Department of Kinesiology, University of Montevallo, Montevallo, Alabama.
Department of Human Movement, Sport and Leisure Studies, Bowling Green State University, Bowling Green, Ohio.
J Strength Cond Res. 2017 Dec;31(12):3435-3443. doi: 10.1519/JSC.0000000000001754.
Davis, JK, Laurent, CM, Allen, KE, Zhang, Y, Stolworthy, NI, Welch, TR, and Nevett, ME. Influence of clothing on thermoregulation and comfort during exercise in the heat. J Strength Cond Res 31(12): 3435-3443, 2017-Sport textiles of synthetic fiber have been proposed to have superior properties for keeping wearers cooler, drier, and more comfortable compared with natural fibers. The impact of various fiber content and fabric construction on thermoregulation and perceptual responses are not well understood. Eight male collegiate athletes performed 3 counterbalanced trials of 45-minute treadmill run at 60% of maximal oxygen uptake in an environmental chamber (32° C). Three different fibers, consisting of 100% cotton, a blend of natural fibers (50/50% cotton/soybean), and a synthetic fiber (100% polyester) with mesh loops to facilitate ventilation through the clothing, were tested. Heat strain indices, microenvironment temperature, ratings of perceived exertion (RPE), and clothing comfort were measured. Session RPE (S-RPE) and session thermal sensation (S-TS) were recorded 20 minutes after each trial. There was no effect of clothing on rectal, skin, and body temperatures, heart rate, RPE, or comfort measures (p ≥ 0.05). A significant effect was observed for synthetic fiber compared with cotton on S-RPE (p = 0.03), S-TS (p = 0.04), and the microenvironment temperature at the chest (p = 0.02). No significant difference was shown for any other fibers on S-RPE, S-TS, or other microenvironment areas (p ≥ 0.05). These results show that clothing fiber content and fabric construction had no effect on thermoregulation, RPE, or clothing comfort during moderate-intensity exercise in the heat; whereas synthetic fabric construction indeed effectively reduced regional microenvironment temperature and attenuated global exertion and TS, which may have important implications for exercise tolerance in the heat.
戴维斯 JK，劳伦特 CM，艾伦 KE，张 Y，斯托尔沃西 NI，韦尔奇 TR，内维特 ME。运动服对热环境下运动时的体温调节和舒适度的影响。J 力量与体能研究 31(12)：3435-3443，2017-合成纤维的运动服装被认为具有比天然纤维更好的保持穿着者凉爽、干燥和舒适的特性。各种纤维含量和织物结构对体温调节和感觉反应的影响还不太清楚。8 名男性大学生运动员在环境室(32°C)内进行了 3 次平衡试验，每次试验时长 45 分钟，在跑步机上以最大摄氧量的 60%进行跑步。测试了 3 种不同的纤维，分别是 100%棉、天然纤维(棉/大豆 50/50%)和合成纤维(100%聚酯)，后者有网眼循环，以促进服装内的通风。测量了热应激指数、微环境温度、感觉用力等级(RPE)和服装舒适度。记录了每次试验后 20 分钟的赛中 RPE(S-RPE)和赛中热感觉(S-TS)。服装对直肠、皮肤和体温、心率、RPE 或舒适度测量没有影响(p≥0.05)。与棉相比，合成纤维在 S-RPE(p=0.03)、S-TS(p=0.04)和胸部微环境温度(p=0.02)上有显著影响。其他纤维在 S-RPE、S-TS 或其他微环境区域上没有显示出显著差异(p≥0.05)。这些结果表明，在热环境下进行中等强度运动时，服装纤维含量和织物结构对体温调节、RPE 或服装舒适度没有影响；而合成纤维织物结构确实有效地降低了局部微环境温度，减弱了整体用力和 TS，这可能对热环境下的运动耐力有重要影响。
