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PapersPMID:29509641

Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes.

Medicine and science in sports and exercise2018The record ↗

01 · finding
1
02 · compound
1
03 · endpoint
1
04 · null
0
  1. Finding, very limited evidencelowersTime-trial completion time

What moved

1 findingHow to read these marks →
  • caffeine — decreases time-trial completion time

    very limitedFindingreplicated ×5

    “Overall, 4 mg·kg caffeine decreased cycling time by 3% (mean ± SEM) versus placebo (17.6 ± 0.1 vs 18.1 ± 0.1 min, P = 0.01).”
    Quoted verbatim from Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes.
    Study
    crossover
    Participants
    101
    Dose studied
    4 mg/kg caffeine, single dose
    Population
    competitive male athletes, whole cohort pooled across CYP1A2 genotypes, 10-km cycling time trial

    Permalink

Study record

Read under
caffeine
Design
crossover trial
Species
human
Population
101 competitive male athletes, genotyped for CYP1A2 -163A>C (rs762551)
Participants
101
Comparator
another dose / placebo
Duration
not recorded
Endpoints measured
4
Record
extracted
Readings recorded
2