The Effects of Caffeine on Heart Rate and Heart Rate Variability at Rest and During Submaximal Cycling Exercise.
Research quarterly for exercise and sport
March 1, 2025
Mark Glaister et al. (3 authors)
Journal ArticleRandomized Controlled TrialHuman StudyClinical
Study Details
Study Goal
The researchers aimed to investigate the effects of caffeine on heart rate and heart rate variability (HRV) at rest and during submaximal exercise.
Results Summary
The abstract does not provide specific results regarding caffeine's effects on heart rate or HRV.
Population
16 male cyclists (age: 37 ± 9 years).
Effective Dosage
Not available
Duration
Not available
Interactions
None mentioned
Extracted Claims (2)
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
caffeine | increase | heart rate | 16 male cyclists | - | increased | #1 |
caffeine | decrease | heart rate variability (HRV) | 16 male cyclists | - | decreased | #2 |
Abstract
The aim of this study was to investigate the effects of caffeine on heart rate and heart rate variability (HRV) at rest and during submaximal exercise. Using a balanced, double-blind, randomized, crossover design, 16 male cyclists (age: 37 ± 9 years;
Medical Subject Headings (MeSH)
HumansHeart RateCaffeineMaleBicyclingCross-Over StudiesAdultDouble-Blind MethodOxygen ConsumptionRestExercise TestCentral Nervous System StimulantsMiddle Aged
Study Links
PubMed ID39008947
Quality Scores
SafetyNot Assessed
Efficacy75/10
Quality85/10
Research Impact Scores
APT Score0.05
Weight Score2.70
Normalized Score0.67
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