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
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. Consecutive sample. Post-polio clinic, University Hospital of Occupational and Environmental Hea...
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Published in | Acta dermato-venereologica Vol. 39; no. 8; pp. 646 - 650 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Sweden
01.10.2007
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Subjects | |
Online Access | Get full text |
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Summary: | 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.
Consecutive sample.
Post-polio clinic, University Hospital of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan.
Eleven polio survivors who had a carbon KAFO prescribed at the post-polio clinic.
A carbon KAFO was prescribed, fabricated and inspected.
Oxygen consumption, oxygen cost and physiological cost index.
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).
The gait efficiency of polio survivors with a carbon KAFO was objectively better than those without an orthosis or with an ordinary KAFO. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1650-1977 0001-5555 |
DOI: | 10.2340/16501977-0105 |