Effect of spinal cord injury on nonlinear complexity of skin blood flow oscillations

Yih Kuen Jan, Fuyuan Liao, Stephanie Burns

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

Abstract

This study investigated the effect of spinal cord injury (SCI) on nonlinear complexity of skin blood flow oscillations (BFO). Complexity of the characteristic frequencies embedded in BFO was described by the scaling coefficient derived by detrended fluctuation analysis (DFA) and the range of scaling coefficients derived from multifractal detrended fluctuation analysis (MDFA) in specific scale intervals. 23 subjects were recruited into this study, including 11 people with SCI and 12 healthy controls. Local heating-induced maximal sacral skin blood flow was measured by laser Doppler flowmetry. The results showed that metabolic BFO (0.0095-0.02 Hz) exhibited significantly lower complexity in people with SCI as compared with healthy controls (p<0.01) during maximal vasodilation. This study demonstrated that complexity analysis of BFO can provide information of blood flow dynamics beyond traditional spectral analysis.

Original languageEnglish (US)
Title of host publicationUniversal Access in Human-Computer Interaction
Subtitle of host publicationApplications and Services - 6th International Conference, UAHCI 2011, Held as Part of HCI International 2011, Proceedings
Pages345-355
Number of pages11
EditionPART 4
DOIs
StatePublished - 2011
Externally publishedYes
Event6th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2011, Held as Part of HCI International 2011 - Orlando, FL, United States
Duration: Jul 9 2011Jul 14 2011

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 4
Volume6768 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other6th International Conference on Universal Access in Human-Computer Interaction, UAHCI 2011, Held as Part of HCI International 2011
CountryUnited States
CityOrlando, FL
Period7/9/117/14/11

Keywords

  • blood flow oscillations
  • complexity
  • detrended fluctuation analysis
  • multifractal detrended fluctuation analysis
  • spinal cord injury

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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