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Effects of caffeine supplementation on physical performance and mood dimensions in elite and trained-recreational athletes
Journal of the International Society of Sports Nutrition ( IF 5.1 ) Pub Date : 2020-01-03 , DOI: 10.1186/s12970-019-0332-5
P Jodra 1, 2 , A Lago-Rodríguez 3 , A J Sánchez-Oliver 4 , A López-Samanes 5 , A Pérez-López 6 , P Veiga-Herreros 1 , A F San Juan 7 , R Domínguez 3
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BackgroundCaffeine supplementation (CAFF) has an established ergogenic effect on physical performance and the psychological response to exercise. However, few studies have compared the response to CAFF intake among athletes of different competition level. This study compares the acute effects of CAFF on anaerobic performance, mood and perceived effort in elite and moderately-trained recreational athletes.MethodsParticipants for this randomized, controlled, crossover study were 8 elite athletes (in the senior boxing national team) and 10 trained-recreational athletes. Under two experimental conditions, CAFF supplementation (6 mg/kg) or placebo (PLAC), the athletes completed a Wingate test. Subjective exertion during the test was recorded as the rating of perceived exertion (RPE) both at the general level (RPEgeneral) and at the levels muscular (RPEmuscular) and cardiorespiratory (RPEcardio). Before the Wingate test, participants completed the questionnaires Profiles of Moods States (POMS) and Subjective Vitality Scale (SVS).ResultsIn response to CAFF intake, improvements were noted in Wpeak (11.22 ± 0.65 vs 10.70 ± 0.84; p = 0.003; ηp2$$ {\eta}_p^2 $$=0.44), Wavg (8.75 ± 0.55 vs 8.41 0.46; p = 0.001; ηp2$$ {\eta}_p^2 $$ =0.53) and time taken to reach Wpeak (7.56 ± 1.58 vs 9.11 ± 1.53; p < 0.001; ηp2$$ {\eta}_p^2 $$ =0.57) both in the elite and trained-recreational athletes. However, only the elite athletes showed significant increases in tension (+ 325%), vigor (+ 31%) and SVS (+ 28%) scores after the intake of CAFF compared to levels recorded under the condition PLAC (p < 0.05). Similarly, levels of vigor after consuming CAFF were significantly higher in the elite than the trained-recreational athletes (+ 5.8%).ConclusionsCAFF supplementation improved anaerobic performance in both the elite and recreational athletes. However, the ergogenic effect of CAFF on several mood dimensions and subjective vitality was greater in the elite athletes.

中文翻译:

补充咖啡因对精英运动员和训练有素的休闲运动员的身体表现和情绪维度的影响

背景咖啡因补充剂(CAFF)对身体表现和运动的心理反应具有明确的增效作用。然而,很少有研究比较不同比赛级别的运动员对 CAFF 摄入量的反应。这项研究比较了 CAFF 对精英和中等训练的休闲运动员的无氧表现、情绪和感知努力的急性影响。方法这项随机、对照、交叉研究的参与者是 8 名精英运动员(高级拳击国家队)和 10 名训练有素的运动员。休闲运动员。在两种实验条件下,即补充 CAFF(6 毫克/公斤)或安慰剂(PLAC),运动员完成了 Wingate 测试。测试期间的主观用力被记录为一般水平(RPEgeneral)以及肌肉水平(RPEmuscular)和心肺水平(RPEcardio)的感知用力(RPE)等级。在进行 Wingate 测试之前,参与者完成了情绪状态概况 (POMS) 和主观活力量表 (SVS) 问卷。结果针对 CAFF 摄入量,Wpeak 有所改善(11.22 ± 0.65 vs 10.70 ± 0.84;p = 0.003;ηp2$ $ {\eta}_p^2 $$=0.44)、Wavg (8.75 ± 0.55 vs 8.41 0.46; p = 0.001; ηp2$$ {\eta}_p^2 $$ =0.53) 以及达到 Wpeak 所需的时间 (7.56 ± 1.58 vs 9.11 ± 1.53; p < 0.001; ηp2$$ {\eta}_p^2 $$ =0.57) 在精英运动员和训练有素的休闲运动员中都是如此。然而,与 PLAC 条件下记录的水平相比,只有精英运动员在摄入 CAFF 后,张力 (+ 325%)、活力 (+ 31%) 和 SVS (+ 28%) 分数显着增加 (p < 0.05)。同样,精英运动员服用 CAFF 后的活力水平显着高于训练有素的休闲运动员 (+ 5.8%)。结论 CAFF 补充剂改善了精英运动员和休闲运动员的无氧表现。然而,CAFF 对几个情绪维度和主观活力的增效作用在精英运动员中更大。
更新日期:2020-01-03
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