Effects of Beetroot Juice Supplementation on Cognitive Function, Aerobic and Anaerobic Performances of Trained Male Taekwondo Athletes: A Pilot Study

Miraftabi, H., Avazpoor, Z., Berjisian, E., Sarshin, A., Rezaei, S., Domínguez, R., Reale, R., Franchini, E., Samanipour, M.H., Koozehchian, M.S., Willems, Mark E. T., Rafiei, R. and Naderi, A. (2021) Effects of Beetroot Juice Supplementation on Cognitive Function, Aerobic and Anaerobic Performances of Trained Male Taekwondo Athletes: A Pilot Study. International Journal of Environmental Research and Public Health, 18 (19). ISSN 1660-4601

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Abstract

Studies have shown that nitrate (NO3−)-rich beetroot juice (BJ) supplementation improves endurance and high-intensity intermittent exercise. The dose–response effects on taekwondo following BJ supplementation are yet to be determined. This study aimed to investigate two acute doses of 400 mg of NO3− (BJ-400) and 800 mg of NO3− (BJ-800) on taekwondo-specific performance and cognitive function tests compared with a placebo (PL) and control (CON) conditions. Eight trained male taekwondo athletes (age: 20 ± 4 years, height: 180 ± 2 cm, body mass: 64.8 ± 4.0 kg) completed four experimental trials using a randomized, double-blind placebo-controlled design: BJ-400, BJ-800, PL, and CON. Participants consumed two doses of BJ-400 and BJ-800 or nitrate-depleted PL at 2.5 h prior to performing the Multiple Frequency Speed of Kick Test (FSKT). Countermovement jump (CMJ) was performed before the (FSKT) and PSTT, whereas cognitive function was assessed (via the Stroop test) before and after supplementation and 10 min following PSTT. Blood lactate was collected before the CMJ tests immediately and 3 min after the FSKT and PSST; rating of perceived exertion (RPE) was recorded during and after both specific taekwondo tests. No significant differences (p > 0.05), with moderate and large effect sizes, between conditions were observed for PSTT and FSKT performances. In addition, blood lactate, RPE, heart rate, and CMJ height were not significantly different among conditions (p > 0.05). However, after the PSTT test, cognitive function was higher in BJ-400 compared to other treatments (p 0.05). It was concluded that acute intake of 400 and 800 mg of NO3−rich BJ reported a moderate to large effect size in anaerobic and aerobic; however, no statistical differences were found in taekwondo-specific performance.

Item Type: Article
Additional Information: Miraftabi, H.; Avazpoor, Z.; Berjisian, E.; Sarshin, A.; Rezaei, S.; Domínguez, R.; Reale, R.; Franchini, E.; Samanipour, M.H.;Koozehchian, M.S.; et al. Effects of Beetroot Juice Supplementation on Cognitive Function, Aerobic and Anaerobic Performances of Trained Male Taekwondo Athletes: A Pilot Study. Int. J. Environ. Res. Public Health 2021, 18, 10202. https://doi.org/10.3390/ijerph181910202. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords: combat sport, ergogenic aid, high-intensity intermittent performance, martial arts
Subjects: Q Science > Q Science (General)
Q Science > QP Physiology
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Departments > Sport and Exercise Sciences
SWORD Depositor: Publications Router Jisc
Depositing User: Publications Router Jisc
Date Deposited: 08 Oct 2021 09:47
Last Modified: 08 Oct 2021 09:47
URI: http://eprints.chi.ac.uk/id/eprint/5972

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