Sodium citrate supplementation enhances tennis skill performance: a crossover, placebo-controlled, double blind study
Background: The efficacy of sodium citrate supplementation (SC) in exercise performance is unclear. Therefore, the aim of this study was to investigate the effect of SC on skilled tennis performance.
Methods: Ten Brazilian nationally-ranked young male tennis players (age: 17 ± 1 yrs.; stature: 176.7 ± 5.2 cm; body mass: 68.4 ± 7.9 kg) participated in this crossover, placebo-controlled, double-blind study. Upon arrival, at baseline, in both experimental sessions blood was collected, then subjects ingested either sodium citrate (SC - 0.5 g.kg-1BM in capsules of 500 mg) or a placebo (PLA). Two hours later, pre-match blood was collected then skills tests (skill tennis performance test - STPT, repeated-sprint ability shuttle test - RSA) were performed followed by a 1-h simulated match. Immediately following the match, blood was again collected, and STPT, and RSA were administered.
Results: All metabolic parameters (i.e. base excess, pH, bicarbonate, and blood lactate) increased (p < 0.001) from baseline to pre-match and post-match in SC condition. Each metabolic parameter was greater (p < 0.001) in SC compared to PLA condition at both pre- and post-match. The SC condition elicited a greater (p < 0.01) shot consistency at post-match in the STPT vs. PLA condition (SC: 58.5 ± 14.8% vs. PLA: 40.4 ± 10.4%). A greater (p < 0.001) amount of games won was observed in the simulated match for SC condition vs. PLA condition (SC: 8.0 ± 1.6 vs. PLA: 6.0 ± 1.7). Additionally, the games won during the simulated match in SC condition was positively correlated with percentage shot consistency (r = 0.67, p < 0.001).
Conclusions: The current findings suggest that SC supplementation is an effective ergogenic aid to enhance skilled tennis performance.
© Copyright 2019 Journal of the International Society of Sports Nutrition. Taylor & Francis. Kaikki oikeudet pidätetään.
Aiheet: | ravitsemus lisäravinteiden käyttö ergogeeninen apu aineenvaihdunta suorituskyky taito tennis |
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Aihealueet: | biologiset ja lääketieteelliset tieteet urheilukilpailut |
DOI: | 10.1186/s12970-019-0297-4 |
Julkaisussa: | Journal of the International Society of Sports Nutrition |
Julkaistu: |
2019
|
Vuosikerta: | 16 |
Numero: | 32 |
Sivuja: | 1-8 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |