Understanding the physiology of mindfulness: aortic hemodynamics and heart rate variability

Stress. 2016;19(2):168-74. doi: 10.3109/10253890.2016.1146669. Epub 2016 Mar 3.

Abstract

Data were collected to examine autonomic and hemodynamic cardiovascular modulation underlying mindfulness from two independent samples. An initial sample (N = 185) underwent laboratory assessments of central aortic blood pressure and myocardial functioning to investigated the association between mindfulness and cardiac functioning. Controlling for religiosity, mindfulness demonstrated a strong negative relationship with myocardial oxygen consumption and left ventricular work but not heart rate or blood pressure. A second sample (N = 124) underwent a brief (15 min) mindfulness inducing intervention to examine the influence of mindfulness on cardiovascular autonomic modulation via blood pressure variability and heart rate variability. The intervention had a strong positive effect on cardiovascular modulation by decreasing cardiac sympathovagal tone, vasomotor tone, vascular resistance and ventricular workload. This research establishes a link between mindfulness and cardiovascular functioning via correlational and experimental methodologies in samples of mostly female undergraduates. Future directions for research are outlined.

Keywords: Blood pressure; blood pressure variability; cardiovascular; heart rate variability; hemodynamics; mindfulness.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adolescent
  • Aorta / physiology*
  • Autonomic Nervous System / physiology
  • Blood Pressure / physiology*
  • Cardiovascular Physiological Phenomena*
  • Female
  • Heart / physiology
  • Heart Rate / physiology*
  • Hemodynamics / physiology*
  • Humans
  • Male
  • Mindfulness*
  • Oxygen Consumption / physiology
  • Vascular Resistance / physiology
  • Young Adult