Effect of Acute Beetroot Juice Supplementation on Bench Press Power, Velocity, and Repetition Volume. Issue 4 (April 2020)

• Record Type: Journal Article
• Authors: Williams, Tyler D.; Martin, Mary P.; Mintz, Jake A.; Rogers, Rebecca R.; Ballmann, Christopher G.
• Is Part Of: Journal of strength and conditioning research. Volume 34:Issue 4(2020)
• Publication Date: 2020-04
• Subjects: nitrate -- ergogenic aid -- resistance training; Physical education and training -- Periodicals; Weight training -- Physiological aspects -- Periodicals; Physical fitness -- Periodicals; 613.7
• DOI: 10.1519/JSC.0000000000003509
• Languages: English
• ISSNs: 1064-8011

Abstract

Abstract : Abstract: Williams, TD, Martin, MP, Mintz, JA, Rogers, RR, and Ballmann, CG. Effect of acute beetroot juice supplementation on bench press power, velocity, and repetition volume. J Strength Cond Res 34(4): 924–928, 2020—The purpose of this study was to examine the effects of acute beetroot juice (BRJ) supplementation on power, velocity, and repetitions to failure (RTF) during bench press exercise. Resistance-trained male subjects ( n = 11) were recruited for this study. Using a double-blinded, counterbalanced, crossover study design, subjects were supplemented with either 70 ml of BRJ or placebo (PL; black currant juice) 2 hours before exercise. During each exercise trial, subjects began by completing 2 sets × 2 repetitions of bench press at 70% 1 repetition maximum (1RM) with maximum explosive intent. Barbell velocity and power were measured using a linear position transducer. Subjects then completed 3 sets × RTF at 70% 1RM separated by 2 minutes of rest between each set. Maximum mean power, velocity, and repetitions were analyzed. Mean velocity ( p = 0.011; effect size [ES] = 0.54) and mean power ( p = 0.015; ES = 0.51) were significantly higher with BRJ when compared with PL. Total RTF ( p = 0.002; ES = 0.46) was higher during the BRJ condition vs. PL. Results indicate that acute BRJ supplementation positively impacts velocity, power, and total repetitions during free-weight bench press exercise.