Exercise Physiology Laboratory, Sports Science Institute, Camilo José Cela University, C/Castillo de Alarcon, 49. Villafranca del Castillo, 28692, Madrid, Spain,
Eur J Appl Physiol. 2014 Mar;114(3):587-95. doi: 10.1007/s00421-013-2789-2. Epub 2013 Dec 13.
This study aimed at investigating the effectiveness of compression stockings to prevent muscular damage and preserve muscular performance during a half-ironman triathlon.
Thirty-six experienced triathletes volunteered for this study. Participants were matched for age, anthropometric data and training status and placed into the experimental group (N = 19; using ankle-to-knee graduated compression stockings) or control group (N = 17; using regular socks). Participants competed in a half-ironman triathlon celebrated at 29 ± 3 °C and 73 ± 8% of relative humidity. Race time was measured by means of chip timing. Pre- and post-race, maximal height and leg muscle power were measured during a countermovement jump. At the same time, blood myoglobin and creatine kinase concentrations were determined and the triathletes were asked for perceived exertion and muscle soreness using validated scales.
Total race time was not different between groups (315 ± 45 for the control group and 310 ± 32 min for the experimental group; P = 0.46). After the race, jump height (-8.5 ± 3.0 versus -9.2 ± 5.3%; P = 0.47) and leg muscle power reductions (-13 ± 10 versus -15 ± 10 %; P = 0.72) were similar between groups. Post-race myoglobin (718 ± 119 versus 591 ± 100 μg/mL; P = 0.42) and creatine kinase concentrations (604 ± 137 versus 525 ± 69 U/L; P = 0.60) were not different between groups. Perceived muscle soreness (5.3 ± 2.1 versus 6.0 ± 2.0 arbitrary units; P = 0.42) and the rating of perceived effort (17 ± 2 versus 17 ± 2 arbitrary units; P = 0.58) were not different between groups after the race.
Wearing compression stockings did not represent any advantage for maintaining muscle function or reducing blood markers of muscle damage during a triathlon event.
本研究旨在探讨压缩袜在预防半铁人三项运动中肌肉损伤和保持肌肉性能方面的效果。
36 名有经验的铁人三项运动员自愿参加了这项研究。参与者根据年龄、人体测量数据和训练状况进行匹配，分为实验组（N=19；使用脚踝到膝盖的渐进式压缩长袜）或对照组（N=17；使用普通袜子）。参与者在 29±3°C 和 73±8%相对湿度的条件下参加半铁人三项比赛。比赛时间通过芯片计时测量。比赛前后，通过反跳测试测量最大跳高和腿部肌肉力量。同时，测定血液肌红蛋白和肌酸激酶浓度，并使用经过验证的量表询问运动员的感知用力和肌肉酸痛程度。
两组的总比赛时间没有差异（对照组为 315±45 分钟，实验组为 310±32 分钟；P=0.46）。赛后，两组的跳跃高度（-8.5±3.0 与-9.2±5.3%；P=0.47）和腿部肌肉力量下降（-13±10 与-15±10%；P=0.72）相似。赛后肌红蛋白（718±119 与 591±100 μg/mL；P=0.42）和肌酸激酶浓度（604±137 与 525±69 U/L；P=0.60）在两组之间没有差异。赛后两组的肌肉酸痛感知（5.3±2.1 与 6.0±2.0 任意单位；P=0.42）和感知用力评分（17±2 与 17±2 任意单位；P=0.58）也没有差异。
在铁人三项比赛中，穿压缩袜并不能在保持肌肉功能或减少血液肌肉损伤标志物方面带来任何优势。
