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Heart rate variability and arterial oxygen saturation response during extreme normobaric hypoxia

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15510%2F15%3A33154554" target="_blank" >RIV/61989592:15510/15:33154554 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.sciencedirect.com/science/article/pii/S1566070215000375" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1566070215000375</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.autneu.2015.04.001" target="_blank" >10.1016/j.autneu.2015.04.001</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Heart rate variability and arterial oxygen saturation response during extreme normobaric hypoxia

  • Original language description

    The primary purpose of this study was to assess the response of autonomic cardiac activity and changes in the arterial oxygen saturation (SpO2) during normobaric hypoxia and subsequent recovery. Heart rate variability (HRV) and SpO2 were monitored in a supine position during hypoxia (FiO2=9.6%) for 10min, and normoxic recovery in 29 subjects. Spectral analysis of HRV quantified the autonomic cardiac activity by means of low frequency (LF) (0.05-0.15Hz) and high frequency (HF) (0.15-0.50Hz) power transformed by natural logarithm (Ln). Based on the SpO2 response to hypoxia, the subjects were divided into Resistant (RG, SpO2=80.8+-7.0%) or Sensitive (SG, SpO2=67.2+-2.9%) group. The SpO2 and vagal activity (LnHF) significantly decreased during hypoxia in both groups. A withdrawal in vagal activity was significantly greater in SG compared to RG. Moreover, only in SG, a relative increase in sympathetic modulation (Ln LF/HF) during hypoxia occurred. Correlations (r=-0.461, and r=0.595, both P

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    ED - Physiology

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2015

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Autonomic Neuroscience: Basic and Clinical

  • ISSN

    1566-0702

  • e-ISSN

  • Volume of the periodical

    190

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    40-45

  • UT code for WoS article

    000356551900006

  • EID of the result in the Scopus database