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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1995-3-28
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pubmed:abstractText |
The aim of this investigation was to determine, utilising an electromyographic (EMG) technique, the influence of the ageing process on the neuromotor control of the stoop-lift. Seven elderly (60-75 years) and seven young (18-25 years) subjects completed a series of ten unresisted (no weight) stoop-lifts. EMG potentials were recorded with 4-mm bipolar surface electrodes from the erector spinae and medial hamstring muscle groups. The temporal features of the stoop-lift itself were recorded with an electrogoniometer. The results of this investigation showed that the elderly subjects had a significantly (p < 0.05) earlier onset of the erector spinae muscle during the up-phase of the stoop-lift compared to the younger subjects. In addition, reactivation of the erector spinae muscle in the up-phase occurred at hand positions significantly (p < 0.05) closer to the floor in the elderly group indicating more stooped postures. Thus the EMG profiles of the erector spinae within the elderly subjects performing unresisted stoop-lifts approximated those previously reported in younger subjects performing resisted (with a weight) lifting. The earlier onset of the erector spinae in the up-phase of the stoop-lift was partially explained by a significant (p < 0.05) reduction in flexibility (sit and reach test) associated with the elderly subjects. The results further stress the potential for injury associated with the utilisation of the stoop-lift, particularly by elderly populations.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0304-324X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
298-306
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:7867959-Adolescent,
pubmed-meshheading:7867959-Adult,
pubmed-meshheading:7867959-Aged,
pubmed-meshheading:7867959-Aging,
pubmed-meshheading:7867959-Electromyography,
pubmed-meshheading:7867959-Exercise,
pubmed-meshheading:7867959-Humans,
pubmed-meshheading:7867959-Lifting,
pubmed-meshheading:7867959-Middle Aged,
pubmed-meshheading:7867959-Muscle, Skeletal,
pubmed-meshheading:7867959-Nervous System Physiological Phenomena
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pubmed:year |
1994
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pubmed:articleTitle |
Neuromuscular control of lifting in the elderly.
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pubmed:affiliation |
Department of Biomedical Science, University of Wollongong, Australia.
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pubmed:publicationType |
Journal Article,
Comparative Study
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