![]() ![]() Slow breathing practices have been practiced for thousands of years amongst Eastern cultures due to their perceived health benefits 1. Further studies are warranted to assess long-term effects of slow breathing. Drop in cardiac component of BP amplitude evoked by slow-breathing may be perceived as a cardiovascular protective mechanism to avoid target organ damage. The overall increase in BP and SAS oscillations during slow breathing is driven by the respiratory component. Slow breathing diminishes amplitude of cardiac BP and SAS oscillations. ![]() Wavelet analysis with the Morlet mother wavelet was applied for delineation of BP and SAS signals cardiac and respiratory components. Procedure 2 consisted of breathing spontaneously and at controlled rates of 6, 12 and 18 breaths/minute for 5 minutes. Procedure 1 consisted of breathing spontaneously and at controlled rates of 6 breaths/minute and 6 breaths/minute with inspiratory resistance for 10 minutes. Oxyhaemoglobin saturation (SaO 2) and end-tidal CO 2 (EtCO 2) were measured using a medical monitoring system. ![]() SAS signals were recorded using an SAS monitor. BP and heart rate (HR) were measured using continuous finger-pulse photoplethysmography. Experiments were performed on a group of 20 healthy volunteers (8 males and 12 females age 25.3 ± 7.9 years BMI = 22.1 ± 3.2 kg/m 2). The aim of the study was to assess cardiac and respiratory blood pressure (BP) and subarachnoid space (SAS) width oscillations during the resting state for slow and fast breathing and breathing against inspiratory resistance. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |