Time-frequency analysis of heart rate variability during head-up tilt
Wang, Shou-Yan, Zhang, Li-Fan, Cheng, Jiu-Hua and Wang, Xing-Bang (2001) Time-frequency analysis of heart rate variability during head-up tilt. Journal of the Fourth Military Medical University, 22, (4), 301-305.
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AIM To study the time-frequency analysis of heart rate variability.
METHODS Four time-frequency methods were applied to heart rate variability analysis during head-up tilt, which were short-time Fourier transform, Choi-Williams distribution, cone-kernel representation and continuous wavelet transform.
RESULTS Low frequency component increased while high frequency component decreased. Each component was under dynamic modulation during supine and head-up tilt.
CONCLUSION Time-frequency methods can be applied to studying the dynamic change of heart rate variability, which could be potential in clinical monitoring.
|Keywords:||posture, heart rate, time-frequency analysis|
|Subjects:||R Medicine > R Medicine (General)
T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QP Physiology
|Divisions:||University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Human Sciences
|Date Deposited:||12 Jul 2007|
|Last Modified:||02 Mar 2012 12:08|
|Contributors:||Wang, Shou-Yan (Author)
Zhang, Li-Fan (Author)
Cheng, Jiu-Hua (Author)
Wang, Xing-Bang (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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