This study examined the impact of breathing awareness meditation (BAM) compared to health education (HE) and lifeskills training (LS) upon resting systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate (HR) within the context of potential moderating factors of family environment and expectancy of benefit. 186 African American adolescents (mean age: 15.1±0.7 yrs) were randomly assigned by school to three-month BAM, LS, or HE interventions. Laboratory resting blood pressure (BP), Family Relations Index (FRI) and expectancy of benefit evaluations were conducted at pre- and post-intervention. Higher expectancy of benefit from any of the three interventions resulted in greater reductions in SBP. A two-way interaction indicated that BAM group subjects who came from positive family environments exhibited greater decreases in SBP. A two-way interaction indicated that BAM and LS subjects who came from positive family environments exhibited greater DBP decreases. A two-way interaction indicated that BAM subjects who came from positive family environments exhibited a greater HR decrease (all p<.05). Expectancy of intervention benefits beneficially impacted success of behavioral interventions aimed at reducing SBP. Positive family environments in combination with either BAM or LS appear to have a beneficial impact upon hemodynamic function in AA adolescents.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
