Document Detail

Experimental Heart Rate Regulation in Cycle-Ergometer Exercises.
MedLine Citation:
PMID:  23086500     Owner:  NLM     Status:  Publisher    
The heart rate can be effectively used as a measure of the exercise intensity during long duration cycle-ergometer exercises: precisely controlling the heart rate becomes crucial especially for athletes or patients with cardiovascular/obesity problems. The aim of this letter is to experimentally show how the non-local and non-switching nonlinear control that has been recently proposed in the literature for the heart rate (HR) regulation in treadmill exercises can be effectively applied to cycle-ergometer exercises at constant cycling speed. The structure of the involved nonlinear model for the heart rate dynamics in cycle-ergometer exercises is mathematically inspired by the structure of a recently identified and experimentally validated nonlinear model for the heart rate dynamics in treadmill exercises: the role played by the treadmill speed is played here by the work load while the zero speed case for the treadmill exercise is here translated into the cycling operation under zero work load. Experimental results not only validate the aforementioned nonlinear model but also demonstrate the effectiveness - in terms of precise heart rate regulation - of an approach which simply generalizes to the nonlinear framework the classical proportionalintegral control design. The possibility of on-line modifying the heart rate reference on the basis of the heart rate variability (HRV) is also suggested and experimentally motivated.
M Paradiso; S Pietrosanti; S Scalzi; P Tomei; C Verrelli
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-16
Journal Detail:
Title:  IEEE transactions on bio-medical engineering     Volume:  -     ISSN:  1558-2531     ISO Abbreviation:  IEEE Trans Biomed Eng     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0012737     Medline TA:  IEEE Trans Biomed Eng     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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