Effects of carbohydrate intake on time to exhaustion and anaerobic contribution during supramaximal exercise
Palabras clave:
Anaerobic capacity, Athletic performance, Fatigue, Sports nutritional sciencesResumen
Objective
This study evaluated the effect of carbohydrate intake on time to exhaustion and anaerobic contribution during supramaximal exercise on a cycle ergometer.
Methods
The sample comprised ten participants with a mean age of 23.9±2.5 years, mean body mass of 75.1±12.3 kg, mean height of 170.0±1.0 cm, and mean body fat of 11.3±5.2%. The participants underwent an incremental test to determine maximal oxygen uptake and maximum power output, and two supramaximal tests with a constant load of 110% of the maximum power output to exhaustion. Thirty minutes before the supramaximal tests the participants consumed carbohydrates (2 g.kg-1) or placebo.
Results
The times to exhaustion of carbohydrate and placebo did not differ (carbohydrate: 170.7±44.6s; placebo: 156.1±26.7s, p=0.17; effect size=0.39). Similarly, the anaerobic contributions of the two treatments did not differ (carbohydrate: 3.0±0.9 L; placebo: 2.7±1.1 L, p=0.23; effect size=0.29).
Conclusion
Carbohydrate intake was not capable of increasing time to exhaustion and anaerobic contribution in physically active men cycling at 110% of maximum power output.
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Derechos de autor 2023 Victor José BASTOS-SILVA, Sara Kely LEARSI, Alan de Albuquerque MELO, Adriano Eduardo LIMA-SILVA, Gustavo Gomes de ARAUJO
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
