Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente 19060-900, Brazil.
Post-Graduate Program of Physiological Sciences, Department of Physiological Sciences, State University of Maringá, Maringá 87020-900, Brazil.
Nutrients. 2020 Dec 24;13(1):34. doi: 10.3390/nu13010034.
To investigate the acute effects of a capsaicin analogue supplement on 10 km time-trial performance and physiological responses in amateur athletes.
Twenty-one participants (age = 29.3 ± 5.5 years, weight 74.2 ± 11.3 kg, height 176.0 ± 0.0 cm, fat mass 12.7 ± 3.8%, V˙O 62.7 ± 8.4 mL·k·min), completed two randomized, double-blind trials: capsaicin analogue condition (Capsiate (CAP) = 24 mg) or a placebo (PLA) condition. The participants consumed two doses of 12 mg of CAP or PLA capsule 45 min before and immediately at the start of each trial. The time required to complete 10 km, lactate concentration, maximum heart rate (HR), and rating of perceived exertion (RPE) were recorded.
The 10 km time-trial performance (CAP = 45.07 ± 6.41 min vs. PLA = 45.13 ± 6.73, = 0.828) was not statistically significantly different between conditions. No statistically significant differences between conditions were detected for lactate concentration ( = 0.507), HR ( = 0.897) and RPE ( = 0.517).
Two doses of a 12 mg Capsaicin analogue supplement did not improve performance and physiological responses in a 10 km running time-trial in amateur athletes.
研究辣椒素类似物补充剂对业余运动员 10 公里计时赛表现和生理反应的急性影响。
21 名参与者（年龄=29.3±5.5 岁，体重 74.2±11.3kg，身高 176.0±0.0cm，体脂率 12.7±3.8%，V˙O 62.7±8.4mL·k·min）完成了两项随机、双盲试验：辣椒素类似物条件（Capsiate（CAP）=24mg）或安慰剂（PLA）条件。参与者在每次试验前 45 分钟和开始时立即服用两个剂量的 12mg CAP 或 PLA 胶囊。记录完成 10 公里所需的时间、乳酸浓度、最大心率（HR）和感知用力程度（RPE）。
10 公里计时赛表现（CAP=45.07±6.41min 与 PLA=45.13±6.73，=0.828）在两种条件之间无统计学差异。两种条件之间的乳酸浓度（=0.507）、HR（=0.897）和 RPE（=0.517）无统计学差异。
两次服用 12mg 辣椒素类似物补充剂并未改善业余运动员 10 公里跑步计时赛的表现和生理反应。
