Linked Life Data

9660100

Source:http://linkedlifedata.com/resource/pubmed/id/9660100

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1998-9-16
pubmed:abstractText
Because in the literature bradykinesia and hypokinesia are frequently confounded, we assessed the relation between these two fundamental aspects of altered movement and the influence of disease severity on these measures in 41 patients with Parkinson's disease (PD) and 24 age-matched healthy controls. Bradykinesia was measured with a test microcomputer interfaced with a response-board. Hypokinesia was assessed by activity monitoring at home over a period of 5 successive days. For each subject the choice reaction time and measures reflecting bradykinesia (tap rate, movement time) and hypokinesia (movement index, duration of immobility periods) were calculated. Patients with PD had a normal choice reaction time and a significantly impaired execution of voluntary movement and reduced amount of movement over time. Bradykinesia was clearly present in the less affected patients with PD, and worsened as the disease severity increased. Hypokinesia, however, emerged prominently only in the more affected patients. There was a striking lack of relation between the measures that reflect bradykinesia and hypokinesia. The use of levodopa or dopamine agonists did not confound these findings. Our findings show the very different character and course of two tiers of altered movement in patients with PD and question the causative mechanisms of both motor features in PD. A more precise use of the terms brady- and hypokinesia is a prerequisite for future studies that attempt to provide insight in the causative mechanisms of both motor features.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0300-9564
pubmed:author
pubmed:issnType
Print
pubmed:volume
105
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
229-37
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Bradykinesia and hypokinesia in Parkinson's disease: what's in a name?
pubmed:affiliation
Department of Neurology, Leiden University Medical Center, The Netherlands.
pubmed:publicationType
Journal Article, Clinical Trial