Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.

INTRODUCTION:Polyneuropathy leads to postural instability and an increased risk of falling. We investigated how impaired motor impairment and proprioceptive input due to neuropathy influences postural strategies. METHODS:Platformless bisegmental posturography data were recorded in healthy subjects a...

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Main Authors: Steno Rinalduzzi, Marco Serafini, Marco Capozza, Neri Accornero, Paolo Missori, Carlo Trompetto, Francesco Fattapposta, Antonio Currà
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4792479?pdf=render
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author Steno Rinalduzzi
Marco Serafini
Marco Capozza
Neri Accornero
Paolo Missori
Carlo Trompetto
Francesco Fattapposta
Antonio Currà
author_facet Steno Rinalduzzi
Marco Serafini
Marco Capozza
Neri Accornero
Paolo Missori
Carlo Trompetto
Francesco Fattapposta
Antonio Currà
author_sort Steno Rinalduzzi
collection DOAJ
description INTRODUCTION:Polyneuropathy leads to postural instability and an increased risk of falling. We investigated how impaired motor impairment and proprioceptive input due to neuropathy influences postural strategies. METHODS:Platformless bisegmental posturography data were recorded in healthy subjects and patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Each subject stood on the floor, wore a head and a hip electromagnetic tracker. Sway amplitude and velocity were recorded and the mean direction difference (MDD) in the velocity vector between trackers was calculated as a flexibility index. RESULTS:Head and hip postural sway increased more in patients with CIDP than in healthy controls. MDD values reflecting hip strategies also increased more in patients than in controls. In the eyes closed condition MDD values in healthy subjects decreased but in patients remained unchanged. DISCUSSION:Sensori-motor impairment changes the balance between postural strategies that patients adopt to maintain upright quiet stance. Motor impairment leads to hip postural strategy overweight (eyes open), and prevents strategy re-balancing when the sensory context predominantly relies on proprioceptive input (eyes closed).
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spelling doaj.art-e20cc5e1de58477ea33862ca162ab4192022-12-22T00:16:02ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01113e015162910.1371/journal.pone.0151629Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.Steno RinalduzziMarco SerafiniMarco CapozzaNeri AccorneroPaolo MissoriCarlo TrompettoFrancesco FattappostaAntonio CurràINTRODUCTION:Polyneuropathy leads to postural instability and an increased risk of falling. We investigated how impaired motor impairment and proprioceptive input due to neuropathy influences postural strategies. METHODS:Platformless bisegmental posturography data were recorded in healthy subjects and patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). Each subject stood on the floor, wore a head and a hip electromagnetic tracker. Sway amplitude and velocity were recorded and the mean direction difference (MDD) in the velocity vector between trackers was calculated as a flexibility index. RESULTS:Head and hip postural sway increased more in patients with CIDP than in healthy controls. MDD values reflecting hip strategies also increased more in patients than in controls. In the eyes closed condition MDD values in healthy subjects decreased but in patients remained unchanged. DISCUSSION:Sensori-motor impairment changes the balance between postural strategies that patients adopt to maintain upright quiet stance. Motor impairment leads to hip postural strategy overweight (eyes open), and prevents strategy re-balancing when the sensory context predominantly relies on proprioceptive input (eyes closed).http://europepmc.org/articles/PMC4792479?pdf=render
spellingShingle Steno Rinalduzzi
Marco Serafini
Marco Capozza
Neri Accornero
Paolo Missori
Carlo Trompetto
Francesco Fattapposta
Antonio Currà
Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.
PLoS ONE
title Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.
title_full Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.
title_fullStr Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.
title_full_unstemmed Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.
title_short Stance Postural Strategies in Patients with Chronic Inflammatory Demyelinating Polyradiculoneuropathy.
title_sort stance postural strategies in patients with chronic inflammatory demyelinating polyradiculoneuropathy
url http://europepmc.org/articles/PMC4792479?pdf=render
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