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Res Q Exerc Sport ; 95(2): 546-554, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38100570

RESUMEN

Purpose: The aim of the present study was to investigate the effects of acute caffeine supplementation on the performance during a session of resistance training alone (RT) or in combination with aerobic training (i.e. concurrent training; CT). Method: Fourteen resistance-trained men (23.1 ± 4.2 years) were recruited and performed both RT and CT under three different conditions: control (CONT), placebo (PLA), and caffeine (CAF; 6 mg.kg-1) for a total of six experimental conditions. Results: Both total and per set number of repetitions, and total volume load were lower during CT as compared to RT, irrespective of the supplementation condition (all p < .001), whereas a supplementation main effect was observed for the total number of repetitions (p = .001), the number of repetitions in the first (p = .002) and second sets (p = .001), and total volume load (p = .001). RPE values were higher after the CT sessions than after the RT sessions (p < .001), whereas no differences were observed between supplementation conditions (p = .865). Conclusions: Caffeine supplementation was not sufficient to minimize the acute interference effect on strength performance in a CT session when compared to RT alone. In contrast, caffeine improved strength performance during the first set of both CT and RT, while maintaining a similar RPE between the supplementation conditions. However, the overall effect was small.


Asunto(s)
Cafeína , Estudios Cruzados , Entrenamiento de Fuerza , Humanos , Cafeína/administración & dosificación , Masculino , Entrenamiento de Fuerza/métodos , Adulto Joven , Método Doble Ciego , Adulto , Suplementos Dietéticos , Rendimiento Atlético/fisiología , Fuerza Muscular/efectos de los fármacos , Fuerza Muscular/fisiología , Esfuerzo Físico/fisiología
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