Measuring Coupling of Rhythmical Time Series Using Cross Sample Entropy and Cross Recurrence Quantification Analysis.
Measuring Coupling of Rhythmical Time Series Using Cross Sample Entropy and Cross Recurrence Quantification Analysis.
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DOI：
10.1155/2017/7960467
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发表时间：
2017
影响因子：
--
通讯作者：
Yentes JM
中科院分区：
文献类型：
--
作者：
McCamley J;Denton W;Lyden E;Yentes JM
本研究的目的是比较和对比使用交叉样本熵（xSE）和交叉循环量化分析（cRQA）措施来评估节奏模式的耦合。使用频率、幅度和两者的组合具有规则、混沌和随机波动的模拟信号来评估措施。生物学数据作为正常和异常运动-呼吸耦合的模型进行研究。七种频率比产生了九种信号类型。记录了15例COPD患者（异常耦合）和21例健康对照（正常耦合）在跑步机上以三种速度同时呼吸和行走。xSE和cRQA测量的百分比确定性，最大线，平均线和熵都量化了模拟和实验数据。在模拟数据中，xSE、百分比确定性和熵受到频率操纵的影响。几乎所有测量和/或操作的1:1频率比都不同于其他频率比。COPD患者更常使用2:3的比率，并且xSE，百分比确定性，最大线，平均值和cRQA熵能够在组之间进行区分。对步行速度影响的分析表明，所有的测量方法都能够区分不同的速度。
The aim of this investigation was to compare and contrast the use of cross sample entropy (xSE) and cross recurrence quantification analysis (cRQA) measures for the assessment of coupling of rhythmical patterns. Measures were assessed using simulated signals with regular, chaotic, and random fluctuations in frequency, amplitude, and a combination of both. Biological data were studied as models of normal and abnormal locomotor-respiratory coupling. Nine signal types were generated for seven frequency ratios. Fifteen patients with COPD (abnormal coupling) and twenty-one healthy controls (normal coupling) walked on a treadmill at three speeds while breathing and walking were recorded. xSE and the cRQA measures of percent determinism, maximum line, mean line, and entropy were quantified for both the simulated and experimental data. In the simulated data, xSE, percent determinism, and entropy were influenced by the frequency manipulation. The 1 : 1 frequency ratio was different than other frequency ratios for almost all measures and/or manipulations. The patients with COPD used a 2 : 3 ratio more often and xSE, percent determinism, maximum line, mean line, and cRQA entropy were able to discriminate between the groups. Analysis of the effects of walking speed indicated that all measures were able to discriminate between speeds.
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DOI：
10.1016/0034-5687(66)90016-8
发表时间：
1966-01-01
期刊：
RESPIRATION PHYSIOLOGY
影响因子：
--
作者：
HEY, EN;LLOYD, BB;BOLTON, DPG
通讯作者：
BOLTON, DPG
影响因子：
1.9
作者：
Kuznetsov, Nikita A.;Luberto, Christina M.;Riley, Michael A.
通讯作者：
Riley, Michael A.
影响因子：
5.5
作者：
BECHBACHE, RR;DUFFIN, J
通讯作者：
DUFFIN, J
影响因子：
2.9
作者：
KENNEL, MB;BROWN, R;ABARBANEL, HDI
通讯作者：
ABARBANEL, HDI
影响因子：
5.5
作者：
BERNASCONI, P;KOHL, J
通讯作者：
KOHL, J