2026-09-27T23:41:43Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/121292026-09-24T00:05:37Zcom_10259_11209com_10259_5086com_10259_2604col_10259_11210

Impact of a short-term nitrate and citrulline co-supplementation on sport performance in elite rowers: a randomized, double-blind, placebo-controlled crossover trial Viribay, Aitor Alcantara, Juan M. A. López, Iker Mielgo Ayuso, Juan Castañeda Babarro, Arkaitz Physiology Oxide nitric Supplementation Metabolism Fisiología del ejercicio Sports--Physiological aspects Purpose Citrulline (CIT) and beetroot extract (BR) have separately shown benefits in rowing performance-related outcomes. However, effects of combined supplementation remain to be elucidated. The main purpose of this research was to study the effects of 1 week of daily co-supplementation of 3.5 g BR (500 mg NO3 −) plus 6 g CIT on aerobic performance, maximal strength, and high-intensity power and peak stroke in elite male rowers compared to a placebo and to a BR supplementation. Methods 20 elite rowers participated in this randomized, double-blind, placebo-controlled crossover trial completing 1 week of supplementation in each group of study: Placebo group (PLAG); BR group (BRG); and BR + CIT group (BR-CITG). 3 main physical tests were performed: aerobic performance, Wingate test and CMJ jump, and metabolic biomarkers and physiological outcomes were collected. Results The Wingate all-out test showed no between-condition differences in peak power, mean power, relative power, or fatigue index (P > 0.05), but clearance of lactate was better in BR-CITG (P < 0.05). In the performance test, peak power differed only between PLAG and BR-CITG (P = 0.036), while VO2peak and maximum heart rate remained similar. CMJ jumping test results showed no between-condition differences, and blood samples were consistent (P > 0.200). Conclusion Supplementation with 3.5 g of BR extract plus 6 g of CIT for 7 days improved lactate clearance after Wingate test and peak power in a performance test. No further improvements were found, suggesting longer period of supplementation might be needed to show greater benefits. 2026-09-23T08:47:12Z 2026-09-23T08:47:12Z 2024-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1439-6319 https://hdl.handle.net/10259/12129 10.1007/S00421-024-05415-4 1439-6327 eng European Journal of Applied Physiology. 2024, V. 124, n. 6, p. 1911-1923 https://doi.org/10.1007/s00421-024-05415-4 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf Springer Nature https://riubu.ubu.es/bitstream/10259/12129/4/Viribay-ejap_2024.pdf.jpg Hispana TEXT http://creativecommons.org/licenses/by/4.0/ RIUBU. Repositorio Institucional de la Universidad de Burgos https://hdl.handle.net/10259/12129