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Mindfulness effects on lifestyle behavior and blood pressure: A randomized controlled trial.

  • Author(s): An, Eunjoo;
  • Irwin, Michael R;
  • Doering, Lynn V;
  • Brecht, Mary-Lynn;
  • Watson, Karol E;
  • Corwin, Elizabeth;
  • Macey, Paul M
  • et al.

Published Web Location

https://doi.org/10.1002/hsr2.296
Abstract

Background and aims

HTN affects nearly 50% of U.S. adults and is the leading modifiable cardiovascular risk factor. A healthy diet and exercise can improve BP control, but adherence to these interventions is low. We tested whether a multimodal mind-body program, Mindful Awareness Practices (MAP) could improve BP and lifestyle behaviors associated with HTN when compared to a Health Promotion Program (HPP).

Methods

Adults with BP >120/80 were randomized to MAP or HPP. Outcome measurements of BP, self-reported diet, and exercise were analyzed with intent-to-treat group comparisons using repeated measures linear mixed models.

Results

There was an MAP-HPP between-group difference in interactions of time-by-systolic BP (P = 0.005) and time-by-diastolic BP (P = .003). The mean drops in SBP from baseline to week 13 for the MAP group was 19 mm Hg (138 ± 15 mm Hg-119 ± 6 mm Hg) compared to 7 mm Hg (134 ± 18 mm Hg-127 ± 22 mm Hg) in the HPP group. Similarly, a greater reduction in DBP was observed in the MAP group compared to the HPP group, 12 mm Hg (89 mm Hg ± 11-77 ± 7 mm Hg) and 1 mm Hg (81 ± 16 mm Hg-80 ± 18 mm Hg), respectively. Mediational analysis of the MAP group showed the total effect of mindfulness practice minutes on SBP with indirect effect (ab) of -.057 was significant, resulting in a 40% lower SBP for total effect (c) compared to direct (c') effect alone. The mediational model suggests MAP has a modest positive influence on participants initiating lifestyle behavior change, which partially explains the greater reduction in BP by the MAP group.

Conclusion

Our findings suggest a multimodal mind-body program involving mindfulness practice may improve BP control in adults with HTN.

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