Document Detail


Adapting Workload Improves the Measurement of Heart Rate Recovery.
MedLine Citation:
PMID:  21618159     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Heart rate after a standardized test varies with a change in training status, possibly compromising the accuracy of measuring changes in heart rate recovery (HRR). The aim of this study was to determine if a change in the exercise intensity would result in a change in heart rate recovery and/or the accuracy of the heart rate recovery measurement. 31 subjects performed 4 submaximal running tests (HIMS). Based on the heart rate after the first HIMS, subjects either completed 4 identical HIMS (SAME (n=9)), 2 standard and 2 faster HIMS (FASTER (n=10)) or 2 standard and 2 slower HIMS (SLOWER (n=12)). Although no changes in heart rate recovery were found when the HIMS protocol was adapted, lower coefficients of variation (CV) and typical errors of measurement (TEM) were found in the SLOWER (CV: 11±7 to 5±3% ( P=0.025)), TEM: 6 to 3 beats and FASTER group (CV: 11±7 to 4±3% ( P=0.048), TEM: 7 to 3 beats). To ensure the highest level of sensitivity in detecting meaningful changes in HRR over time, submaximal testing protocols should target exercise intensities ranging in-between 86-93% of heart rate maximum.
Authors:
R P Lamberts; S Maskell; J Borresen; M I Lambert
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-26
Journal Detail:
Title:  International journal of sports medicine     Volume:  -     ISSN:  1439-3964     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-5-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© Georg Thieme Verlag KG Stuttgart · New York.
Affiliation:
UCT/MRC Research Unit for Exercise Science and Sports Medicine, Faculty of Health Sciences, Department of Human Biology, University of Cape Town, South Africa.
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