4
2
↑4
↓0
—2
Evidence suggests Caffeine mayincreaseHeart rate.
6 studies (6 claims)
Emerging evidence
Typical effective dose 5 (3.25–5.5) mgacross 3 dosed studies
Study Claims
| Intervention | Direction | Endpoint | Type | Population | Dosage | Title |
|---|---|---|---|---|---|---|
| caffeine | Increases - increased | heart rate | Human | 16 male cyclists | Not available | The Effects of Caffeine on Heart Rate and Heart Rate Variability at Rest and During Submaximal Cycling Exercise. |
| weight loss supplement | Increases - significant condition∗time interactions | heart rate | Human | 31 participants | — | A caffeine containing weight loss supplement augments hemodynamic responses after exercise.cited 4× |
| maltodextrin alone or associated to caffeine | No effect - did not change significantly | heart rate | Human | T2DM subjects | 1.5 mg/kg of caffeine. | Caffeine modifies blood glucose availability during prolonged low-intensity exercise in individuals with type-2 diabetes.cited 7× |
| all supplements | Increases - significantly increased | heart rate | Human | Twelve healthy men | Not specified (supplements ingested three times daily). | Multiple dosing of ephedra-free dietary supplements: hemodynamic, electrocardiographic, and bacterial contamination effects.cited 6× |
| caffeine supplementation | Increases - increased | heart rate | Human | human participants | 3-6 mg·kg | Caffeine and Physiological Responses to Submaximal Exercise: A Meta-Analysis.cited 42× |