MovDisordV3, PubMed, Corpus, bibRecord, 001E06

Impairments of speed and amplitude of movement in Parkinson's disease: a pilot study.

Identifieur interne : 001E06 ( PubMed/Corpus ); précédent : 001E05; suivant : 001E07

Impairments of speed and amplitude of movement in Parkinson's disease: a pilot study.

Auteurs : Alberto J. Espay ; Dorcas E. Beaton ; Francesca Morgante ; Carolyn A. Gunraj ; Anthony E. Lang ; Robert Chen

Source :

Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2009.

RBID : pubmed:19230031

English descriptors

KwdEn :
- Aged, Aged, 80 and over, Biomechanical Phenomena, Cross-Sectional Studies, Disability Evaluation, Female, Humans, Hypokinesia (etiology), Male, Middle Aged, Parkinson Disease (complications), Pilot Projects, Psychomotor Performance (physiology), Reproducibility of Results, Severity of Illness Index, Task Performance and Analysis.
MESH :
- complications : Parkinson Disease.
- etiology : Hypokinesia.
- physiology : Psychomotor Performance.
- Aged, Aged, 80 and over, Biomechanical Phenomena, Cross-Sectional Studies, Disability Evaluation, Female, Humans, Male, Middle Aged, Pilot Projects, Reproducibility of Results, Severity of Illness Index, Task Performance and Analysis.

Abstract

Bradykinesia, characterized by slowness and decreased amplitude of movement, is often considered the most important deficit in Parkinson's disease (PD). The current clinical rating of bradykinesia in PD, based on the motor subscale of the Unified Parkinson's disease Rating Scale (UPDRS-III), does not individually weigh the impairments in speed and amplitude of rapid alternating movements. We sought to categorize movement in PD to determine whether speed and amplitude have different relationships to current measures of motor impairment and disability. Categories of speed and amplitude (normal, slow/low, and very-slow/very-low) were ascertained using an electromagnetic tracking device. Amplitude was disproportionally more affected than speed in the "off" state. UPDRS-III and the Schwab & England disability scale were worst in patients with very impaired amplitude and best in patients with normal amplitude. A similarly graded relationship was not found for categories of speed impairment. The examiner clinical global impression of change mirrored "off" state amplitude but not speed categories. Levodopa, however, normalized speed to a greater extent than amplitude. Our observations suggest that amplitude and speed impairments may be associated with different functional aspects in PD and deserve separate clinical assessment.

DOI: 10.1002/mds.22480
PubMed: 19230031

Links to Exploration step

pubmed:19230031

Le document en format XML

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<author><name sortKey="Gunraj, Carolyn A" sort="Gunraj, Carolyn A" uniqKey="Gunraj C" first="Carolyn A" last="Gunraj">Carolyn A. Gunraj</name>
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<front><div type="abstract" xml:lang="en">Bradykinesia, characterized by slowness and decreased amplitude of movement, is often considered the most important deficit in Parkinson's disease (PD). The current clinical rating of bradykinesia in PD, based on the motor subscale of the Unified Parkinson's disease Rating Scale (UPDRS-III), does not individually weigh the impairments in speed and amplitude of rapid alternating movements. We sought to categorize movement in PD to determine whether speed and amplitude have different relationships to current measures of motor impairment and disability. Categories of speed and amplitude (normal, slow/low, and very-slow/very-low) were ascertained using an electromagnetic tracking device. Amplitude was disproportionally more affected than speed in the "off" state. UPDRS-III and the Schwab & England disability scale were worst in patients with very impaired amplitude and best in patients with normal amplitude. A similarly graded relationship was not found for categories of speed impairment. The examiner clinical global impression of change mirrored "off" state amplitude but not speed categories. Levodopa, however, normalized speed to a greater extent than amplitude. Our observations suggest that amplitude and speed impairments may be associated with different functional aspects in PD and deserve separate clinical assessment.</div>
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	Movement Disorders (revue)
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Movement Disorders (revue)

Impairments of speed and amplitude of movement in Parkinson's disease: a pilot study.

Impairments of speed and amplitude of movement in Parkinson's disease: a pilot study.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki