How Does the Dose and Type of Exercise Impact Acute Cardiovascular Function in Healthy Individuals?
Robert F Bentley1, Nino Nikolovski1, Jack M Goodman1
1Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, Ontario, Canada.
The Canadian Journal of Cardiology
|December 18, 2024
Summary
Aerobic exercise acutely impacts cardiovascular function, affecting heart and blood vessel performance. Standardizing exercise intensity across modalities is crucial for comparable research on aerobic exercise effects.
Area of Science:
- Cardiovascular Physiology
- Exercise Science
- Sports Medicine
Background:
- Aerobic exercise demands oxygen delivery to muscles and blood pressure regulation.
- Exercise dose (intensity x time) and type (cycling, running, etc.) influence acute cardiovascular responses.
- Different exercise modalities present unique challenges due to medium and body position.
Purpose of the Study:
- To review how acute exercise dose affects cardiovascular function across major aerobic exercise modalities in healthy individuals.
- To identify challenges in comparing exercise dose and its cardiovascular effects across studies.
- To propose future directions for standardizing exercise prescription in research.
Main Methods:
- Literature review of studies examining acute exercise dose and cardiovascular function.
- Analysis of cardiovascular responses (ventricular and vascular function) to various aerobic modalities.
- Identification of methodological differences in exercise prescription and measurement.
Main Results:
- All exercise doses, regardless of modality, can transiently impair systolic and diastolic function of both ventricles and vascular function.
- Quantifying and comparing exercise dose across studies is difficult due to varied methodologies.
- Factors like cardiovascular drift, age, sex, and measurement timing complicate interpretation.
Conclusions:
- Standardizing exercise intensity based on modality-specific physiological thresholds is recommended for comparable doses.
- This standardization will enable more objective comparisons of cardiovascular responses to different aerobic exercises.
- Future research should prioritize consistent exercise prescription to advance understanding of exercise physiology.
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