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Effects of age, BMI, anxiety and stress on the parameters of a stochastic model for heart rate variability including respiratory information
Lund University.
Högskolan Kristianstad, Fakulteten för lärarutbildning, Avdelningen för psykologi.ORCID-id: 0000-0002-2921-3945
Lund University.
2018 (Engelska)Ingår i: Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies, SCITEPRESS , 2018, Vol. 4, s. 17-25Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Recent studies have focused on investigating different factors that may affect heart rate variability (HRV),pointing especially to the effects of age, gender and stress level. Other findings raise the importance of consid- ering the respiratory frequency in the analysis of HRV signals. In this study, we evaluate the effect of several covariates on the parameters of a stochastic model for HRV. The data was recorded from 47 test participants, whose breathing was controlled by following a metronome with increasing frequency. This setup allows for a controlled acquisition of respiratory related HRV data covering the frequency range in which adults breathe in different everyday situations. A stochastic model, known as Locally Stationary Chirp Process, accounts for the respiratory signal information and models the HRV data. The model parameters are estimated with a novel inference method based on the separability features possessed by the process covariance function. Least square regression analysis using several available covariates is used to investigate the correlation with the stochastic model parameters. The results show statistically significant correlation of the model parameterswith age, BMI, State and Trait Anxiety as well as stress level.

Ort, förlag, år, upplaga, sidor
SCITEPRESS , 2018. Vol. 4, s. 17-25
Nyckelord [en]
HRV, Chirp Respiratory Frequency, Locally Stationary Chirp Processes, Time-varying Signals, Time-series
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:hkr:diva-17891DOI: 10.5220/0006512900170025ISBN: 978-989-758-279-0 (tryckt)OAI: oai:DiVA.org:hkr-17891DiVA, id: diva2:1185778
Konferens
BIOSTEC 2018
Tillgänglig från: 2018-02-26 Skapad: 2018-02-26 Senast uppdaterad: 2018-02-26Bibliografiskt granskad

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Totalt: 115 träffar
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