Key result
Visual continuous systolic feedback doubles systolic pressure reduction to ~4 mmHg versus auditory feedback.
Why the study?
Blood pressure presentation mode and personality are likely to influence biofeedback outcome, but their effects on blood pressure self-manipulation capability are unclear.
Does visual continuous systolic feedback improve systolic pressure reduction compared to auditory feedback in normotensive subjects?
Comparison
Visual continuous systolic feedback (with or without noise or speech) vs auditory continuous systolic feedback
Design
Randomized assignment to feedback modalities
Authors
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Visual feedback may be preferred for BP biofeedback in normotensives; extends sensory-modality comparisons in self-regulation trials.
RCT (n=36)
randomly assigned
Does visual continuous systolic feedback improve systolic pressure reduction compared to auditory feedback in normotensive subjects?
Absolute Event Rate: 4% vs 2%
p-value: p=0.04
Visual feedback is more effective than auditory feedback for blood pressure self-manipulation, and psychological characteristics significantly influence this capability.
S et al. (1998) conducted an RCT in normotensive (n=36). Visual continuous systolic feedback vs. Auditory continuous systolic feedback was evaluated on Systolic pressure reduction (p=0.04). Visual continuous systolic feedback achieved a greater systolic pressure reduction (4 ± 4.3 mmHg, p=0.04) compared with auditory feedback (2 ± 4.7 mmHg).
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