title: Short-term effect of neck muscle vibration on postural disturbances in stroke patients.
abstract: Balance disorders after stroke have a particularly detrimental influence on recovery of autonomy and walking. The present study is aimed at assessing the effect of proprioceptive stimulation by neck muscle vibration (NMV) on the balance of patients with right hemispheric lesion (RHL) and left hemispheric lesion (LHL). Thirty-one (31) patients (15 RHL and 16 LHL), mean age 61.5 years (±10.6), mean delay 3.1 (±1.6) months after one hemispheric stroke were included in this prospective study. The mean position in mediolateral and anteroposterior plane of the CoP (center of pressure) and the surface were evaluated using a force platform at rest and immediately after 10 min of vibration on the contralesional dorsal neck muscle. NMV decreases the lateral deviation balance induced by the stroke. Twenty patients (64.5 %) experienced a visual illusion of light spot moving toward the side opposite stimulus. These patients showed more improvement by vibration than those without visual illusion. There was an interaction between sensitivity and side of stroke on the effect of NMV. Proprioceptive stimulation by NMV reduces postural asymmetry after stroke. This short-term effect of the vibration is more effective in patients susceptible to visual illusion. This result was consistent with a central effect of NMV on the structures involved in the elaboration of perception of body in space.
authors.affiliation: Physical and Rehabilitation Medicine Department, University Hospital of Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France. stephanie.leplaideur@chu-rennes.fr.|Neurology Physical and Rehabilitation Medicine Department, KERPAPE, BP 78, 56275, Ploemeur Cedex, France. stephanie.leplaideur@chu-rennes.fr.
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Leplaideur
authors.affiliation: Physical and Rehabilitation Medicine Department, University Hospital of Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
authors.forename: Emilie
authors.initials: E
authors.lastname: Leblong
authors.affiliation: Physical and Rehabilitation Medicine Department, University Hospital of Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
authors.forename: Karim
authors.initials: K
authors.lastname: Jamal
authors.affiliation: Department of Clinical Pharmacology, Clinical Investigation Center INSERM 1414, University Hospital of Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
authors.forename: Chloé
authors.initials: C
authors.lastname: Rousseau
authors.affiliation: Physical and Rehabilitation Medicine Department, Hospital of Boulogne sur Mer, 33 Rue Jacques Monod, 62200, Boulogne sur Mer, France.
authors.forename: Annelise Moulinet
authors.initials: AM
authors.lastname: Raillon
authors.affiliation: Neurology Physical and Rehabilitation Medicine Department, KERPAPE, BP 78, 56275, Ploemeur Cedex, France.
authors.forename: Pauline
authors.initials: P
authors.lastname: Coignard
authors.affiliation: Physical and Rehabilitation Medicine Department, University Hospital of Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
authors.forename: Mireille
authors.initials: M
authors.lastname: Damphousse
authors.affiliation: Physical and Rehabilitation Medicine Department, University Hospital of Rennes, 2 Rue Henri Le Guilloux, 35033, Rennes, France.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Bonan
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007088:Illusions / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D009334:Neck Muscles / Q000502:physiology* / Q000503:physiopathology; D004856:Postural Balance / Q000502:physiology*; D011434:Proprioception / Q000502:physiology*; D011446:Prospective Studies; D020521:Stroke / Q000503:physiopathology*; D000071939:Stroke Rehabilitation; D014732:Vibration / Q000627:therapeutic use*
keywords: Balance control; Neck muscle vibration; Posturography; Stroke