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- Title
Combined Caffeine-Capsaicin Supplementation does not Enhance the Performance of Trained Men in a Resistance Training Session.
- Authors
Martins da Cruz, Vernon; Dias Mendes, Matheus; de Souza Fonseca, Igor César; Noqueira, Rafael Henrique; Ferreira Porto, Yves; Dias da Silva, Ronaldo Ângelo; Motta Drummond, Marcos Daniel
- Abstract
Purpose. This study aimed to verify and compare the potential acute effects of combined and isolated supplementation of caffeine and capsaicin on the performance and the perceived exertion (RPE) in a session of resistance training (RT). Methods. Fourteen trained men participated in the study (5.6 ± 3.5 years of experience in RT and weekly training frequency of 5 ± 0.8 days), aged in average 24.8 ± 3.3 years old, with a mean height of 178.6 ± 4.9 cm, and mean total body mass of 82.4 ± 7.1 kg. We applied a randomized, double-blind, crossover, and placebo-controlled experimental design. The volunteers performed the training protocol after consuming the combined supplementation (CAF+CAP) of capsaicin (12 mg) (CAP) and caffeine (CAF) (5 mg x kg-1), in addition consumed them alone. The RT protocol consisted of performing the barbell bench press and incline barbell bench press exercises, with 70% of 1RM until concentric muscle failure. The intervals adopted were 90 and 120 seconds between sets and exercises, respectively. The maximum number of repetitions (MNR), total volume (repetitions x mass lifted), and the RPE in the sessions were registered and compared. Results. One-way ANOVA with repeated measures found no statistically significant difference in the means of MNR (p = 0.176), total volume (p = 0.110), and RPE (p = 0.233) between the experimental conditions. Conclusions. Therefore, combined and isolated caffeine and capsaicin acute supplementation did not improve the upper-body RT performance of trained men. Furthermore, these substances may not attenuate the perception of exertion during RT with maximum repetitions.
- Subjects
THERAPEUTIC use of capsaicin; RESISTANCE training; ERGOGENIC aids; ONE-way analysis of variance; EXERCISE physiology; DIETARY supplements; RANDOMIZED controlled trials; CAFFEINE; EXERCISE intensity; PSYCHOSOCIAL factors; MALE athletes; BLIND experiment; DESCRIPTIVE statistics; RESEARCH funding; ATHLETIC ability; STATISTICAL sampling; CROSSOVER trials; DATA analysis software
- Publication
Muscles, Ligaments & Tendons Journal (MLTJ), 2023, Vol 13, Issue 4, p645
- ISSN
2240-4554
- Publication type
Article
- DOI
10.32098/mltj.04.2023.17