Browsing by Author "Peng, Chung-Kang"
Now showing items 1-14 of 14
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Clustering Heart Rate Dynamics Is Associated with β-Adrenergic Receptor Polymorphisms: Analysis by Information-Based Similarity Index
Yang, Albert C.; Tsai, Shih-Jen; Hong, Chen-Jee; Wang, Cynthia; Chen, Tai-Jui; Liou, Ying-Jay; Gaetano, Carlo; Peng, Chung-Kang (Public Library of Science, 2011)Background: Genetic polymorphisms in the gene encoding the β-adrenergic receptors (β -AR) have a pivotal role in the functions of the autonomic nervous system. Using heart rate variability (HRV) as an indicator of autonomic ... -
Complexity of cardiac signals for predicting changes in alpha-waves after stress in patients undergoing cardiac catheterization
Chiu, Hung-Chih; Lin, Yen-Hung; Lo, Men-Tzung; Tang, Sung-Chun; Wang, Tzung-Dau; Lu, Hung-Chun; Ho, Yi-Lwun; Ma, Hsi-Pin; Peng, Chung-Kang (Nature Publishing Group, 2015)The hierarchical interaction between electrical signals of the brain and heart is not fully understood. We hypothesized that the complexity of cardiac electrical activity can be used to predict changes in encephalic ... -
Complexity-based measures inform tai chi’s impact on standing postural control in older adults with peripheral neuropathy
Manor, Bradley David; Lipsitz, Lewis Arnold; Wayne, Peter Michael; Peng, Chung-Kang; Li, Li (BioMed Central, 2013)Background: Tai Chi training enhances physical function and may reduce falls in older adults with and without balance disorders, yet its effect on postural control as quantified by the magnitude or speed of center-of-pressure ... -
Do Seasons Have an Influence on the Incidence of Depression? The Use of an Internet Search Engine Query Data as a Proxy of Human Affect
Yang, Albert C.; Huang, Norden E.; Peng, Chung-Kang; Tsai, Shih-Jen (Public Library of Science, 2010)Background: Seasonal depression has generated considerable clinical interest in recent years. Despite a common belief that people in higher latitudes are more vulnerable to low mood during the winter, it has never been ... -
Gait Unsteadiness and Fall Risk in Two Affective Disorders: A Preliminary Study
Hausdorff, Jeffrey M.; Peng, Chung-Kang; Goldberger, Ary Louis; Stoll, Andrew L (BioMed Central, 2004)Background: In older adults, depression has been associated with increased fall risk, but the reasons for this link are not fully clear. Given parallels between major depression and Parkinson's disease, we hypothesized ... -
A Higher Proportion of Metabolic Syndrome in Chinese Subjects with Sleep-Disordered Breathing: A Case-Control Study Based on Electrocardiogram-Derived Sleep Analysis
Tseng, Ping-Huei; Lee, Pei-Lin; Hsu, Wei-Chung; Ma, Yan; Lee, Yi-Chia; Chiu, Han-Mo; Ho, Yi-Lwun; Chen, Ming-Fong; Wu, Ming-Shiang; Peng, Chung-Kang (Public Library of Science, 2017)Objective: The prevalence of metabolic syndrome (MS) has increased rapidly in Taiwan and worldwide. We aim to determine the association between sleep-disordered breathing (SDB) and MS in a Chinese general population. ... -
Multi-Scale Glycemic Variability: A Link to Gray Matter Atrophy and Cognitive Decline in Type 2 Diabetes
Cui, Xingran; Abduljalil, Amir; Manor, Brad D.; Peng, Chung-Kang; Novak, Vera (Public Library of Science, 2014)Objective: Type 2 diabetes mellitus (DM) accelerates brain aging and cognitive decline. Complex interactions between hyperglycemia, glycemic variability and brain aging remain unresolved. This study investigated the ... -
