MovDisordV3, Main, Exploration, bibRecord, 003914

Force control and disease severity in Parkinson's disease

Identifieur interne : 003914 ( Main/Exploration ); précédent : 003913; suivant : 003915

Force control and disease severity in Parkinson's disease

Auteurs : Julie A. Robichaud [États-Unis] ; Kerstin D. Pfann [États-Unis] ; David E. Vaillancourt [États-Unis] ; Cynthia L. Comella [États-Unis] ; Daniel M. Corcos [États-Unis]

Source :

Movement Disorders [ 0885-3185 ] ; 2005-04.

RBID : ISTEX:01B4FAACD0F1B7507F971A5B0E67EF1A28321CA2

Descripteurs français

Pascal (Inist)
- Contraction musculaire isométrique, Electromyographie, Force, Parkinson maladie, Relaxation, Système nerveux pathologie.

English descriptors

KwdEn :
- Acoustic Stimulation (methods), Aged, Cognition Disorders (diagnosis), Cognition Disorders (etiology), Cues, EMG, Electromyography, Female, Force, Humans, Isometric Contraction (physiology), Isometric muscular contraction, Male, Middle Aged, Muscle Contraction (physiology), Muscle Relaxation, Nervous system diseases, Neuropsychological Tests, Parkinson Disease (complications), Parkinson Disease (diagnosis), Parkinson Disease (physiopathology), Parkinson disease, Parkinson's disease, Relaxation, Time Factors, disease severity, frequency analysis, isometric contractions, muscle relaxation.
MESH :
- complications : Parkinson Disease.
- diagnosis : Cognition Disorders, Parkinson Disease.
- etiology : Cognition Disorders.
- methods : Acoustic Stimulation.
- physiology : Isometric Contraction, Muscle Contraction.
- physiopathology : Parkinson Disease.
- Aged, Cues, Electromyography, Female, Humans, Male, Middle Aged, Muscle Relaxation, Neuropsychological Tests, Time Factors.

Abstract

Several measures of isometric contractions reflect motor impairments in subjects with Parkinson's disease (PD), including long relaxation times and greater power in the 5 to 15 Hz electromyographic (EMG) bandwidth during the holding phase of contractions compared to those measures in healthy subjects. We sought to determine whether the impairments observed in subjects with PD in the performance of isometric contractions reflect disease severity. Twenty‐eight subjects with PD performed isometric contractions at a torque level equal to 50% of the torque generated during a maximum voluntary contraction while off medication. Subjects were instructed to reach the target torque as fast as possible upon hearing the auditory “go” signal and to relax their muscles when a second auditory cue signaled the end of the hold phase. There was a significant positive correlation between torque relaxation time and Unified Parkinson's Disease Rating Scale (UPDRS)‐Motor score. A significant positive correlation was also observed between the proportion of power in the 5 to 15 Hz frequency bin of the agonist EMG signal and UPDRS‐Motor score, and a significant negative correlation between the proportion of power in the 15 to 30 Hz frequency bin and UPDRS‐Motor score. These measures provide objective quantification of the severity of motor impairment that can be used to investigate the efficacy of different interventions in individuals with PD. © 2004 Movement Disorder Society

Url:

https://api.istex.fr/document/01B4FAACD0F1B7507F971A5B0E67EF1A28321CA2/fulltext/pdf

DOI: 10.1002/mds.20350

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">Several measures of isometric contractions reflect motor impairments in subjects with Parkinson's disease (PD), including long relaxation times and greater power in the 5 to 15 Hz electromyographic (EMG) bandwidth during the holding phase of contractions compared to those measures in healthy subjects. We sought to determine whether the impairments observed in subjects with PD in the performance of isometric contractions reflect disease severity. Twenty‐eight subjects with PD performed isometric contractions at a torque level equal to 50% of the torque generated during a maximum voluntary contraction while off medication. Subjects were instructed to reach the target torque as fast as possible upon hearing the auditory “go” signal and to relax their muscles when a second auditory cue signaled the end of the hold phase. There was a significant positive correlation between torque relaxation time and Unified Parkinson's Disease Rating Scale (UPDRS)‐Motor score. A significant positive correlation was also observed between the proportion of power in the 5 to 15 Hz frequency bin of the agonist EMG signal and UPDRS‐Motor score, and a significant negative correlation between the proportion of power in the 15 to 30 Hz frequency bin and UPDRS‐Motor score. These measures provide objective quantification of the severity of motor impairment that can be used to investigate the efficacy of different interventions in individuals with PD. © 2004 Movement Disorder Society</div>
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Movement Disorders (revue)

Force control and disease severity in Parkinson's disease

Force control and disease severity in Parkinson's disease

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Movement Disorders (revue)
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.