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PapersPMID:18799995

Caffeine supplementation and multiple sprint running performance.

Medicine and science in sports and exercise2008The record ↗

01 · findings
2
02 · compound
1
03 · endpoints
2
04 · null
1
  1. Finding, very limited evidenceraisesRepeated-sprint performance decrement
  2. Finding, very limited evidenceno effectRating of perceived exertion
Dose studied, every finding
5 mg/kg body mass caffeine, single dose 1 h before exercise
Population, every finding
physically active men, indoor multiple sprint running trial (12 x 30 m, repeated at 35-s intervals)

What moved

1 findingHow to read these marks →
  • caffeine — increases repeated-sprint performance decrement

    very limitedFinding

    “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

    Permalink

What did not

1 finding
  • caffeine — no detected effect on rating of perceived exertion

    very limitedFindingNull resultreplicated ×10

    “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

    Permalink

Study record

Read under
caffeine
Design
randomised controlled trial
Species
human
Population
21 physically active men
Participants
21
Comparator
placebo
Duration
not recorded
Endpoints measured
5
Record
extracted
Readings recorded
2