Key result
Personalized home respiratory feedback stabilizes BP and glucose and relieves stress in third-trimester pregnant women.
Why the study?
Respiratory training process cannot be optimally personalized due to the immature quantification of Respiratory Sinus Arrhythmia.
Does personalized respiratory feedback training at home improve blood pressure, blood glucose, mental stress, and fetal development in pregnant women in their third trimester?
RCT
Does personalized respiratory feedback training at home improve blood pressure, blood glucose, mental stress, and fetal development in pregnant women in their third trimester?
A wearable personalized respiratory feedback training system may help stabilize blood pressure and glucose and relieve stress in third-trimester pregnant women.
May support home respiratory training in late pregnancy; leaves open confirmation in larger randomized trials.
Imbalance of autonomic nerve is the cause of lots of cardiovascular and psychological diseases. Many studies have shown that Heart Rate Variability Biofeedback through respiratory training is an effective way to regulate the status of human autonomic nerves. However, due to the immature quantification of Respiratory Sinus Arrhythmia, the respiratory training process cannot be optimal personalized. In this paper, we propose the Cardiopulmonary Resonance Indices based on the Cardiopulmonary Coupling Model to calculate the personalized optimal breathing training frequency. Then the respiratory feedback training system is constructed to provide real-time audio-visual guidance for each subject. The results in the clinical trial of pregnant women in their third trimester showed that, compared to control group, with the intervention of personalized respiratory feedback training at home, pregnant women could stabilize their blood pressure and blood glucose, relieve mental stress, as well as exert positive effects on fetal development. This provides a new possibility of the autonomic imbalance treatment.
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Cui et al. (2020) conducted an RCT in Pregnant women in their third trimester. Personalized respiratory feedback training vs. Control group was evaluated on Blood pressure, blood glucose, mental stress, and fetal development. Personalized respiratory feedback training at home stabilized blood pressure and blood glucose, and relieved mental stress in third-trimester pregnant women compared to a control group.
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