Document Detail


Comparison of peak cardiopulmonary performance parameters during robotics-assisted treadmill exercise and arm crank ergometry in incomplete spinal cord injury.
MedLine Citation:
PMID:  21209477     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: (i) to compare cardiopulmonary performance parameters obtained from incremental exercise tests (IETs) performed using a robotics-assisted treadmill and an arm crank ergometer; (ii) to investigate test-retest reliability during both modes of exercise.
DESIGN: Each participant performed two IETs to the limit of tolerance on both a robotics-assisted treadmill and an arm crank ergometer.
SETTING: A Spinal Injuries Unit in the United Kingdom.
PARTICIPANTS: 10 people with an incomplete spinal cord injury (SCI).
INTERVENTIONS: Not applicable.
MAIN OUTCOME MEASURES: Peak oxygen uptake (VO(2peak)), the gas exchange threshold (GET), peak heart rate (HR(peak)) and peak lactate (Lactate(peak) were obtained for each mode of assessment. The mean responses and test-retest reliability of the main outcome measures were determined and compared between modes of assessment.
RESULTS: VO(2peak) was 16% higher (p = 0.016) and the VO2 at the GET was 40% higher (p = 0.007) during the robotics-assisted treadmill exercise (RATE) IET. There was a trend for HR(peak) to be higher during arm crank ergometry (ACE) (p = 0.058). Lactate(peak) was 46% higher (p = 0.006) during the ACE IET. During robotics-assisted exercise, the test-retest reliability was very high for VO2(peak) (r = 0.95), high for the GET (r = 0.75) and HR(peak) (r = 0.88), and moderate for Lactate(peak) (r =0.58). For ACE, the test-retest reliability was very high for VO(2peak) (r = 0.93), high for HR(peak) (r = 0.81) and Lactate(peak) (r = 0.78), and low for the GET (r = 0.16).
CONCLUSIONS: The results suggest that, when compared with ACE,RATE can be a highly effective stressor of the cardiopulmonary system, and may be a more appropriate mode of assessment to determine and monitor cardiopulmonary fitness in people with incomplete SCI.
Authors:
Lindsay P Jack; Mariel Purcell; David B Allan; Kenneth J Hunt
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Technology and health care : official journal of the European Society for Engineering and Medicine     Volume:  18     ISSN:  1878-7401     ISO Abbreviation:  Technol Health Care     Publication Date:  2010  
Date Detail:
Created Date:  2011-01-06     Completed Date:  2011-05-03     Revised Date:  2011-05-05    
Medline Journal Info:
Nlm Unique ID:  9314590     Medline TA:  Technol Health Care     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  285-96     Citation Subset:  IM    
Affiliation:
Department of Mechanical Engineering, Centre for Rehabilitation Engineering, University of Glasgow, Glasgow, UK.
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MeSH Terms
Descriptor/Qualifier:
Adult
Exercise Test / instrumentation*
Female
Heart Rate
Hemodynamics / physiology*
Humans
Lactic Acid / blood
Male
Middle Aged
Oxygen Consumption
Reproducibility of Results
Respiratory Function Tests
Robotics*
Spinal Cord Injuries / rehabilitation*
Walking / physiology*
Chemical
Reg. No./Substance:
50-21-5/Lactic Acid

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


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