Multi-scale symbolic entropy analysis provides prognostic prediction in patients receiving extracorporeal life support
Lin, Yen-Hung; Huang, Hui-Chun; Chang, Yi-Chung; Lin, Chen; Lo, Men-Tzung; Liu, Li-Yu Daisy; Tsai, Pi-Ru; Chen, Yih-Sharng; Ko, Wen-Je; Ho, Yi-Lwun; Chen, Ming-Fong; Peng, Chung-Kang; Buchman, Timothy G (BioMed Central, 2014)Introduction: Extracorporeal life support (ECLS) can temporarily support cardiopulmonary function, and is occasionally used in resuscitation. Multi-scale entropy (MSE) derived from heart rate variability (HRV) is a powerful ... -
Multimodal Pressure-Flow Method to Assess Dynamics of Cerebral Autoregulation in Stroke and Hypertension
Novak, Vera; Yang, Albert CC; Lepicovsky, Lukas; Goldberger, Ary Louis; Lipsitz, Lewis Arnold; Peng, Chung-Kang (BioMed Central, 2004)Background: This study evaluated the effects of stroke on regulation of cerebral blood flow in response to fluctuations in systemic blood pressure (BP). The autoregulatory dynamics are difficult to assess because of the ... -
A Nonlinear Dynamic Approach Reveals a Long-Term Stroke Effect on Cerebral Blood Flow Regulation at Multiple Time Scales
Hu, Kun; Lo, Men-Tzung; Peng, Chung-Kang; Liu, Yanhui; Novak, Vera (Public Library of Science, 2012)Cerebral autoregulation (CA) is an important vascular control mechanism responsible for relatively stable cerebral blood flow despite changes of systemic blood pressure (BP). Impaired CA may leave brain tissue unprotected ... -
Obstructive Sleep Apnea Alters Sleep Stage Transition Dynamics
Bianchi, Matt Travis; Cash, Sydney S.; Mietus, Joseph; Peng, Chung-Kang; Thomas, Robert Joseph (Public Library of Science (PLoS), 2010)Introduction: Enhanced characterization of sleep architecture, compared with routine polysomnographic metrics such as stage percentages and sleep efficiency, may improve the predictive phenotyping of fragmented sleep. One ... -
Outlier-resilient complexity analysis of heartbeat dynamics
Lo, Men-Tzung; Chang, Yi-Chung; Lin, Chen; Young, Hsu-Wen Vincent; Lin, Yen-Hung; Ho, Yi-Lwun; Peng, Chung-Kang; Hu, Kun (Nature Publishing Group, 2015)Complexity in physiological outputs is believed to be a hallmark of healthy physiological control. How to accurately quantify the degree of complexity in physiological signals with outliers remains a major barrier for ... -
Reversible heart rhythm complexity impairment in patients with primary aldosteronism
Lin, Yen-Hung; Wu, Vin-Cent; Lo, Men-Tzung; Wu, Xue-Ming; Hung, Chi-Sheng; Wu, Kwan-Dun; Lin, Chen; Ho, Yi-Lwun; Stowasser, Michael; Peng, Chung-Kang (Nature Publishing Group, 2015)Excess aldosterone secretion in patients with primary aldosteronism (PA) impairs their cardiovascular system. Heart rhythm complexity analysis, derived from heart rate variability (HRV), is a powerful tool to quantify the ... -
Tai Chi Training may Reduce Dual Task Gait Variability, a Potential Mediator of Fall Risk, in Healthy Older Adults: Cross-Sectional and Randomized Trial Studies
Wayne, Peter M.; Hausdorff, Jeffrey M.; Lough, Matthew; Gow, Brian J.; Lipsitz, Lewis; Novak, Vera; Macklin, Eric A.; Peng, Chung-Kang; Manor, Brad (Frontiers Media S.A., 2015)Background: Tai Chi (TC) exercise improves balance and reduces falls in older, health-impaired adults. TC’s impact on dual task (DT) gait parameters predictive of falls, especially in healthy active older adults, however, ...