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Table 4 Effects of sodium bicarbonate supplementation on exercise performance: summary findings, methodological quality of literature reviews, and quality of evidence

From: Effects of sodium bicarbonate supplementation on exercise performance: an umbrella review

Quality of evidence

Methodological quality of literature reviews

Moderate

High

Meta-analyses that found significant ergogenic effects of sodium bicarbonate

 Low

• Endurance events lasting 45 s to 8 min in Christensen et al. [14]

• Anaerobic power in the Wingate test using the multiple-day supplementation protocol in Lopes-Silva et al. [19]

• 2000-m rowing in Turnes et al. [20]

• Muscle endurance in Grgic et al. [17]

 Moderate

• Anaerobic power in the repeated-bout Wingate test in Grgic [15]

• Yo-Yo test performance in Grgic et al. [16]

Meta-analyses that did not find significant ergogenic effects of sodium bicarbonate

 Low

• General mean power in Carr et al. [13]

• Repeated-sprint ability (total work) in Lopes-Silva et al. [18]

• Anaerobic power in the Wingate test using single-dose supplementation protocol in Lopes-Silva et al. [19]

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 Moderate

• Repeated-sprint ability (best sprint) in Lopes-Silva et al. [18]

• Repeated-sprint ability (last sprint) in Lopes-Silva et al. [18]

• Muscle strength in Grgic et al. [17]

  1. Note: Quality of evidence was evaluated using the GRADE criteria; methodological quality of the review was evaluated using the AMSTAR 2 checklist