increased after the running in all conditions. The magnitude of T2 increase was significantly greater in the control than in other 3 conditions except for the one with graduated low pressure, whereas there were no significant differences among the latter 3 conditions. The findings suggest that a graduated pressure profile is not an essential feature of compression stockings for reducing the development of muscle fatigue during submaximal running exercise.
大多数运动压缩袜具有渐变压力分布。然而，渐变压力分布是否是减少肌肉疲劳发展的必要特征仍不清楚。本研究旨在探讨压缩袜的压力分布对次最大强度跑步运动诱发的小腿肌肉疲劳程度的影响。15名男性受试者在1种对照和4种压缩袜条件下进行了30分钟的跑步机跑步，具体压力分布如下：1）渐变低压；2）渐变高压；3）均匀压力分布；4）仅在腓肠肌肌腹上方的局部压力。在运动前和运动后立即获取右小腿的T2加权磁共振图像，且不穿着测试服装。从图像中计算比目鱼肌和胫骨前肌的T2值。在所有条件下跑步后，T2值均显著增加。除渐变低压条件外，对照条件下T2增加的幅度显著大于其他3种条件，而后3种条件之间无显著差异。研究结果表明，在次最大强度跑步运动中，渐变压力分布并非压缩袜减少肌肉疲劳发展的必要特征。
