Key result
Paced breathing guided by biofeedback therapy significantly reduced mean systolic blood pressure (p=0.002) and anxiety levels (p=0.0009) in patients with essential hypertension.
Why the study?
To evaluate the influence of cardiac coherence through biofeedback therapy with paced breathing on blood pressure, stress, and anxiety levels in individuals with essential arterial hypertension.
Does device-guided paced breathing with biofeedback reduce blood pressure, stress, and anxiety in patients with essential hypertension?
Does device-guided paced breathing with biofeedback reduce blood pressure, stress, and anxiety in patients with essential hypertension?
Standardized Mean Difference: 0.57
Absolute Event Rate: 111% vs 120%
p-value: p=0.002
Device-guided paced breathing with biofeedback significantly reduces systolic blood pressure and anxiety levels, suggesting it may be a useful non-pharmacological adjunct in hypertension management.
The present study aimed to evaluate the influence of cardiac coherence through Biofeedback Therapy (BT) with paced breathing on blood pressure, stress and anxiety levels in individuals with essential arterial hypertension. The participants underwent 8 sessions of paced breathing guided by biofeedback visual therapy for 20 minutes, in which they were evaluated through clinical assessment, Hamilton Anxiety Rating Scale, Perceived Stress Scale and cardiovascular variables. Comparisons of means were performed using the paired and unpaired Student's t-test. Statistically significant correlations were considered when p ≤ 0.05 with a 95% confidence interval. The effect size (Cohen's d) and common language effect size were calculated to assess the effect of such therapy. Sixteen patients with mean age of 57.3 ± 14 years old participated in this study. Comparisons between mean initial and final systolic blood pressure levels (SBP) in women (p = 0.007; Cohen's d = 0.50), pre- and post-training heart rate (p = 0.02; Cohen's d = 0.60) and anxiety levels (p = 0.01; Cohen's d = 1.04) were significant. Comparisons between pre- and post-training SBP (p = 0.006; Cohen's d = 0.81) and pre- and post-training anxiety levels (p = 0.04; Cohen's d = 0.32) were significant among males. In conclusion, paced breathing training with biofeedback therapy can be promising to reduce anxiety levels in individuals with essential arterial hypertension.
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York et al. (2021) studied Essential arterial hypertension (n=16). Paced breathing guided by biofeedback therapy vs. Pre-intervention baseline was evaluated on Systolic blood pressure (SBP) (Cohen's d 0.57, p=0.002). Paced breathing guided by biofeedback therapy significantly reduced mean systolic blood pressure (p=0.002) and anxiety levels (p=0.0009) in patients with essential hypertension.
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