Institute for Health and Sport (iHeS), Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.
Department of Physiology, Australian Institute of Sport, Canberra, Australia.
Sci Rep. 2022 Oct 6;12(1):16762. doi: 10.1038/s41598-022-21029-2.
The aim of this study was to investigate the physiological effects of compression tights on blood flow following exercise and to assess if the placebo effect is responsible for any acute performance or psychological benefits. Twenty-two resistance-trained participants completed a lower-body resistance exercise session followed by a 4 h recovery period. Participants were assigned a post-exercise recovery intervention of either compression tights applied for 4 h (COMP), placebo tablet consumed every hour for 4 h (PLA) or control (CON). Physiological (markers of venous return, muscle blood flow, blood metabolites, thigh girth), performance (countermovement jump, isometric mid-thigh pull), and psychological measures (perceived muscle soreness, total quality of recovery) were collected pre-exercise, immediately post-exercise, at 30 (markers of venous return and muscle blood flow) and 60 min (blood metabolites, thigh girth and psychological measures) intervals during 4 h of recovery, and at 4 h, 24 h and 48 h post-exercise. No significant (P > 0.05) differences were observed between interventions. However, effect size analysis revealed COMP enhanced markers of venous return, muscle blood flow, recovery of performance measures, psychological measures and reduced thigh girth compared to PLA and CON. There were no group differences in blood metabolites. These findings suggest compression tights worn after resistance exercise enhance blood flow and indices of exercise recovery, and that these benefits were not due to a placebo effect.
本研究旨在探究运动后紧身裤对血流的生理影响，并评估安慰剂效应是否是急性运动表现或心理获益的原因。22 名抗阻训练的参与者完成了一次下肢抗阻运动，随后进行了 4 小时的恢复期。参与者被分配到运动后恢复干预组，包括紧身裤组（COMP）、安慰剂片剂组（PLA）或对照组（CON）。生理指标（静脉回流标志物、肌肉血流、血液代谢物、大腿围度）、运动表现（反向跳、等长大腿中部拉伸）和心理指标（肌肉酸痛感、总恢复质量）在运动前、运动后即刻、恢复 4 小时内的 30 分钟（静脉回流和肌肉血流标志物）和 60 分钟（血液代谢物、大腿围度和心理指标）以及运动后 4 小时、24 小时和 48 小时进行了采集。在各干预组之间未观察到显著差异（P>0.05）。然而，效应量分析显示，与 PLA 和 CON 相比，COMP 增强了静脉回流标志物、肌肉血流、运动表现恢复、心理指标，降低了大腿围度。血液代谢物在各组间无差异。这些发现表明，抗阻运动后穿着紧身裤可以增加血流和运动恢复的指标，并且这些益处不是由于安慰剂效应。
