SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation
Thousands of papers involved in heart rate variability (HRV). However, little was known about one important measure of HRV, the root mean square of successive heartbeat interval differences (RMSSDs). Another fundamental measure SDNN indicates standard deviation of normal to normal R-R intervals, whe...
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Wiley
2012-01-01
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Series: | Modelling and Simulation in Engineering |
Online Access: | http://dx.doi.org/10.1155/2012/931943 |
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author | Hui-Min Wang Sheng-Chieh Huang |
author_facet | Hui-Min Wang Sheng-Chieh Huang |
author_sort | Hui-Min Wang |
collection | DOAJ |
description | Thousands of papers involved in heart rate variability (HRV). However, little was known about one important measure of HRV, the root mean square of successive heartbeat interval differences (RMSSDs). Another fundamental measure SDNN indicates standard deviation of normal to normal R-R intervals, where R is the peak of a QRS complex (heartbeat). Compared with SDNN, RMSSD is a short-term variation of heart rate. Through a time-frequency transformation, the ratio of low- and high-frequency power LF/HF represents the sympatho-vagal balance of the autonomic nervous system (ANS). Some research claimed that SDNN/RMSSD was a good surrogate for LF/HF. However, only two special cases supported this hypothesis in the literature survey. The first happened in resting supine state and the other was a group of prefrontal cortex patients. Both of their Pearson correlation coefficients reached 0.90, a reasonable criterion. In our study, a 6-week experiment was performed with 32 healthy young Asian males. The Pearson correlation coefficients had a normal distribution with average values smaller than 0.6 for 3 and 5-minute epochs, respectively. Our findings suggest this surrogate aspect could remain as a hypothesis. |
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institution | Kabale University |
issn | 1687-5591 1687-5605 |
language | English |
publishDate | 2012-01-01 |
publisher | Wiley |
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series | Modelling and Simulation in Engineering |
spelling | doaj-art-bcd15bc009664ded86a5f46788404f202025-02-03T06:08:22ZengWileyModelling and Simulation in Engineering1687-55911687-56052012-01-01201210.1155/2012/931943931943SDNN/RMSSD as a Surrogate for LF/HF: A Revised InvestigationHui-Min Wang0Sheng-Chieh Huang1Department of Electrical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electrical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanThousands of papers involved in heart rate variability (HRV). However, little was known about one important measure of HRV, the root mean square of successive heartbeat interval differences (RMSSDs). Another fundamental measure SDNN indicates standard deviation of normal to normal R-R intervals, where R is the peak of a QRS complex (heartbeat). Compared with SDNN, RMSSD is a short-term variation of heart rate. Through a time-frequency transformation, the ratio of low- and high-frequency power LF/HF represents the sympatho-vagal balance of the autonomic nervous system (ANS). Some research claimed that SDNN/RMSSD was a good surrogate for LF/HF. However, only two special cases supported this hypothesis in the literature survey. The first happened in resting supine state and the other was a group of prefrontal cortex patients. Both of their Pearson correlation coefficients reached 0.90, a reasonable criterion. In our study, a 6-week experiment was performed with 32 healthy young Asian males. The Pearson correlation coefficients had a normal distribution with average values smaller than 0.6 for 3 and 5-minute epochs, respectively. Our findings suggest this surrogate aspect could remain as a hypothesis.http://dx.doi.org/10.1155/2012/931943 |
spellingShingle | Hui-Min Wang Sheng-Chieh Huang SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation Modelling and Simulation in Engineering |
title | SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation |
title_full | SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation |
title_fullStr | SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation |
title_full_unstemmed | SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation |
title_short | SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation |
title_sort | sdnn rmssd as a surrogate for lf hf a revised investigation |
url | http://dx.doi.org/10.1155/2012/931943 |
work_keys_str_mv | AT huiminwang sdnnrmssdasasurrogateforlfhfarevisedinvestigation AT shengchiehhuang sdnnrmssdasasurrogateforlfhfarevisedinvestigation |