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Int J Sports Med 2022; 43(05): 466-472
DOI: 10.1055/a-1502-6563
Nutrition

Effects of Capsiate Supplementation on Maximal Voluntary Contraction in Healthy Men

Willemax dos Santos Gomes
1   Department of Physical Education, Federal University of Pernambuco Recife, Brazil
,
Marcelo Conrado de Freitas 
2   Department of Physical Education, Universidade Estadual Paulista Julio de Mesquita Filho – Campus de Presidente Prudente, Presidente Prudente, Brazil
,
Yago Medeiros Dutra
3   Department of Physical Education, UNESP, Bauru, São Paulo, Brazil
,
Fabrício Rossi
4   Department of Physical Education, Universidade Federal do Piaui, Teresina, Brazil
,
Thiago Barros Estanislau
5   Department of Biosciences, UNIFESP, Santos, Brazil
,
Daniela Caetano Gonçalves
5   Department of Biosciences, UNIFESP, Santos, Brazil
,
Eduardo Zapaterra Campos
1   Department of Physical Education, Federal University of Pernambuco Recife, Brazil
› Author Affiliations Funding This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001.
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Abstract

This study aimed to investigate the effects of acute capsaicin analog (Capsiate - CAP) supplementation on maximal voluntary isometric contraction (MVIC) performance in healthy young men. Thirteen subjects (25.2±3.2 yrs) participated in the present study. In two different days separated by one week, the subjects ingested capsiate (12 mg) or placebo (starch: 12 mg) 45 minutes before a MVIC test. The MVIC test consisted of five 10-second knee extension maximal isometric contractions with 45 seconds of recovery between efforts. The peak force, mean force, minimum force, fatigue index, and area under the curve of each contraction were calculated. Main condition effect was found, with higher values of peak force (+4.83%, F=6.867, p=0.02), fatigue index (+8.96%, F=5.228, p=0.041), and area under the curve (+4.19%, F=4.774, p=0.04) for CAP compared to placebo, however, no interaction effect was found for any variable (F=0.090 to 1.356, p≥0.276). In summary, healthy young men produced higher maximal isometric force and delayed fatigue in the CAP condition compared to placebo condition (condition effect) but without significant difference between each effort.

Key words

ergogenic effects - exercise tests - performance enhancing substances - nutrition


Publication History

Received: 07 November 2020

Accepted: 28 April 2021

Article published online:
19 October 2021

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