La supplémentation en thé vert favorise le volume d'exercice chez les hommes non entraînés souffrant de fatigue cumulée

A. S. Machado, W. da Silva, C. F. de Andrade, C. I. De la Fuente, M. A. de Souza, F. P. Carpes

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

Objectives: Cumulative fatigue is an unwanted result of consecutive days of exercise. We hypothesize that a natural antioxidant such as green tea extract from Camellia sinensis could reduce the effects of cumulative fatigue. Here we determine whether green tea extract could prevent muscle damage and preserve neuromuscular activity in a condition of cumulative fatigue. Equipment and methods: Sixteen untrained men were divided into intervention (500 mg green tea extract) and placebo (500 mg celulomax E) groups and tested for biceps brachii strength and neuromuscular electrical activity, muscle damage, and oxidative status before and after cumulative fatigue induced by two consecutive days of biceps curl exercise. In fatigue induction, work volume was assessed. The significance level adopted was 0.05. Results: Cumulative fatigue caused muscle damage in both groups (P < 0.01) without affecting strength. The green tea extract group was able to sustain the exercise volume (P = 0.43), while it was reduced for the placebo group (P = 0.04). The green tea extract group showed preserved neuromuscular activity (entropy and frequency slope) compared to placebo. The green tea extract group showed stable oxidative status (P = 0.09), which was increased in placebo (P = 0.03). Conclusion: Green tea extract supplementation did not affect the magnitude of muscle damage after cumulative fatigue but helped preserve neuromuscular performance and maintain exercise volume by minimizing oxidative stress resulting from cumulative fatigue.

Título traducido de la contribuciónGreen tea supplementation favors exercise volume in untrained men under cumulative fatigue
Idioma originalFrancés
PublicaciónScience and Sports
DOI
EstadoEn prensa - 2022
Publicado de forma externa

Palabras clave

  • Electromyography
  • Exercise recovery
  • Exhaustion
  • Muscle damage
  • Oxidative status

Áreas temáticas de ASJC Scopus

  • Ortopedia y medicina del deporte

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