Key result
Voluntary cardiorespiratory synchronization using a heartbeat-based breath controller significantly increased cardiorespiratory synchronization time compared to spontaneous breathing (84.43s vs 19.79s, p<0.001).
Why the study?
The physiologic mechanism of cardiorespiratory coupling is unclear and difficult to study because experimental data are often nonstationary with only quasiperiodic oscillations.
Does voluntary cardiorespiratory synchronization using a heartbeat-based breath controller alter cardiopulmonary phase synchronization and cardiac function compared to spontaneous breathing?
Comparison
Breathing controlled by heartbeat detection in 2/2 and 4/4 modes vs spontaneous breathing
Authors
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Facilitates CRC analysis in nonstationary data; leaves open clinical relevance pending validation.
Does voluntary cardiorespiratory synchronization using a heartbeat-based breath controller alter cardiopulmonary phase synchronization and cardiac function compared to spontaneous breathing?
Absolute Event Rate: 84.43% vs 19.79%
p-value: p=<0.001
Voluntary cardiorespiratory synchronization using a heartbeat-based breath controller enhances cardiopulmonary phase synchronization and modulates cardiac function parameters such as blood pressure and stroke volume.
Ren et al. (2019) studied Healthy (n=30). Voluntary cardiorespiratory synchronization (VCRS) vs. Spontaneous breathing was evaluated on Cardiorespiratory synchronization time (Syn) in 360 seconds (p=<0.001). Voluntary cardiorespiratory synchronization using a heartbeat-based breath controller significantly increased cardiorespiratory synchronization time compared to spontaneous breathing (84.43s vs 19.79s, p<0.001).
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