Skeletal Muscle Assessment Laboratory, Department of Physical Education, School of Technology and Sciences, São Paulo State University, Presidente Prudente, Brazil.
Department of Kinesiology, Coastal Carolina University, Conway, South Carolina.
J Strength Cond Res. 2018 Feb;32(2):572-577. doi: 10.1519/JSC.0000000000002329.
de Freitas, MC, Cholewa, JM, Gobbo, LA, de Oliveira, JVNS, Lira, FS, and Rossi, FE. Acute capsaicin supplementation improves 1,500-m running time-trial performance and rate of perceived exertion in physically active adults. J Strength Cond Res 32(2): 572-577, 2018-The purpose of this study was to investigate the acute effect of capsaicin supplementation on performance, rate of perceived exertion (RPE), and blood lactate concentrations during short-duration running in physically active adults. Ten physically active men (age = 23.5 ± 1.9 years, mass = 78.3 ± 12.4 kg, and height = 177.9 ± 5.9 cm) completed 2 randomized, double-blind trials: Capsaicin condition (12 mg) or a placebo condition. Forty-five minutes after supplement consumption, the participants performed a 1,500-m running time trial. Time (in seconds) was recorded. Blood lactate concentration was analyzed at rest, immediately after exercise, after 5, 10, and 30 minutes during recovery and the RPE was collected after exercise. The time was significantly (t = 3.316, p = 0.009) lower in the capsaicin (371.6 ± 40.8 seconds) compared with placebo (376.7 ± 39 seconds). Rate of perceived exertion was significantly (t = 2.753, p = 0.022) less in the capsaicin (18.0 ± 1.9) compared with the placebo (18.8 ± 1.3). Lactate increased across time for both conditions without significant differences between (p > 0.05). In summary, acute capsaicin supplementation improves middle distance running (1,500 m) performance and reduced RPE in physically active adults.
德弗雷塔斯，MC，乔莱瓦，JM，戈博，LA，德奥利韦拉，JVNS，利拉，FS，和罗西，FE。急性辣椒素补充可改善活跃成年人 1500 米跑步计时赛表现和感知用力率。J 力量与调理研究 32(2)：572-577，2018-本研究旨在探讨辣椒素补充对活跃成年人短时间跑步时表现、感知用力率（RPE）和血乳酸浓度的急性影响。10 名活跃男性（年龄=23.5±1.9 岁，体重=78.3±12.4 千克，身高=177.9±5.9 厘米）完成了 2 项随机、双盲试验：辣椒素组（12 毫克）或安慰剂组。补充后 45 分钟，参与者进行了 1500 米跑步计时赛。记录时间（秒）。在休息时、运动后立即、恢复期间的 5、10 和 30 分钟时分析血乳酸浓度，并在运动后收集 RPE。与安慰剂（376.7±39 秒）相比，辣椒素（371.6±40.8 秒）的时间明显（t=3.316，p=0.009）更低。与安慰剂（18.8±1.3）相比，辣椒素（18.0±1.9）的 RPE 明显更低（t=2.753，p=0.022）。两种情况下的乳酸浓度均随时间增加，但无显著差异（p>0.05）。综上所述，急性辣椒素补充可改善活跃成年人的中距离跑步（1500 米）表现并降低 RPE。
