Time-frequency analysis of heart rate variability during the cold pressor test using a time-varying autoregressive model
文献类型：期刊论文
| 作者 | Rong-Chao Peng; Wen-Rong Yan; Xiao-Lin Zhou; Ning-Ling Zhang; Wan-Hua Lin; and Yuan-Ting Zhang |
| 刊名 | PHYSIOLOGICAL MEASUREMENT
 |
| 出版日期 | 2015 |
| 英文摘要 | Heart rate variability is a useful clinical tool for autonomic function assessment and cardiovascular disease diagnosis. To investigate the dynamic changes of sympathetic and parasympathetic activities during the cold pressor test, we used a time-varying autoregressive model for the time-frequency analysis of heart rate variability in 101 healthy subjects. We found that there were two sympathetic peaks (or two parasympathetic valleys) when the abrupt changes of temperature (ACT) occurred at the beginning and the end of the cold stimulus and that the sympathetic and parasympathetic activities returned to normal in about the last 2 min of the cold stimulus. These findings suggested that the ACT rather than the low temperature was the major cause of the sympathetic excitation and parasympathetic withdrawal. We also found that the onsets of the sympathetic peaks were 4–26 s prior to the ACT and the returns to normal were 54–57 s after the ACT, which could be interpreted as the feedforward and adaptation of the autonomic regulation process in the human body, respectively. These results might be helpful for understanding the regulatory mechanisms of the autonomic system and its effects on the cardiovascular system. |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/0967-3334/36/3/441 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/7041]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | PHYSIOLOGICAL MEASUREMENT |
| 推荐引用方式 GB/T 7714 | Rong-Chao Peng,Wen-Rong Yan,Xiao-Lin Zhou,et al. Time-frequency analysis of heart rate variability during the cold pressor test using a time-varying autoregressive model[J]. PHYSIOLOGICAL MEASUREMENT,2015. |
| APA | Rong-Chao Peng,Wen-Rong Yan,Xiao-Lin Zhou,Ning-Ling Zhang,Wan-Hua Lin,&and Yuan-Ting Zhang.(2015).Time-frequency analysis of heart rate variability during the cold pressor test using a time-varying autoregressive model.PHYSIOLOGICAL MEASUREMENT. |
| MLA | Rong-Chao Peng,et al."Time-frequency analysis of heart rate variability during the cold pressor test using a time-varying autoregressive model".PHYSIOLOGICAL MEASUREMENT (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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