Single and combined effect of beetroot juice and caffeine intake on muscular strength, power and endurance performance in resistance-trained males.

ABSTRACT: To examine the single and combined effect of acute beetroot juice and caffeine supplementation in muscular strength, power, and endurance performance. Thirteen resistance-trained males participated in a triple-blind, cross-over, randomized controlled-trial with four conditions: (a) caffeine (CAF); (b) beetroot juice (BJ); (c) caffeine and beetroot juice (CAF + BJ); (d) placebo (PLA). Participants ingested 70 mL of beetroot juice, concentrated NO₃^--rich beverage (BJ, 6.4 mmol NO₃^-) or PLA (~ 0.04 mmol NO₃^-) 180 min and caffeine or placebo (3 mg/kg) 60 min before the trial. Muscular strength/power was evaluated at 25%, 50%, 75%, 90% and 100%1RM and muscular endurance at 65%1RM, in bench press (BP) and back squat (BS). In all t

SUBMITTER: Montalvo-Alonso JJ 

PROVIDER: S-EPMC12078514 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature