Quick Answer
Sodium Bicarbonate Endurance Exercise Meta-Analysis has evidence relevant to benefits, uncertainty, and practical interpretation, but conclusions should stay close to the cited sources. One representative finding is: Risk of bias was assessed using the Cochrane Risk of Bias 2 (RoB 2) tool, and certainty of evidence was evaluated using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.
Key Takeaways
- 01Risk of bias was assessed using the Cochrane Risk of Bias 2 (RoB 2) tool, and certainty of evidence was evaluated using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. [Ge X (2026)]
- 02NaHCO3 ingestion increased post-exercise blood lactate (MD = 1.73 mmol/L, 95% CI: 0.97 to 2.49), HCO3- (MD = 2.73 mmol/L, 95% CI: 2.16 to 3.30), and pH (MD = 0.050, 95% CI: 0.025 to 0.075). [Ge X (2026)]
- 03Certainty of evidence was low for HIIE performance and HCO3- and very low for blood lactate and pH. [Ge X (2026)]
- 04Background Sodium bicarbonate (NaHCO3) ingestion can induce extracellular alkalosis, but its effects on high-intensity intermittent exercise (HIIE) performance in team sports remain unclear. [Ge X (2026)]
The current Migaku evidence database contains 2 reusable source documents for Sodium Bicarbonate Endurance Exercise Meta-Analysis. This answer focuses on benefits, uncertainty, and practical interpretation.
- Risk of bias was assessed using the Cochrane Risk of Bias 2 (RoB 2) tool, and certainty of evidence was evaluated using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. [Ge X (2026); evidence level 1]
- NaHCO3 ingestion increased post-exercise blood lactate (MD = 1.73 mmol/L, 95% CI: 0.97 to 2.49), HCO3- (MD = 2.73 mmol/L, 95% CI: 2.16 to 3.30), and pH (MD = 0.050, 95% CI: 0.025 to 0.075). [Ge X (2026); evidence level 1]
- Certainty of evidence was low for HIIE performance and HCO3- and very low for blood lactate and pH. [Ge X (2026); evidence level 1]
- Background Sodium bicarbonate (NaHCO3) ingestion can induce extracellular alkalosis, but its effects on high-intensity intermittent exercise (HIIE) performance in team sports remain unclear. [Ge X (2026); evidence level 1]
- Purpose We tested the hypotheses that sodium bicarbonate (SB) supplementation improves performance, reduces markers of acute kidney injury (AKI) risk, and increases markers of acute gastrointestinal injury (AGI) during repeated sprints in the heat. [Specht JW (2026); evidence level 4]
Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording.
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Sources
- Effects of acute or short-term oral sodium bicarbonate supplementation on high-intensity intermittent exercise performance and physiological responses in team-sport athletes: a systematic review and meta-analysis.
- Effect of sodium bicarbonate on performance and markers of kidney and gastrointestinal injury during repeated sprints in the heat.