Development and application of a respiratory device on blood pressure in adults with high blood pressure.

Abstract

Purpose: The purpose of this study is to develop a prototype of a novel respiratory device that we validated and assessed clinically and examined the effect of prototype of respiratory device on blood pressure (BP).

Methods: Prototype of respiratory device (TU-Breath Training) was designed with pressure cuff and application software was created. The immediate effect of resisted breathing was determined in 20 adults with high BP (systolic BP ≥ 130 mmHg and diastolic BP ≥ 90 mmHg). A crossover study was designed. A total of 20 eligible participants were asked to sit quietly for 10 min. Heart rate (HR), BP, and oxygen saturation (SpO₂) were measured and recorded. After the resting period, all participants were randomized and counterbalanced for undergoing the set of inspiratory muscle training by TU-Breath Training and control group. A set of respiratory training were composed of 10 times per set for three sets, while the control group was asked to sit for 10 min.

Results: After inspiratory training, both the systolic and diastolic BP decreased significantly. Compared with control group, using TU-Breath Training decreased systolic BP (-7.00 ± 5.93 mmHg) and diastolic BP (-5.95 ± 8.88 mmHg), but did not show differences in HR and SpO₂.

Conclusion: The study indicated that in high-BP participants, the prototype of respiratory device (TU-Breath Training) elicits decreased BP.