Revisiting the potential of time-domain indexes in short-term HRV analysis
| Autor: | Alberto Macerata, F. Cantini, Gianfranco Raimondi, Rita Balocchi, Maurizio Varanini, Jacopo M. Legramante |
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| Rok vydání: | 2006 |
| Předmět: |
Adult
Male cardiac sympathetic index heart rate variability lf/hf poincaré plot Time Factors Models Cardiovascular Biomedical Engineering Context (language use) Standard deviation Term (time) Root mean square Electrocardiography Biological Clocks Heart Rate Oscillometry Statistics Humans Heart rate variability Poincaré plot Computer Simulation Female Statistical dispersion Diagnosis Computer-Assisted Time domain Algorithms Retrospective Studies |
| Zdroj: | Biomedizinische Technik/Biomedical Engineering. 51:190-193 |
| ISSN: | 1862-278X 0013-5585 |
| DOI: | 10.1515/bmt.2006.034 |
| Popis: | In the context of HRV analysis, we evaluated the information content of two measures that can easily be derived from the classical RR time-domain indexes. The two measures are: 1) the ratio sd/rmssd, where sd is the RR standard deviation and rmssd is the root mean square of squared differences of consecutive RR beats; and 2) the ratio sd2/sd1, where sd2 and sd1 are extracted from the Poincaré plot and represent the transversal and longitudinal dispersion of the cloud of points (RR(i),RR(i)(+1)). We compared the performance of the two measures with that of the classical LF/HF ratio in a group of healthy subjects who underwent a 70 degrees upright tilt test. The goodness of the results obtained by the two measures, the simplicity of their calculation and their applicability free from a priori assumptions on the characteristics of the data are proposed to the attention of the community involved in the HRV analysis as a possible alternative to the LF/HF ratio. |
| Databáze: | OpenAIRE |
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