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[Arterial pressure changes during exertion in the normal subject].
Archives Des Maladies Du Coeur Et Des Vaisseaux
|January 1, 1978
Summary
This study on exercise electrocardiograms in 160 subjects reveals how systolic arterial pressure and cardiac rate adapt to exercise, showing a strong linear relationship influenced by age and sex.
Area of Science:
- Cardiovascular Physiology
- Exercise Physiology
- Biomedical Engineering
Context:
- The study investigates physiological responses to exercise using electrocardiography.
- It examines 160 healthy individuals to understand adaptation mechanisms.
- Age and sex are key factors influencing cardiovascular responses during physical exertion.
Purpose:
- To analyze the physiological mechanisms of adaptation to exercise.
- To determine the relationship between systolic arterial pressure (SAP) and cardiac rate (CR) during exercise.
- To assess the influence of age and sex on this relationship.
Summary:
- A strong linear correlation (R = 0.97) was found between SAP and CR during exercise.
- The slope of this relationship increases with age in both males and females.
- Significant differences in the SAP-CR slope were observed between sexes (P < 0.001).
- A predictive formula, SAP = 1.55.CR% + 70, was established relating SAP to relative cardiac rate (CR%).
Impact:
- Provides insights into age- and sex-specific cardiovascular adaptations to exercise.
- Establishes a quantifiable relationship for predicting systolic pressure response during exercise.
- Contributes to a better understanding of normal physiological responses, aiding in the interpretation of exercise electrocardiograms.