| dc.creator | Cuenca, Eduardo | |
| dc.creator | Jodra, Pablo | |
| dc.creator | Pérez-López, Alberto | |
| dc.creator | González-Rodríguez, Liliana G. | |
| dc.creator | Silva, Sandro Fernandes da | |
| dc.creator | Veiga-Herreros, Pablo | |
| dc.creator | Domínguez, Raúl | |
| dc.date | 2019-06-12T18:12:13Z | |
| dc.date | 2019-06-12T18:12:13Z | |
| dc.date | 2018 | |
| dc.date.accessioned | 2023-09-28T19:58:04Z | |
| dc.date.available | 2023-09-28T19:58:04Z | |
| dc.identifier | CUENCA, E. et al. Effects of beetroot juice supplementation on performance and fatigue in a 30-S all-out sprint exercise: a randomized, double-blind cross-over study. Nutrients, [S.l.], v. 10, n. 9, 2018. | |
| dc.identifier | https://www.mdpi.com/2072-6643/10/9/1222 | |
| dc.identifier | http://repositorio.ufla.br/jspui/handle/1/34743 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/9041282 | |
| dc.description | As a nitric oxide precursor, beetroot juice (BJ) is known to enhance high-intensity exercise performance (80–100% VO2max) yet its impacts on higher intensity sprint exercise (>100% VO2max) remain to be established. This study sought to examine the effects of BJ supplementation on performance and subsequent fatigue during an all-out sprint exercise. Using a randomized cross-over, double-blind, placebo-controlled design, 15 healthy resistance-trained men (22.4 ± 1.6 years) ingested 70 mL of either BJ or placebo. Three hours later, participants undertook a 30-s all-out Wingate test. Before and after the sprint exercise and at 30 s and 180 s post-exercise, three countermovement jumps (CMJ) were performed and blood lactate samples were obtained. Compared to placebo, BJ consumption improved peak (placebo vs. BJ, 848 ± 134 vs. 881 ± 135 W; p = 0.049) and mean (641 ± 91 vs. 666 ± 100 W; p = 0.023) power output and also reduced the time taken to reach Wpeak in the Wingate test (8.9 ± 1.4 vs. 7.3 ± 0.9 s; p = 0.003). No differences were detected in the fatigue index. In addition, while over time CMJ height and power diminished (ANOVA p < 0.001) and blood lactate levels increased (ANOVA p < 0.001), no supplementation effect was observed. Our findings indicate that while BJ supplementation improved performance at the 30-s cycling sprint, this improvement was not accompanied by differences in fatigue during or after this type of exercise | |
| dc.language | en_US | |
| dc.publisher | MDPI | |
| dc.rights | restrictAccess | |
| dc.source | Nutrients | |
| dc.subject | Nitric oxide | |
| dc.subject | Nitrates | |
| dc.subject | Muscle power | |
| dc.subject | Muscle fatigue | |
| dc.title | Effects of beetroot juice supplementation on performance and fatigue in a 30-S all-out sprint exercise: a randomized, double-blind cross-over study | |
| dc.type | Artigo | |
