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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2011-9-16
pubmed:abstractText
Changes in the biomechanics of gait may alter the energy requirements of walking in Parkinson's Disease (PD). This study investigated economy of gait during submaximal treadmill walking in 79 subjects with mild to moderate PD and the relationship between gait economy and 6-minute walk distance (6?MW). Oxygen consumption (VO(2)) at the self-selected treadmill walking speed averaged 64% of peak oxygen consumption (VO(2) peak). Submaximal VO(2) levels exceeded 70% of VO(2) peak in 30% of the subjects. Overall the mean submaximal VO(2) was 51% higher than VO(2) levels expected for the speed and grade consistent with severe impairment in economy of gait. There was an inverse relationship between economy of gait and 6MW (r = -0.31, P < 0.01) and with the self-selected walking speed (r = -0.35, P < 0.01). Thus, the impairment in economy of gait and decreased physiologic reserve result in routine walking being performed at a high percentage of VO(2) peak.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:issn
2042-0080
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
2012
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
241754
pubmed:year
2012
pubmed:articleTitle
Impaired economy of gait and decreased six-minute walk distance in Parkinson's disease.
pubmed:affiliation
Baltimore Veterans Affairs Medical Center and Geriatrics Research Education and Clinical Center, Baltimore, MD 20201, USA.
pubmed:publicationType
Journal Article