Document Detail

Oxygen consumption, oxygen cost and physiological cost index in polio survivors: a comparison of walking without orthosis, with an ordinary or a carbon-fibre reinforced plastic knee-ankle-foot orthosis.
MedLine Citation:
PMID:  17896057     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To examine, for polio survivors, whether walking with a carbon-fibre reinforced plastic knee-ankle-foot orthosis (carbon KAFO) is more efficient than walking with an ordinary KAFO or without an orthosis.
DESIGN: Consecutive sample.
SETTING: Post-polio clinic, University Hospital of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan.
PARTICIPANTS: Eleven polio survivors who had a carbon KAFO prescribed at the post-polio clinic.
INTERVENTIONS: A carbon KAFO was prescribed, fabricated and inspected.
MAIN OUTCOME MEASURES: Oxygen consumption, oxygen cost and physiological cost index.
RESULTS: An ordinary KAFO weighed 1403 g (standard deviation(SD) 157 g), whereas a carbon KAFO weighed 992 g (SD 168 g). Subjects walking with a carbon KAFO showed a tendency to increase step length, and to increase speed significantly compared with walking without an orthosis and with an ordinary KAFO (paired t-test, p < 0.05). Oxygen consumption per body weight, oxygen cost (O2 consumption for 1-m walk divided by body weight) and physiological cost index ((heart rate at 3-min walk - heart rate at rest) /speed) were significantly lower than those walking without an orthosis (-16%, -35%, -33%; paired t-test, p < 0.05) and were lower than those walking with an ordinary KAFO (-9%, -14%, -15%; paired t-test, p < 0.05).
CONCLUSION: The gait efficiency of polio survivors with a carbon KAFO was objectively better than those without an orthosis or with an ordinary KAFO.
Kenji Hachisuka; Kenichiro Makino; Futoshi Wada; Satoru Saeki; Nami Yoshimoto
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of rehabilitation medicine     Volume:  39     ISSN:  1650-1977     ISO Abbreviation:  J Rehabil Med     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-09-26     Completed Date:  2007-11-08     Revised Date:  2014-05-30    
Medline Journal Info:
Nlm Unique ID:  101088169     Medline TA:  J Rehabil Med     Country:  Sweden    
Other Details:
Languages:  eng     Pagination:  646-50     Citation Subset:  IM    
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MeSH Terms
Energy Metabolism
Gait / physiology
Middle Aged
Orthotic Devices*
Oxygen Consumption*
Postpoliomyelitis Syndrome / metabolism,  physiopathology,  rehabilitation*
Walking* / physiology
Reg. No./Substance:

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