1
|
Bernardo MF, Enes A, Rezende EF, Okuyama AR, Alves RC, de Andrade M, Macedo ACG, de Barros MP, Candow DG, Forbes SC, Souza-Junior TP. Caffeine Does Not Alter Performance, Perceptual Responses, and Oxidative Stress After Short Sprint Interval Training. Int J Sport Nutr Exerc Metab 2024; 34:179-187. [PMID: 38266627 DOI: 10.1123/ijsnem.2023-0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/28/2023] [Accepted: 12/04/2023] [Indexed: 01/26/2024]
Abstract
Despite the abundance of research investigating the efficacy of caffeine supplementation on exercise performance, the physiological and biochemical responses to caffeine supplementation during intermittent activities are less evident. This study investigated the acute effects of caffeine supplementation on measures of exercise performance, ratings of perceived exertion, and biomarkers of oxidative stress induced by an acute bout of sprint interval training. In a randomized crossover design, 12 healthy males (age: 26 ± 4 years, height: 177.5 ± 6 cm, body mass: 80.7 ± 7.6 kg) ingested 6 mg/kg of caffeine or placebo 60 min prior to performing sprint interval training (12 × 6 s "all-out sprints" interspersed by 60 s of rest). Performance scores and ratings of perceived exertion were assessed after every sprint. Blood samples were collected before supplementation, prior to and following each sprint, and 5 and 60 min after the last sprint. Caffeine had no effect on any performance measures, ratings of perceived exertion, or biomarkers of oxidative stress (p > .05). In conclusion, caffeine supplementation does not improve performance or decrease oxidative stress after an acute bout of sprint interval training.
Collapse
Affiliation(s)
- Mauro F Bernardo
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Alysson Enes
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Elisangela F Rezende
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Alexandre R Okuyama
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Ragami C Alves
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Murilo de Andrade
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Ana Carolina G Macedo
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| | - Marcelo Paes de Barros
- Institute of Physical Activity and Sports Science (ICAFE), Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Darren G Candow
- Faculty of Kinesiology and Health Studies, University of Regina, Regina, SK, Canada
| | - Scott C Forbes
- Department of Physical Education Studies, Brandon University, Brandon, MB, Canada
| | - Tácito P Souza-Junior
- Metabolism, Nutrition and Strength Training Research Group, Federal University of Paraná, Curitiba, PR, Brazil
| |
Collapse
|