Title :
Analysis of sympathetic nerve activity by power spectrum of arterial pressure fluctuations: effects of salt-induced hypertension and calcium supplementation in rats
Author :
Ju, Kihwan ; Kuwaki, Tomoyuki ; Ono, Ayumu ; Tujita, T. ; Kumada, Mamoru
Author_Institution :
Dept. of Physiol., Tokyo Univ., Japan
Abstract :
In salt-loaded or calcium supplied young spontaneously hypertensive rats (SHR), the power spectrum of arterial blood pressure (ABP) was determined in the anesthetized state by forward and backward autoregressive (F-B AR) algorithms. The authors found that salt-loading led to sympathetic overactivity, which was prevented by calcium supplementation, and concluded that F-B AR power spectral analysis of ABP fluctuations in SHR was a useful tool to monitor effects of salt-induced hypertension and calcium supplementation
Keywords :
bioelectric potentials; biological techniques; blood pressure measurement; neurophysiology; spectral analysis; Ca; NaCl; anesthetized state; arterial pressure fluctuations power spectrum; backward autoregressive algorithms; calcium supplementation; forward autoregressive algorithms; salt-induced hypertension; salt-loading; sympathetic nerve activity analysis; sympathetic overactivity; young spontaneously hypertensive rats; Arterial blood pressure; Blood pressure; Calcium; Filters; Fluctuations; Hafnium; Hypertension; Monitoring; Rats; Resonant frequency;
Conference_Titel :
Biomedical Engineering Conference, 1996., Proceedings of the 1996 Fifteenth Southern
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-3131-1
DOI :
10.1109/SBEC.1996.493264
