Effects of caffeine ingestion on rating of perceived exertion during and after exercise: a meta‐analysis

@article{Doherty2005EffectsOC,
  title={Effects of caffeine ingestion on rating of perceived exertion during and after exercise: a meta‐analysis},
  author={Mike Doherty and P M Smith},
  journal={Scandinavian Journal of Medicine \& Science in Sports},
  year={2005},
  volume={15}
}
  • M. Doherty, P. Smith
  • Published 1 April 2005
  • Psychology
  • Scandinavian Journal of Medicine & Science in Sports
The purpose of this study was to use the meta‐analytic approach to examine the effects of caffeine ingestion on ratings of perceived exertion (RPE). Twenty‐one studies with 109 effect sizes (ESs) met the inclusion criteria. Coding incorporated RPE scores obtained both during constant load exercise (n=89) and upon termination of exhausting exercise (n=20). In addition, when reported, the exercise performance ES was also computed (n=16). In comparison to placebo, caffeine reduced RPE during… 
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