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[Spectrum analysis of heart rate. A method of studying the role of the autonomic nervous system in the regulation of blood circulation].
Kardiol Pol. 1991; 35(9):165-9.KP

Abstract

Spectral analysis of heart rate variability has recently been shown to be a reliable noninvasive test for quantitative assessment of cardiovascular automatic regulatory responses. In 12 ambulant normotensive healthy young males (mean age 23 +/- 1 years) after a period of 10 min. for stabilisation, a continuous ecg recording (lead CM-5) for 8 min. was obtained in the supine and standing position, with a controlled respiration rate 15/min. Power spectrum of 512 point time series (R-R intervals) in both positions was calculated using a fast Fourier transform-based window periodogram method. Based upon results from the literature the power spectrum analysis was performed on two components: low frequency LF (0.05-0.15 Hz) and high frequency HF (0.15-0.50 Hz). Mean R-R interval decreased on standing position from 0.79 +/- 0.10 s to 0.59 +/- 0.11 s (p less than 0.001). The ratio HF/LF in supine was 0.63 +/- 0.70 and on standing position 2.54 +/- 0.73 (p less than 0.001). The relative LF component of the total HR power spectrum increased from 22.8% +/- 12.1% to 42.9 +/- 14.4% (p less than 0.001) after changing the position from supine to standing, and the relative HF component decreased from 56.3 +/- 22.4% to 25.5 +/- 16.2 (p less than 0.001). The total power was significantly lower when standing in comparison to supine position (681 +/- 519 s2, 1188 +/- 963 s2 respectively, p less than 0.05). Our results suggest that heart rate fluctuations in supine position in normal men are mainly vagally determined (HF power spectrum component).(ABSTRACT TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Bieniaszewski L
II Kliniki Chorób Wewnetrznych Akademii Medycznej, Gdańsku.
Rynkiewicz A
No affiliation info available
Furmański J
No affiliation info available
Narkiewicz K
No affiliation info available
Krupa-Wojciechowska B
No affiliation info available

MeSH

AdultAutonomic Nervous SystemBlood CirculationCardiovascular Physiological PhenomenaCardiovascular SystemElectrocardiographyHeart RateHumansMaleModels, CardiovascularPosture

Pub Type(s)

Comparative Study
English Abstract
Journal Article

Language

pol

PubMed ID

1753561

Citation

Bieniaszewski, L, et al. "[Spectrum Analysis of Heart Rate. a Method of Studying the Role of the Autonomic Nervous System in the Regulation of Blood Circulation]." Kardiologia Polska, vol. 35, no. 9, 1991, pp. 165-9.
Bieniaszewski L, Rynkiewicz A, Furmański J, et al. [Spectrum analysis of heart rate. A method of studying the role of the autonomic nervous system in the regulation of blood circulation]. Kardiol Pol. 1991;35(9):165-9.
Bieniaszewski, L., Rynkiewicz, A., Furmański, J., Narkiewicz, K., & Krupa-Wojciechowska, B. (1991). [Spectrum analysis of heart rate. A method of studying the role of the autonomic nervous system in the regulation of blood circulation]. Kardiologia Polska, 35(9), 165-9.
Bieniaszewski L, et al. [Spectrum Analysis of Heart Rate. a Method of Studying the Role of the Autonomic Nervous System in the Regulation of Blood Circulation]. Kardiol Pol. 1991;35(9):165-9. PubMed PMID: 1753561.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Spectrum analysis of heart rate. A method of studying the role of the autonomic nervous system in the regulation of blood circulation]. AU - Bieniaszewski,L, AU - Rynkiewicz,A, AU - Furmański,J, AU - Narkiewicz,K, AU - Krupa-Wojciechowska,B, PY - 1991/1/1/pubmed PY - 1991/1/1/medline PY - 1991/1/1/entrez SP - 165 EP - 9 JF - Kardiologia polska JO - Kardiol Pol VL - 35 IS - 9 N2 - Spectral analysis of heart rate variability has recently been shown to be a reliable noninvasive test for quantitative assessment of cardiovascular automatic regulatory responses. In 12 ambulant normotensive healthy young males (mean age 23 +/- 1 years) after a period of 10 min. for stabilisation, a continuous ecg recording (lead CM-5) for 8 min. was obtained in the supine and standing position, with a controlled respiration rate 15/min. Power spectrum of 512 point time series (R-R intervals) in both positions was calculated using a fast Fourier transform-based window periodogram method. Based upon results from the literature the power spectrum analysis was performed on two components: low frequency LF (0.05-0.15 Hz) and high frequency HF (0.15-0.50 Hz). Mean R-R interval decreased on standing position from 0.79 +/- 0.10 s to 0.59 +/- 0.11 s (p less than 0.001). The ratio HF/LF in supine was 0.63 +/- 0.70 and on standing position 2.54 +/- 0.73 (p less than 0.001). The relative LF component of the total HR power spectrum increased from 22.8% +/- 12.1% to 42.9 +/- 14.4% (p less than 0.001) after changing the position from supine to standing, and the relative HF component decreased from 56.3 +/- 22.4% to 25.5 +/- 16.2 (p less than 0.001). The total power was significantly lower when standing in comparison to supine position (681 +/- 519 s2, 1188 +/- 963 s2 respectively, p less than 0.05). Our results suggest that heart rate fluctuations in supine position in normal men are mainly vagally determined (HF power spectrum component).(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0022-9032 UR - https://www.unboundmedicine.com/medline/citation/1753561/[Spectrum_analysis_of_heart_rate__A_method_of_studying_the_role_of_the_autonomic_nervous_system_in_the_regulation_of_blood_circulation]_ DB - PRIME DP - Unbound Medicine ER -