Effect of Feedback Signal on Blood Pressure Self-regulation Capability in Individuals With @entity1556 or Stage I XXXX : A Randomized Controlled Study.

@entity1 @entity1556 @entity101 @entity13519
OBJECTIVES: We aimed to determine the efficacy of an 8-week direct blood pressure (BP) biofeedback training program for @entity1556 or stage I @entity101 @entity1 with a particular focus on the impact of the authenticity of feedback signals on the efficacy of BP regulation. DESIGNS: This study has a randomized, double-blind, parallel-group design. @entity1 AND METHODS: Fifty-nine individuals with ages from 18 to 64 years and who met the criteria for the diagnosis of prehypertenion or stage 1 @entity101 participated in this study. The @entity1 were referrals from physicians or community-dwelling volunteers. No @entity1 had taken antihypertensive medication within the previous 2 months prior to enrollment. The @entity1 were randomly assigned to the biofeedback group (n = 31) trained with real-time BP feedback signals or the control group (n = 28) trained with pseudofeedback signals. The primary outcome measures were @entity13519 (DBP). Systolic BP and DBP were assessed at baseline, 1 week after training (week 9), and 8 weeks after training (week 16) in both groups. Only 54 @entity1 had week 16 data. RESULTS: The changes in @entity13519 and DBP from baseline to week 9, from baseline to week 16, and from week 9 to week 16 were not significantly different between the groups (All P > 0.05). Both groups were able to significantly decrease BP after completing the training. A percentage of 45.2% of the @entity1 in the biofeedback group and 63.0% of the @entity1 in the control group lowered their @entity13519 by 5 mm Hg or more at week 9. The @entity13519 -lowering effects were also maintained for at least 8 weeks after the completion of training. CONCLUSIONS: The equivalent magnitude of BP reduction between the 2 study groups suggests that repeated practice in BP self-regulation was more likely responsible for the efficacy of direct BP biofeedback training than was the type of feedback signals.
