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- Title
Effects of Capsaicin and Capsiate on Endurance Performance: A Meta-Analysis.
- Authors
Grgic, Jozo; Memon, Aamir Raoof; Chen, Sitong; Ramirez-Campillo, Rodrigo; Barreto, Gabriel; Haugen, Markus Estifanos; Schoenfeld, Brad J.
- Abstract
Several studies have explored the effects of capsaicin and capsiate on endurance performance, with conflicting findings. This systematic review aimed to perform a meta-analysis examining the effects of capsaicin and capsiate vs. placebo on endurance performance in humans. Seven databases were searched to find eligible studies. The effects of capsaicin and capsiate on aerobic endurance (e.g., time-trials or time-to-exhaustion tests), muscular endurance (e.g., repetitions performed to muscular failure), and rating of perceived exertion (RPE) were examined in a random-effects meta-analysis. Fourteen studies (n = 183) were included in the review. Most studies provided capsaicin or capsiate in the dose of 12 mg, 45 min before exercise. In the meta-analysis for aerobic endurance, there was no significant difference between the placebo and capsaicin/capsiate conditions (Cohen's d: 0.04; 95% confidence interval: −0.16, 0.25; p = 0.69). In subgroup meta-analyses, there were no significant differences between the placebo and capsaicin/capsiate conditions when analyzing only studies that used time-trials (p = 0.20) or time-to-exhaustion tests (p = 0.80). In the meta-analysis for muscular endurance, a significant ergogenic effect of capsaicin/capsiate was found (Cohen's d: 0.27; 95% confidence interval: 0.10, 0.43; p = 0.002). When analyzing set-specific effects, an ergogenic effect of capsaicin/capsiate was found in set 1, set 2, and set 3 (Cohen's d: 0.21–29). Capsaicin/capsiate ingestion reduced RPE following muscular endurance (p = 0.03) but not aerobic endurance tests (p = 0.58). In summary, capsaicin/capsiate supplementation acutely enhances muscular endurance, while the effects on aerobic endurance are less clear.
- Subjects
THERAPEUTIC use of capsaicin; RESISTANCE training; ONLINE information services; ENDURANCE sports training; META-analysis; AEROBIC exercises; SYSTEMATIC reviews; DIETARY supplements; BODY movement; DESCRIPTIVE statistics; MEDLINE; CAPSAICIN
- Publication
Nutrients, 2022, Vol 14, Issue 21, p4531
- ISSN
2072-6643
- Publication type
Article
- DOI
10.3390/nu14214531