Heart rate and vasomotor control during exercise

Frédéric Valláis, Giuseppe Baselli, Daniela Lucini, Massimo Pagani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spontaneous baroreflex function and vascular changes were assessed in young adults during dynamical mild exercise. Windkessel time constant was assessed by two different methods: two-element Windkessel model, and by an autoregressive (AR) model, while the baroreflex sensitivity (BRS, ms/mmHg) was assessed by the sequence method. Results showed a change in the baroreflex control of heart rate (HR) with the severity of exercise, as well as the resetting phenomenon. Methods used to estimate the Windkessel time constant were poorly correlated. Subject by subject correlation was found between the BRS and the time constant derived from the AR model within exercise and recovery period. These results may suggest that reflex mechanisms controlling HR may also participate in controlling peripheral circulation or, viceversa, BRS is influenced by vascular tone.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Pages578-581
Number of pages4
DOIs
Publication statusPublished - 2007
Event29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 - Lyon, France
Duration: Aug 23 2007Aug 26 2007

Other

Other29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
CountryFrance
CityLyon
Period8/23/078/26/07

ASJC Scopus subject areas

  • Biomedical Engineering

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    Valláis, F., Baselli, G., Lucini, D., & Pagani, M. (2007). Heart rate and vasomotor control during exercise. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (pp. 578-581). [4352356] https://doi.org/10.1109/IEMBS.2007.4352356