Document Detail

Dynamic modelling of heart rate response under different exercise intensity.
MedLine Citation:
PMID:  20694159     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Heart rate is one of the major indications of human cardiovascular response to exercises. This study investigates human heart rate response dynamics to moderate exercise. A healthy male subject has been asked to walk on a motorised treadmill under a predefined exercise protocol. ECG, body movements, and oxygen saturation (SpO2) have been reliably monitored and recorded by using non-invasive portable sensors. To reduce heart rate variation caused by the influence of various internal or external factors, the designed step response protocol has been repeated three times. Experimental results show that both steady state gain and time constant of heart rate response are not invariant when walking speed is faster than 3 miles/hour, and time constant of offset exercise is noticeably longer than that of onset exercise.
Steven W Su; Weidong Chen; Dongdong Liu; Yi Fang; Weijun Kuang; Xiaoxiang Yu; Tian Guo; Branko G Celler; Hung T Nguyen
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Publication Detail:
Type:  Journal Article     Date:  2010-05-28
Journal Detail:
Title:  The open medical informatics journal     Volume:  4     ISSN:  1874-4311     ISO Abbreviation:  Open Med Inform J     Publication Date:  2010  
Date Detail:
Created Date:  2010-08-09     Completed Date:  2011-07-14     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  101480483     Medline TA:  Open Med Inform J     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  81-5     Citation Subset:  -    
Department of Automation, Shanghai Jiao Tong University, Shanghai, China.
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