caffeine/Finding
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No detected effect on choice reaction time
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.FindingNull result“No significant effects of CAF, NAP, and CAF + NAP on simple reaction time, choice reaction time, and Epworth Sleepiness Scale were found.”
Quoted verbatim from Napping, Caffeine, and Their Combination Enhanced Explosivity and Repeated-Sprint Performance: A Randomized Placebo-Controlled Study.. - Study
- crossover
- Dose
- Caffeine 5 mg/kg, single acute dose, ingested in the early evening (~18:00)
- Population
- 13 physical education students; randomized, counterbalanced, double-blind 4-condition crossover (PLA, NAP, CAF, NAP+CAF)
Napping, Caffeine, and Their Combination Enhanced Explosivity and Repeated-Sprint Performance: A Randomized Placebo-Controlled Study.2026PMID:42086212Permalink
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To cite this finding: https://catalystproject.ai/e/01M2R8A4FFXSC2YAT0FJH7HKBR