Posted 12.21.2018 | by AMRA
High blood pressure is a major cardiovascular risk factor impacting 35% of U.S. adults. Stress, anxiety, and depression can contribute to its onset and intensification. The condition is usually treated with antihypertensive medications, but a significant proportion of patients fail to achieve adequate control with medication alone.
Researchers are interested in whether stress-reduction interventions together with conventional medical care can improve outcomes compared to medication alone. In a randomized controlled trial, Marquez et al. [Journal of Human Hypertension] compared relative effectiveness of mindfulness meditation and health education programs in reducing blood pressure as well as levels of stress, anxiety, and depression.
The researchers randomly assigned 42 meditation-naïve participants (average age = 57 years; 43% male; 69% on antihypertensive medication) with high-normal blood pressure or stage 1 hypertension to a Mindfulness Meditation or Health Education intervention. Both interventions were offered in two-hour group sessions that met weekly over the course of 8 weeks.
Mindfulness Meditation content was similar to that offered in Mindfulness-Based Stress Reduction (MBSR). The Health Education intervention offered didactic information on hypertension risk factors, along with methods of prevention through medication, diet, and exercise. Participants were assessed at baseline, 4, 8, and 20 weeks on measures of mindfulness (evaluated using the Five Facet Mindfulness Questionnaire), mood, perceived stress, anxiety, depression, and clinically assessed blood pressure (BP).
Additionally, each participant’s ambulatory BP was assessed over a 24-hour period at baseline and at week 8 using a body-worn automated device that measured BP at 15-30 minute intervals throughout the day and night. Ambulatory BP is a sound measure because it eliminates the error associated with the “white coat” effect—the spurious elevation in BP that occurs when […]