Cardio-IT

Quality in CARDIOlogy
Medical Informational Technology
Working group

Dynamics of synchronization of autonomic regulation of heart rate and blood pressure in healthy subjects during two-hour immobilization test with horizontal position of body

Year: 
Authors: 
Kiselev A.R., Karavaev A.S., Gridnev V.I., Posnenkova O.M., Ponomarenko V.I., Prokhorov M.D., Khorev V.S., Astakhov O.V., Bezruchko B.P., Mironov S.A.
Article type: 
Full text in: 
Abstract: 
Objective — This study evaluates the changes in synchronization between 0.1 Hz-rhythms in R-R intervals (RRI) of electrocardiogram and photoplethysmogram (PPG) and the changes in spectral indexes of heart rate variability (HRV) as response to the two-hour immobilization test in healthy subjects. Methods — The study included 17 healthy subjects (6 men and 11 women) aged 29±5 years. The signals of RRI and PPG were simultaneously recorded during the two-hour immobilization test (horizontal position of body). Degree S of synchronization between 0.1-Hz rhythms in RRI and PPG and power of low-frequency (LF) range and high-frequency (HF) range of HRV were calculated during the two-hour immobilization test. Results — Two groups of subjects matched for individual dynamics of S and power of HRV ranges were identified on the basis of the degree S within the 100 minutes of test. Conclusion — The same type of adaptation in autonomic regulation of cardiovascular system was observed in all healthy subjects during the 100 minutes of immobilization, regardless of the individual variability of synchronization between 0.1-Hz rhythms in RRI and PPG.
Cite as: 
Kiselev AR, Karavaev AS, Gridnev VI, Posnenkova OM, Ponomarenko VI, Prokhorov MD, Khorev VS, Astakhov OV, Bezruchko BP, Mironov SA. Dynamics of synchronization of autonomic regulation of heart rate and blood pressure in healthy subjects during two-hour immobilization test with horizontal position of body. Bulletin of Medical Internet Conferences 2012; 2(8): 604-607.

Full text: HTML, PDF