Document Detail

The individual relationship between heart rate and oxygen uptake in people with a tetraplegia during exercise.
MedLine Citation:
PMID:  16801936     Owner:  NLM     Status:  MEDLINE    
STUDY DESIGN: Descriptive study.
OBJECTIVE: To examine the individual heart rate-oxygen uptake (HR-VO(2)) relationship during exercise in persons with tetraplegia (TP).
SETTING: Rehabilitation Centre Heliomare, Wijk aan Zee, The Netherlands.
METHODS: The HR-VO(2) relationship was determined in untrained subjects with motor complete TP (C5 or C6, n=10 and C7 or C8, n=10) during a discontinuous graded exercise hand cycle test. The mean HR and VO(2) of the final 60 s of 2-min exercise blocks were used for calculation of the individual correlation coefficient and the standard error of the estimate (SEE).
RESULTS: Two subjects of the C5-C6 group were not able to complete the test. Individual Pearson's correlation coefficients (r) ranged from 0.68 to 0.97 and SEE from 2.6 to 22.4% VO(2)-Reserve (VO(2)R). The mean Pearson's r and SEE were 0.81+/-0.12 and 10.6+/-5.6% VO(2)R in the C5-C6 group and 0.91+/-0.07 and 7.0+/-3.2% VO(2)R in the C7-C8 group, respectively. Two subjects of the C5-C6 group and six subjects of the C7-C8 group attained a linear HR-VO(2) relationship with an acceptable SEE (< or =6.0%) and r (>0.90).
CONCLUSIONS: The HR-VO(2) relationship appeared linear in only eight out of 18 subjects. An individual analysis of the HR-VO(2) relationship is necessary to determine whether HR can be used to quantify exercise intensity. The use of HR to prescribe training intensity should be reconsidered in persons with TP.
SPONSORSHIP: This study is supported from a grant by ZON-MW.
L J M Valent; A J Dallmeijer; H Houdijk; J Slootman; T W J Janssen; A P Hollander; L H V van der Woude
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-06-27
Journal Detail:
Title:  Spinal cord     Volume:  45     ISSN:  1362-4393     ISO Abbreviation:  Spinal Cord     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-01-04     Completed Date:  2007-03-02     Revised Date:  2011-06-06    
Medline Journal Info:
Nlm Unique ID:  9609749     Medline TA:  Spinal Cord     Country:  England    
Other Details:
Languages:  eng     Pagination:  104-11     Citation Subset:  IM    
Heliomare Rehabilitation Centre, Relweg 51, 1949 EC Wijk aan Zee, The Netherlands.
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MeSH Terms
Exercise / physiology*
Heart Rate / physiology*
Middle Aged
Oxygen Consumption / physiology*
Quadriplegia / physiopathology*,  rehabilitation

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