Capsaicin Analogue Supplementation Does Not Improve 10 km Running Time-Trial Performance in Male Amateur Athletes: A Randomized, Crossover, Double-Blind and Placebo-Controlled Study

Author(s)

von Ah Morano, Ana Elisa ^[1] ; Padilha, Camila S. ^[1] ; Soares, Vinicius Aparecido Matos ^[1] ; Andrade Machado, Fabiana ^{[2, 3]} ; Hofmann, Peter ^[4] ; Rossi, Fabricio E. ^{[1, 5]} ; Lira, Fabio Santos ^[1]

Affiliation

^[1] Sao Paulo State Univ UNESP, Dept Phys Educ, Exercise & Immunometab Res Grp, BR-19060900 Presidente Prudente - Brazil

^[2] Univ Estadual Maringa, Dept Physiol Sci, Postgrad Program Physiol Sci, BR-87020900 Maringa, Parana - Brazil

^[3] Univ Estadual Maringa, Dept Phys Educ, Associate Postgrad Program Phys Educ UEM UEL, BR-87020900 Maringa, Parana - Brazil

^[4] Karl Franzens Univ Graz, Inst Human Movement Sci Sport & Hlth, Exercise Physiol Training & Training Therapy Res, A-8036 Graz - Austria

^[5] Fed Univ Piaui UFPI, Immunometab Skeletal Muscle & Exercise Res Grp, BR-64049550 Teresina Pi - Brazil

• Document type: Journal article
• Source: NUTRIENTS; v. 13, n. 1 JAN 2021.
• Web of Science Citations: 1

Abstract

Background: To investigate the acute effects of a capsaicin analogue supplement on 10 km time-trial performance and physiological responses in amateur athletes. Methods: 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%, VO2max 62.7 +/- 8.4 mL center dot k(-1)center dot min(-1)), 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 (HRpeak), and rating of perceived exertion (RPE) were recorded. Results: The 10 km time-trial performance (CAP = 45.07 +/- 6.41 min vs. PLA = 45.13 +/- 6.73, p = 0.828) was not statistically significantly different between conditions. No statistically significant differences between conditions were detected for lactate concentration (p = 0.507), HRpeak (p = 0.897) and RPE (p = 0.517). Conclusion: 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. (AU)

• FAPESP's process: 19/05295-5 - Impact of capsaicin supplementation associated with aerobic physical training on visceral adipose tissue
• Grantee: Vinicius Aparecido Matos Soares
• Support Opportunities: Scholarships in Brazil - Scientific Initiation