Effect of Spinal Cord Injury on Nonlinear Complexity of Skin Blood Flow Oscillations

被引：0

作者：

Jan, Yih-Kuen ^{[1
]}

Liao, Fuyuan ^{[1
]}

Burns, Stephanie ^{[2
]}

机构：

[1] Univ Oklahoma, Hlth Sci Ctr, Dept Rehabil Sci, Oklahoma City, OK USA

[2] Oklahoma City Veterans Affairs Med Ctr, Dept Neurol & Rehabil, Oklahoma City, OK USA

来源：

UNIVERSAL ACCESS IN HUMAN-COMPUTER INTERACTION: APPLICATIONS AND SERVICES, PT 4 | 2011年 / 6768卷

基金：

美国国家卫生研究院;

关键词：

blood flow oscillations; complexity; detrended fluctuation analysis; multifractal detrended fluctuation analysis; spinal cord injury; DETRENDED FLUCTUATION ANALYSIS; PERIPHERAL CARDIOVASCULAR-SYSTEM; HEART-RATE-VARIABILITY; WAVELET ANALYSIS; TIME-SERIES; DYNAMICS; DISEASE; MULTIFRACTALITY; MECHANISMS; DIAGNOSIS;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

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.

引用

页码：345 / 355

页数：11

共 34 条

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