Endpoint
Peak power output
CAT:outcome/peak-power-outputreported in W
Method
Highest mechanical power in a single maximal effort, cycle ergometer, typically the first five seconds of a 30-second Wingate test.
The method is part of the endpoint identity. Studies measuring the same quantity by a different method are held as separate endpoints.
Notes
Distinct from mean power over the same test. The two dissociate -- a supplement can raise the peak without changing the mean -- so collapsing them would hide the effect being measured.
Findings
2 findings from 2 compounds, strongest first.
nitrate — no detected effect on
LikelyGrade B, Likely. Human evidence, limited replication or design limits.FindingNull result“A random effects model was performed on six studies and showed that dietary nitrate had significant effects on time-to-peak power (SMD: -0.66, 95% CI: -1.127 to -0.192, p = 0.006) but not on mean power, peak power, or minimum power.”
Quoted verbatim from Effects of Dietary Nitrate Supplementation on High-Intensity Cycling Sprint Performance in Recreationally Active Adults: A Systematic Review and Meta-Analysis.. - Study
- meta-analysis
- Population
- healthy recreationally active adults performing 30-s cycling sprints
magnesium(2+) — no detected effect on
PreliminaryGrade D, Preliminary. Non-human or in vitro only.FindingNull result“The peak power was unaffected by magnesium (655 ± 150 with the placebo vs. 665 ± 185 W with magnesium; p = 0.70).”
Quoted verbatim from Short-Term Magnesium Supplementation Has Modest Detrimental Effects on Cycle Ergometer Exercise Performance and Skeletal Muscle Mitochondria and Negligible Effects on the Gut Microbiota: A Randomized Crossover Clinical Trial.. - Study
- crossover
- Participants
- 13
- Duration
- 9 days
- Dose
- magnesium chloride 300 mg (ReMag) twice per day for 9 days
- Population
- Healthy regularly exercising adults aged 18-40; primary outcome (sprint exercise performance); 30-second all-out cycle ergometer sprint, complete data available for 13 of 15 participants
Short-Term Magnesium Supplementation Has Modest Detrimental Effects on Cycle Ergometer Exercise Performance and Skeletal Muscle Mitochondria and Negligible Effects on the Gut Microbiota: A Randomized Crossover Clinical Trial.2025PMID:40077784Industry funded