Document Type : Review Article
Authors
1 University of Kashan
2 Department of Physical Education and Sport Sciences, Faculty of Human Sciences, University of Kashan, Kashan, Iran.
Abstract
Purpose: Beetroot juice (BRJ) is rich in inorganic nitrates (NO3-), which have ergogenic properties. However, there are currently no systematic analyzes evaluating the effects of acute nitrate supplementation exclusively on anaerobic performance in trained and athletic subjects. Therefore, the aim of this study is to systematically review the current literature and evaluate. The effect of acute consumption of beet juice supplement on anaerobic performance indicators in trained individuals. Methodology: A systematic text search was conducted for English and Persian articles until September 2024. Mean difference and 95% confidence interval (CI) were calculated using random effect model. Findings: 11 studies with 140 healthy young adult who exercised or exercised (42 women and 98 men), with an average age of 20.3 to 30.86 and an average BMI of 20.41 to 24.21 were included in the present meta-analysis. The results showed that acute consumption of red beet juice supplement has no significant effect on anaerobic performance indicators, including maximum power [SMD=-0.109, P=0.33], minimum power [SMD=-0.120, P=0.25], Mean anaerobic power [SMD=-0.134, P=0.13] and fatigue index [SMD=-0.105, P=0.56] in trained people and athletes. Conclusion: In general, the results of this meta-analysis showed that acute beetroot juice supplementation does not provide any significant improvement in anaerobic performance indicators. Future research can investigate the energy-generating potential by optimizing the beetroot supplementation strategy in terms of dosage, beetroot juice supplementation in chronic and short-term forms.
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