Journal article
Parasympathetic cardiac control in mild hypertension
Journal of Hypertension, Vol.8(4), pp.383-387
1990
Abstract
The amplitude of respiratory sinus arrhythmia (RSA) while breathing quietly was measured in 32 mildly hypertensive subjects and in 28 normotensive controls. In 35 subjects, the SA amplitude in response to rebreathing carbon dioxide was also measured. The RSA amplitude while breathing quietly was smaller in the hypertensive group, particularly in the subjects having the highest levels of diastolic blood pressure. The breathing rate was greater and the heart period (R-R interval) shorter in the hypertensive subjects. After adjusting for differences in the breathing rate, the RSA amplitude was similar in both groups, but the heart period remained shorter in the hypertensive subjects. These findings suggest that breathing style may contribute to a reduction in parasympathetic cardiac control in mild hypertension.
Details
- Title
- Parasympathetic cardiac control in mild hypertension
- Authors/Creators
- P.D. Drummond (Author/Creator) - Murdoch University
- Publication Details
- Journal of Hypertension, Vol.8(4), pp.383-387
- Publisher
- Lippincott Williams & Wilkins
- Identifiers
- 991005541910107891
- Copyright
- © Lippincott-Raven Publishers
- Murdoch Affiliation
- School of Psychology
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.218 Autonomic Regulation
- 1.218.642 Heart Rate Variability
- Web Of Science research areas
- Peripheral Vascular Disease
- ESI research areas
- Clinical Medicine