Document Detail

Maximal Aerobic and Anaerobic Exercise Responses in Children with Cerebral Palsy.
MedLine Citation:
PMID:  23034639     Owner:  NLM     Status:  Publisher    
PURPOSE: Purpose: To compare the maximal aerobic and anaerobic exercise responses of children with cerebral palsy (CP) by level of motor impairment and in comparison with those of typically developing children (TD). METHODS: Seventy children with CP, with varying levels of motor impairment (Gross Motor Function Classification System, [GMFCS I-III]) and 31 TD performed an incremental continuous maximal aerobic exercise test and a 20 s anaerobic Wingate test on a cycle ergometer. Peak oxygen uptake (VO2peak), anaerobic threshold (AT), peak ventilation (VEpeak), peak oxygen pulse (peak O2 pulse), peak ventilatory equivalent of oxygen (peak VE/VO2) and carbon dioxide (peak VE/VCO2), peak aerobic power output (POpeak) and mean anaerobic power (P20mean) were measured. Isometric leg muscle strength was determined as a secondary outcome. RESULTS: Analysis revealed a lower VO2peak for CP (I:35.5±1.2(SE); II:33.9±1.6; III:29.3±2.5 mL·kg·min) compared to TD (41.0±1.3, p<0.001) and a similar effect for AT (I:19.4±0.9; II:19.2±1.2; III:15.5±1.9; TD:24.1±1.0 mL·kg·min, p<0.001). VEpeak and peak O2 pulse were also lower, while peak VE/VCO2 was higher in CP compared to TD (p<0.05), and peak VE/VO2 similar between groups. All these variables showed no differences for different motor impairment levels. POpeak was lower for CP (I: 2.4±0.1; II: 1.8±0.1; III: 1.4±0.2 W·kg) versus TD (3.0±0.1, p<0.001), together with lower P20mean in CP (I:4.6±0.2; II:3.3±0.2; III: 2.5±0.4 W·kg) versus TD (6.4±0.2, p<0.001), and both decreased significantly with increasing motor impairment. CONCLUSION: Children with CP have decreased aerobic and anaerobic exercise responses but decreases in respiratory and aerobic exercise responses were not as severe as predicted by motor impairment. Future research should reveal the role of inactivity on the exercise responses of children with CP and possibilities for improvement through training interventions.
Astrid C J Balemans; Leontien van Wely; Susan J A de Heer; Janneke van den Brink; Jos J de Koning; Jules G Becher; Annet J Dallmeijer
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-2
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  -     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
1Department of Rehabilitation Medicine, MOVE Research Institute, VU University Medical Center, Amsterdam, The Netherlands; 2EMGO+ Institute for Health and Care Research, VU University, Amsterdam, The Netherlands;
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