Document Detail

Exertional symptoms and exercise capacity in individuals with brain injury.
MedLine Citation:
PMID:  17083169     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To examine factors affecting cycling exercise performance in individuals with acquired brain injury. METHODS: Thirty individuals with acquired brain injury and 18 sedentary controls (SC) participated. Heart rate, bicycle power output and rating of perceived exertional (RPE) were recorded, throughout incremental cycle ergometer exercise. The SC group and 18 moderately impaired individuals from the ABI group performed a 25-W (B25) protocol. The remaining 12 individuals performed a 10-W protocol (B10). RESULTS: The B10 group terminated exercise at the lowest RPE, percentage age predicted maximal heart rate (% APMHR) and bicycle power output, followed by the B25 and then the SC group (RPE: Kruskal - Wallis test P < 0.001, %APMHR and bicycle power output: one-way ANOVA P < 0.01). RPE was correlated with %APMHR and percentage of peak bicycle output (B10 group: R2 0.1 to 0.67; B25 group: 0.69 - 0.83; SC group: 0.76 - 0.91). There was no difference in RPE at the same relative work intensity between the B25 and the sedentary control group (P > 0.05). Forward regression analysis revealed fatigue levels were predictive of %APMHR at test termination (beta = -0.411, P < 0.05) and quadriceps strength was predictive of peak bicycle power output (beta = 0.612, P < 0.05). CONCLUSIONS: Individuals with brain injury terminated exercise at lower exercise intensities but rated exertion no differently from healthy individuals. General fatigue levels predicted %APMHR and quadriceps strength predicted peak bicycle power output.
Helen Dawes; Oona M Scott; Neil K Roach; Derick T Wade
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Disability and rehabilitation     Volume:  28     ISSN:  0963-8288     ISO Abbreviation:  Disabil Rehabil     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-11-03     Completed Date:  2007-01-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9207179     Medline TA:  Disabil Rehabil     Country:  England    
Other Details:
Languages:  eng     Pagination:  1243-50     Citation Subset:  IM    
Department of Clinical Neurology, School of Biological and Molecular Sciences, University of Oxford, Oxford Brookes University, Gipsy Lane, Headington, Oxford OX3 0BP, UK.
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MeSH Terms
Brain Injuries / physiopathology*,  rehabilitation*
Exercise Test
Exercise Tolerance*
Middle Aged
Physical Exertion*
Stroke / physiopathology*,  rehabilitation*

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