MovDisordV3, Main, Merge, bibRecord, 004D98

Sway patterns in orthostatic tremor: Impairment of postural control mechanisms

Identifieur interne : 004D98 ( Main/Merge ); précédent : 004D97; suivant : 004D99

Sway patterns in orthostatic tremor: Impairment of postural control mechanisms

Auteurs : Ann M. Bacsi [Australie] ; Victor S. C. Fung [Australie] ; James G. Colebatch [Australie]

Source :

Movement Disorders [ 0885-3185 ] ; 2005-11.

RBID : ISTEX:28D52E902CD441C71F87E298AED970A306D16605

English descriptors

KwdEn :
- Aged, Case-Control Studies, Electromyography (methods), Female, Humans, Male, Middle Aged, Postural Balance (physiology), Posture, Somatosensory Disorders (etiology), Tremor (physiopathology), orthostatic tremor, postural control, proprioception, sway.
MESH :
- etiology : Somatosensory Disorders.
- methods : Electromyography.
- physiology : Postural Balance.
- physiopathology : Tremor.
- Aged, Case-Control Studies, Female, Humans, Male, Middle Aged, Posture.

Abstract

Sway parameters in orthostatic tremor (OT) patients were compared with age‐matched controls. The effects of vision (eyes open or closed), stance width (feet apart or together), and external support (with or without) on sway and 14–18 Hz energy were measured. Sway in OT patients decreased in the presence of each of the stabilizing factors but the extent of benefit obtained by OT patients was significantly less than controls for support for the sagittal plane (22% vs. 42% decrease; P < 0.01) and feet apart in the mediolateral plane (38% vs. 65% decrease; P < 0.01). Three patients with proprioceptive loss also had a reduced response to these factors. Energy in the 14–18 Hz range did not always change in parallel with sway levels. Vision suppresses activity at the OT frequency in patients. Postural control mechanisms in OT remain responsive to postural conditions, but patients differ significantly from normals in the degree of their responsiveness. OT appears to have disruption of the normal generation or processing of proprioceptive signals as one of its important components. © 2005 Movement Disorder Society

Url:

https://api.istex.fr/document/28D52E902CD441C71F87E298AED970A306D16605/fulltext/pdf

DOI: 10.1002/mds.20600

Links to Exploration step

ISTEX:28D52E902CD441C71F87E298AED970A306D16605

Le document en format XML

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<front><div type="abstract" xml:lang="en">Sway parameters in orthostatic tremor (OT) patients were compared with age‐matched controls. The effects of vision (eyes open or closed), stance width (feet apart or together), and external support (with or without) on sway and 14–18 Hz energy were measured. Sway in OT patients decreased in the presence of each of the stabilizing factors but the extent of benefit obtained by OT patients was significantly less than controls for support for the sagittal plane (22% vs. 42% decrease; P < 0.01) and feet apart in the mediolateral plane (38% vs. 65% decrease; P < 0.01). Three patients with proprioceptive loss also had a reduced response to these factors. Energy in the 14–18 Hz range did not always change in parallel with sway levels. Vision suppresses activity at the OT frequency in patients. Postural control mechanisms in OT remain responsive to postural conditions, but patients differ significantly from normals in the degree of their responsiveness. OT appears to have disruption of the normal generation or processing of proprioceptive signals as one of its important components. © 2005 Movement Disorder Society</div>
</front>
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<front><div type="abstract" xml:lang="en">Sway parameters in orthostatic tremor (OT) patients were compared with age‐matched controls. The effects of vision (eyes open or closed), stance width (feet apart or together), and external support (with or without) on sway and 14–18 Hz energy were measured. Sway in OT patients decreased in the presence of each of the stabilizing factors but the extent of benefit obtained by OT patients was significantly less than controls for support for the sagittal plane (22% vs. 42% decrease; P < 0.01) and feet apart in the mediolateral plane (38% vs. 65% decrease; P < 0.01). Three patients with proprioceptive loss also had a reduced response to these factors. Energy in the 14–18 Hz range did not always change in parallel with sway levels. Vision suppresses activity at the OT frequency in patients. Postural control mechanisms in OT remain responsive to postural conditions, but patients differ significantly from normals in the degree of their responsiveness. OT appears to have disruption of the normal generation or processing of proprioceptive signals as one of its important components. © 2005 Movement Disorder Society</div>
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<front><div type="abstract" xml:lang="en">Sway parameters in orthostatic tremor (OT) patients were compared with age-matched controls. The effects of vision (eyes open or closed), stance width (feet apart or together), and external support (with or without) on sway and 14-18 Hz energy were measured. Sway in OT patients decreased in the presence of each of the stabilizing factors but the extent of benefit obtained by OT patients was significantly less than controls for support for the sagittal plane (22% vs. 42% decrease; P < 0.01) and feet apart in the mediolateral plane (38% vs. 65% decrease; P < 0.01). Three patients with proprioceptive loss also had a reduced response to these factors. Energy in the 14-18 Hz range did not always change in parallel with sway levels. Vision suppresses activity at the OT frequency in patients. Postural control mechanisms in OT remain responsive to postural conditions, but patients differ significantly from normals in the degree of their responsiveness. OT appears to have disruption of the normal generation or processing of proprioceptive signals as one of its important components.</div>
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Movement Disorders (revue)

Sway patterns in orthostatic tremor: Impairment of postural control mechanisms

Sway patterns in orthostatic tremor: Impairment of postural control mechanisms

Source :

English descriptors

Abstract

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

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

	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.