Onset and offset exercise response model in electronic terms

Zhang, Y; Haddad, A; Su, SW; Celler, BG; Nguyen, HT

Onset and offset exercise response model in electronic terms

Zhang, Y Haddad, A Su, SW

Celler, BG Nguyen, HT

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Publication Type:: Conference Proceeding
Citation:: Proceedings of the 9th IASTED International Conference on Biomedical Engineering, BioMed 2012, 2012, pp. 122 - 128
Issue Date:: 2012-07-16

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Field	Value	Language
dc.contributor.author	Zhang, Y	en_US
dc.contributor.author	Haddad, A	en_US
dc.contributor.author	Su, SW https://orcid.org/0000-0002-5720-8852	en_US
dc.contributor.author	Celler, BG	en_US
dc.contributor.author	Nguyen, HT https://orcid.org/0000-0003-3373-8178	en_US
dc.date.issued	2012-07-16	en_US
dc.identifier.citation	Proceedings of the 9th IASTED International Conference on Biomedical Engineering, BioMed 2012, 2012, pp. 122 - 128	en_US
dc.identifier.isbn	9780889869097	en_US
dc.identifier.uri	http://hdl.handle.net/10453/23112
dc.description.abstract	This paper investigated human heart rate (HR) and oxygen uptake (VO 2) dynamics to running exercise and developed an electronic circuitry based mathematical model to quantitatively depict the metabolic and energy-generating process at both onset and offset of exercises. In order to investigate transient responses of both HR and VO 2, eight healthy male subjects were asked to run on a motor-controlled treadmill exercise under a predefined running protocol. Heart rate and oxygen consumption were monitored and recorded using a COSMED portable gas analyzer (K4b 2, Cosmed). The observed experimental results verified the belief that cardio-respiratory responses dynamics at onset and offset of moderate or high intense exercises are significantly different. In order to find a rational explanation for this phenomenon, a novel idea was inspired by applying a simple switchable resistance-capacitor (RC) circuit to unify the complex dynamics at onset and offset of exercises. The proposed physical system can not only analytically explain body's energy-generating process, metabolism and cardio-respiratory responses, but also mathematically account for cardiorespiratory dynamics at both onset and offset of exercises, in which the continuity of the output and states during switching is guaranteed.	en_US
dc.relation.ispartof	Proceedings of the 9th IASTED International Conference on Biomedical Engineering, BioMed 2012	en_US
dc.relation.isbasedon	10.2316/P.2012.764-114	en_US
dc.title	Onset and offset exercise response model in electronic terms	en_US
dc.type	Conference Proceeding
utslib.for	0903 Biomedical Engineering	en_US
dc.location.activity	Innsbruck, Austria	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US

Abstract:

This paper investigated human heart rate (HR) and oxygen uptake (VO 2) dynamics to running exercise and developed an electronic circuitry based mathematical model to quantitatively depict the metabolic and energy-generating process at both onset and offset of exercises. In order to investigate transient responses of both HR and VO 2, eight healthy male subjects were asked to run on a motor-controlled treadmill exercise under a predefined running protocol. Heart rate and oxygen consumption were monitored and recorded using a COSMED portable gas analyzer (K4b 2, Cosmed). The observed experimental results verified the belief that cardio-respiratory responses dynamics at onset and offset of moderate or high intense exercises are significantly different. In order to find a rational explanation for this phenomenon, a novel idea was inspired by applying a simple switchable resistance-capacitor (RC) circuit to unify the complex dynamics at onset and offset of exercises. The proposed physical system can not only analytically explain body's energy-generating process, metabolism and cardio-respiratory responses, but also mathematically account for cardiorespiratory dynamics at both onset and offset of exercises, in which the continuity of the output and states during switching is guaranteed.

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http://hdl.handle.net/10453/23112