Papers/PMID:38158179
Does ergogenic effect of caffeine supplementation depend on CYP1A2 genotypes? A systematic review with meta-analysis.
Journal of sport and health science2024The record
1 finding drawn from this paper, on 1 compound across 1 endpoint, 1 of them null.
What it reported
How to read these marksEvery finding here is a null result.
What did not
1 finding
caffeine — no detected effect on countermovement jump height
SuggestiveGrade C, Suggestive. Weak human evidence, or strong evidence in a mismatched population.FindingNull result“CMJ performance was not improved by caffeine supplementation (WMD = 1.17, 95%CI: –0.02 to 2.36, p = 0.05).”
Quoted verbatim from Does ergogenic effect of caffeine supplementation depend on CYP1A2 genotypes? A systematic review with meta-analysis.. - Study
- meta-analysis
- Dose
- Acute single dose, 2-6 mg/kg, ingested before the performance test
- Population
- Healthy young adults (active and sedentary), pooled across CYP1A2 genotypes; countermovement jump height in cm per the review Methods; secondary endpoint (the review primary outcome was CYP1A2 genotype)
Effect 1.17 mean difference, 95% CI -0.02 to 2.36
Does ergogenic effect of caffeine supplementation depend on CYP1A2 genotypes? A systematic review with meta-analysis.2024PMID:38158179