120070 20240705134138.0 doi 10.1109/RBME.2022.3220636 sideral 130935 ART-2022-130935 eng Sornmo, Leif Spectral Analysis of Heart Rate Variability in Time-Varying Conditions and in the Presence of Confounding Factors 2022 Access copy available to the general public Unrestricted The tools for spectrally analyzing heart rate variability (HRV) has in recent years grown considerably, with emphasis on the handling of time-varying conditions and confounding factors. Time–frequency analysis holds since long an important position in HRV analysis, however, this technique cannot alone handle a mean heart rate or a respiratory frequency which vary over time. Overlapping frequency bands represents another critical condition which needs to be dealt with to produce accurate spectral measurements. The present survey offers a comprehensive account of techniques designed to handle such conditions and factors by providing a brief description of the main principles of the different methods. Several methods derive from a mathematical/statistical model, suggesting that the model can be used to simulate data used for performance evaluation. The inclusion of a respiratory signal, whether measured or derived, is another feature of many recent methods, e.g., used to guide the decomposition of the HRV signal so that signals related as well as unrelated to respiration can be analyzed. It is concluded that the development of new approaches to handling time-varying scenarios are warranted, as is benchmarking of performance evaluated in technical as well as in physiological/clinical terms. info:eu-repo/grantAgreement/ES/DGA-FEDER/T39-17R-BSICoS info:eu-repo/grantAgreement/ES/DGA-FSE/Building Europe from Aragon info:eu-repo/grantAgreement/ES/MICINN-FEDER/PID2019-104881RB-I00 info:eu-repo/grantAgreement/ES/MICINN-FEDER/PID2019-105674RB-I00 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 17.6 2022 ENGINEERING, BIOMEDICAL 3 / 96 = 0.031 2022 Q1 T1 2.556 2022 Biomedical Engineering 2022 Q1 27.8 2022 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Bailon, Raquel Universidad de Zaragoza (orcid)0000-0003-1272-0550 Laguna, Pablo Universidad de Zaragoza (orcid)0000-0003-3434-9254 5008 800 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Teoría Señal y Comunicac. 17 (2022), 322-341 IEEE rev. biomed. eng. IEEE reviews in biomedical engineering 1937-3333 4261554 http://zaguan.unizar.es/record/120070/files/texto_completo.pdf Postprint 3766943 http://zaguan.unizar.es/record/120070/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:120070 articulos driver 2024-07-05-12:46:01 ARTICLE