A Physiological/Model Study on the Effects of Deep Breathing on the Respiration Rate, Oxygen Saturation, and Cerebral Oxygen Delivery in Humans

摘要

There are limited reports on using a mathematical approach to relate the respiration rate with the cerebrovascular flow rate during and after periods of deep breathing (DB) in humans. Here, modeling was applied to estimate the cerebral oxygen delivery (CDO2) impacted by three episodes of DB of different durations on a few parameters, including the respiration rate (RF) and oxygen saturation (SpO2). Results indicated that the DB groups of tested subjects achieved a qualitatively lower RF and greater CDO2 during the follow-up session. This suggests that the constant practice of deep breathing leads to a reduction in the RF and an increment in the CDO2, which can potentially improve cognitive abilitiy.