The Setup:
- 10 nationally-ranked tennis players
- Double-blind, crossover design
- Sodium citrate vs. placebo
- Measured: stroke accuracy, stroke consistency, games won, metabolic markers
Performance Improvements:
Shot Consistency:
- Sodium citrate: 58.5% ± 14.8%
- Placebo: 40.4% ± 10.4%
- Difference: 45% improvement (p < 0.01)
Games Won During Match:
- Sodium citrate: 8.0 ± 1.6 games
- Placebo: 6.0 ± 1.7 games
- Difference: 33% more games won (p < 0.001)
Sprint Fatigue:
- Placebo: 4.76% performance decline from sprint 1 to sprint 10
- Sodium citrate: Only 0.1% decline
References
Cunha VCR, Aoki MS, Zourdos MC, Gomes RV, Barbosa WP, Massa M, Moreira A, Capitani CD. Sodium citrate supplementation enhances tennis skill performance: a crossover, placebo-controlled, double blind study. J Int Soc Sports Nutr. doi: 10.1186/s12970-019-0297-4. Study examined sodium citrate; Tenel contains sodium citrate as the primary sodium source.