Papers/PMID:34684665
Does Acute Caffeine Supplementation Improve Physical Performance in Female Team-Sport Athletes? Evidence from a Systematic Review and Meta-Analysis.
Nutrients2021The 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 rating of perceived exertion
LikelyGrade B, Likely. Human evidence, limited replication or design limits.FindingNull result“As shown in C, nine studies evaluated RPE after performing an exercise protocol after caffeine supplementation, finding no effect of this supplement on RPE (SMD: 0.258, 95% CI: −0.048, 0.565; I2 0.26% p = 0.260).”
Quoted verbatim from Does Acute Caffeine Supplementation Improve Physical Performance in Female Team-Sport Athletes? Evidence from a Systematic Review and Meta-Analysis.. - Study
- meta-analysis
- Dose
- Acute oral caffeine, doses across included studies 1.3-6 mg/kg, ingested 60 min before testing
- Population
- Adult female team-sport athletes; RPE recorded after an exercise protocol, pooled across nine studies
Effect 0.258 standardised mean difference, 95% CI -0.048 to 0.565
Does Acute Caffeine Supplementation Improve Physical Performance in Female Team-Sport Athletes? Evidence from a Systematic Review and Meta-Analysis.2021PMID:34684665