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Acute effect of decaffeinated coffee on heart rate, blood pressure, and exercise performance in healthy subjects
Journal of the National Medical Association
|January 1, 1988
Insights
Decaffeinated coffee consumption does not appear to impact cardiovascular exercise performance. Studies show no adverse effects on heart rate, blood pressure, or exercise duration in healthy individuals.
Area of Science:
- Cardiovascular Physiology
- Exercise Science
- Nutritional Biochemistry
Background:
- Caffeine is a known stimulant that can affect cardiovascular function and exercise performance.
- Understanding the physiological impact of decaffeinated coffee is important for consumers and athletes.
- Previous research has primarily focused on the effects of caffeinated beverages.
Purpose of the Study:
- To investigate the acute cardiovascular effects of decaffeinated coffee consumption.
- To evaluate the impact of decaffeinated coffee on exercise performance metrics.
- To determine if decaffeinated coffee poses any discernible cardiovascular risks.
Main Methods:
- A double-blind, randomized study design was employed.
- Nine healthy volunteers participated in the study.
- Cardiovascular parameters (heart rate, blood pressure) and electrocardiogram (ECG) were monitored during exercise.
Main Results:
- No significant changes were observed in heart rate or blood pressure.
- Exercise duration remained unaffected by decaffeinated coffee intake.
- No arrhythmias or ischemic changes were detected on the electrocardiogram.
Conclusions:
- Decaffeinated coffee exhibits no acute, adverse cardiovascular effects.
- Consumption of decaffeinated coffee is safe concerning immediate cardiovascular responses during exercise.
- Further research can explore long-term effects or specific populations.
Abstract:
The effect of decaffeinated coffee on the cardiovascular exercise performance in nine healthy volunteers was evaluated in a double-blind randomized fashion. The heart rate, blood pressure, and duration of exercise were unchanged, and no arrhythmias or ischemic changes were seen on the electrocardiogram after drinking decaffeinated coffee. It was concluded that decaffeinated coffee has no discernible, acute, adverse cardiovascular effects.