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Open AccessReview

Nutritional Ergogenic Aids in Racquet Sports: A Systematic Review

1
Biochemistry and Cell Therapy Unit, Institute of Bioengineering, University Miguel Hernandez, 03201 Elche, Spain
2
Department of Applied Biology-Nutrition, Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), University Miguel Hernandez, 03201 Elche, Spain
3
Departamento de Tecnología de la Alimentación y Nutrición, Universidad Católica de Murcia, 30107 Murcia, Spain
4
CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
*
Author to whom correspondence should be addressed.
To be considered as equal first author.
Present Address: Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Universidad de Sevilla, 41009 Seville, Spain.
Nutrients 2020, 12(9), 2842; https://doi.org/10.3390/nu12092842
Received: 27 August 2020 / Revised: 11 September 2020 / Accepted: 15 September 2020 / Published: 17 September 2020
(This article belongs to the Special Issue Nutrition and Athletic Performance)
A nutritional ergogenic aid (NEA) can help athletes optimize performance, but an evidence-based analysis is required in order to support training outcomes or competition performance in specific events. Racquet sports players are regularly exposed to a high-intensity workload throughout the tournament season. The activity during a match is characterized by variable durations (2–4 h) of repeated high-intensity bouts interspersed with standardized rest periods. Medline/PubMed, Scopus, and EBSCO were searched from their inception until February 2020 for randomized controlled trials (RCTs). Two independent reviewers extracted data, after which they assessed the risk of bias and the quality of trials. Out of 439 articles found, 21 met the predefined criteria: tennis (15 trials), badminton (three trials), paddle (one trial), and squash (two trials). Among all the studied NEAs, acute dosages of caffeine (3–6 mg/kg) 30–60 min before a match have been proven to improve specific skills and accuracy but may not contribute to improve perceived exertion. Currently, creatine, sodium bicarbonate, sodium citrate, beetroot juice, citrulline, and glycerol need more studies to strengthen the evidence regarding improved performance in racquet sports. View Full-Text
Keywords: racquet sports; ergogenic aid; performance; sport supplement racquet sports; ergogenic aid; performance; sport supplement
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Vicente-Salar, N.; Santos-Sánchez, G.; Roche, E. Nutritional Ergogenic Aids in Racquet Sports: A Systematic Review. Nutrients 2020, 12, 2842.

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