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oai:recercat.cat:20.500.12367/22042026-02-18T08:59:18Zcom_2072_484362col_2072_484363

00925njm 22002777a 4500 dc Garnacho-Castaño, Manu author Sánchez-Nuño, Sergio author Molina-Raya, Lorena author Carbonell, Teresa author Maté-Muñoz, José Luis author Pleguezuelos, Eulogio author Serra Paya, Noemi author 2022-06-11 This study aimed to determine the effects of circulating nitrate plus nitrite (NOx) concentrations on resistance exercise performance, VO2 and biomarkers of muscle damage. Eleven well-trained male CrossFit athletes (29.2 ± 3.7 years, 78.9 ± 5.4 kg, 175.1 ± 6.3 cm) carried out a resistance exercise test after drinking 140 mL of beetroot juice (BJ) or placebo. The test consisted of repeating the same resistance exercise routine twice: wall ball shots plus full back squat with 3-min rest (1st routine) or without rest (2nd routine) between the two exercises. Higher NOx plasma levels were verified after BJ than placebo in the pretest and post-test (p < 0.001). A higher number of repetitions was observed after BJ intake compared to placebo in the full back squat exercise during the first routine (p = 0.004). A significantly reduced VO2 was detected after BJ intake compared to placebo during rest and full back squat execution in the first routine (p < 0.05) [...]. Garnacho-Castaño M, Sánchez-Nuño S, Molina-Raya L, Carbonell T, Maté-Muñoz JL, Pleguezuelos E, et al. Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit atletes. Sci Rep. 2022 Jun 11;12:9671. DOI: 10.1038/s41598-022-13786-x 2045-2322 https://hdl.handle.net/20.500.12367/2204 10.1038/s41598-022-13786-x Physiology Prognostic markers Circulating nitrate-nitrite reduces oxygen uptake for improving resistance exercise performance after rest time in well-trained CrossFit athletes