Document Detail


Absence of training-specific cardiac adaptation in paraplegic athletes.
MedLine Citation:
PMID:  12439071     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The distinctive nature of left ventricular (LV) adaptation reported in able-bodied endurance- and power-trained athletes probably reflects the different hemodynamic loading patterns that occur during acute exercise. The exercise-induced hemodynamic loads in spinal cord injured athletes are different to those in able-bodied counterparts (lower venous return and stroke volume, higher heart rate). We sought to test the hypothesis that wall thickness, but not chamber dimension, would be larger in endurance- and power-trained spinal cord injured athletes compared with sedentary spinal cord injured subjects. METHODS: We undertook resting two-dimensional, motion-mode, and Doppler examinations of 11 power-trained, 10 endurance-trained, and 5 sedentary spinal cord injured volunteers and compared structural and functional LV data by using ANOVA. LV structural data were also analyzed after being scaled to body mass (BM)(0.33). RESULTS: There were no statistically significant differences among groups for any of the LV structural or functional measurements. However, there was a trend for larger mean wall thickness (0.95 +/- 0.12 vs 0.83 +/- 0.10 cm) and left ventricular mass (193 +/- 57 vs 164 +/- 66 g) in athletes compared with sedentary individuals. CONCLUSION: It seems unlikely that endurance and power training elicits distinctive patterns of LV enlargement in spinal cord injured athletes. Small adaptations of the left ventricle may occur with athletic training in the spinal cord injured athlete. Research within this population is complicated by extreme heterogeneity in important physical, physiological, and athletic-related variables.
Authors:
Phillip E Gates; Ian G Campbell; Keith P George
Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  34     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2002 Nov 
Date Detail:
Created Date:  2002-11-19     Completed Date:  2003-03-06     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1699-704     Citation Subset:  IM; S    
Affiliation:
Department of Exercise and Sport Science, Manchester Metropolitan University, Alsager Faculty, Cheshire, United Kingdom. phillip@spot.colorado.edu
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological*
Adolescent
Adult
Analysis of Variance
Echocardiography, Doppler
Female
Heart Function Tests
Heart Rate / physiology
Hemodynamics / physiology
Humans
Hypertrophy, Left Ventricular / physiopathology*,  ultrasonography
Life Style*
Male
Paraplegia / diagnosis,  rehabilitation*
Physical Endurance / physiology*
Probability
Reference Values
Sampling Studies
Sensitivity and Specificity
Spinal Cord Injuries / diagnosis,  rehabilitation*
Sports*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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