Characterization of the cardiovascular control during modified head-up tilt test in healthy adult humans

Andrea Marchi, Riccardo Colombo, Stefano Guzzetti, Vlasta Bari, Tito Bassani, Ferdinando Raimondi, Alberto Porta

Research output: Contribution to journalArticlepeer-review

Abstract

It is unknown whether modified head-up tilt (MTILT) with inclination of the back rest, thigh rest and shank rest of 60, 0 and 15° respectively challenges autonomic control as assessed from beat-to-beat variability of heart period (HP) and systolic arterial pressure (SAP). In 15 healthy adult humans we found that during MTILT the SAP power in the low frequency band increased and baroreflex sensitivity assessed in the high frequency band decreased. Conversely, the HP power in the high frequency band was unmodified. MTILT can be fruitfully exploited to stress sympathetic control directed to vessels in bedridden, uncooperative patients.

Original languageEnglish
Pages (from-to)166-169
Number of pages4
JournalAutonomic Neuroscience: Basic and Clinical
Volume179
Issue number1-2
DOIs
Publication statusPublished - 2013

Keywords

  • Arterial pressure variability
  • Autonomic nervous system
  • Baroreflex sensitivity
  • Heart rate variability
  • Intensive care unit
  • Spectral analysis

ASJC Scopus subject areas

  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Endocrine and Autonomic Systems

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