Papers/PMID:18799995
Caffeine supplementation and multiple sprint running performance.
Medicine and science in sports and exercise2008The record
2 findings drawn from this paper, on 1 compound across 2 endpoints, 1 of them null.
What it reported
How to read these marksWhat moved
1 finding
caffeine — increases repeated-sprint performance decrement
PreliminaryGrade D, Preliminary. Non-human or in vitro only.Finding“Relative to placebo, caffeine supplementation resulted in a 0.06-s (1.4%) reduction in fastest sprint time (95% likely range = 0.04-0.09 s), which corresponded with a 1.2% increase in fatigue (95% likely range = 0.3-2.2%).”
Quoted verbatim from Caffeine supplementation and multiple sprint running performance.. - Study
- RCT
- Participants
- 21
- Dose
- 5 mg/kg body mass caffeine, single dose 1 h before exercise
- Population
- physically active men, indoor multiple sprint running trial (12 x 30 m, repeated at 35-s intervals)
Caffeine supplementation and multiple sprint running performance.2008PMID:18799995
What did not
1 finding
caffeine — no detected effect on rating of perceived exertion
PreliminaryGrade D, Preliminary. Non-human or in vitro only.FindingNull resultreplicated ×6“In contrast, there was no significant effect of caffeine supplementation on RPE.”
Quoted verbatim from Caffeine supplementation and multiple sprint running performance.. - Study
- RCT
- Participants
- 21
- Dose
- 5 mg/kg body mass caffeine, single dose 1 h before exercise
- Population
- physically active men, indoor multiple sprint running trial (12 x 30 m, repeated at 35-s intervals)
Caffeine supplementation and multiple sprint running performance.2008PMID:18799995