Early postural adjustments associated with gait initiation and age‐related walking difficulties
Identifieur interne : 000490 ( France/Analysis ); précédent : 000489; suivant : 000491Early postural adjustments associated with gait initiation and age‐related walking difficulties
Auteurs : Sandhiran Patchay [France, Royaume-Uni] ; Yves Gahéry [France] ; Georges Serratrice [France]Source :
- Movement Disorders [ 0885-3185 ] ; 2002-03.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Personne âgée.
English descriptors
- KwdEn :
- Adjustment, Aged, Aged, 80 and over, Aging (physiology), Biomechanical Phenomena, Elderly, Female, Gait (physiology), Gait disorder, Humans, Image Processing, Computer-Assisted, Imaging, Three-Dimensional, Male, Pathophysiology, Posture, Posture (physiology), Reference Values, Video Recording, Walking (physiology), Weight-Bearing (physiology), aging, center of pressure, gait initiation, ground reaction forces, marche à petits pas, postural adjustments.
- MESH :
Abstract
To better understand the functional role of early postural adjustments associated with gait initiation, we studied ground reaction forces before the first step in a group of 10 young and 18 elderly normal subjects as well as in a group of 11 patients with marche à petits pas, an age‐related gait disorder in which difficulties in executing the first step are encountered. Kinematic data and ground reaction forces were recorded synchronously and processed by an ELITE motion analysis system. Start difficulties in the patients might be explained by impaired amplitudes and directions of anteroposterior forces as well as smaller values of vertical forces than in the controls walking with comparable step lengths. Indeed, the abnormalities of anteroposterior forces lead to defective propulsive forces, whereas the smaller upward reaction forces make the elevation of the starting leg more difficult. These perturbations are likely to reflect impairments of muscular synergies of the lower limbs manifested by disturbances in the agonist–antagonist coupling, and lack of coordination between both limbs. © 2002 Movement Disorder Society
Url:
DOI: 10.1002/mds.10074
Affiliations:
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ISTEX:7F1DABE348259BB3CB1AEE79992C9276CA785BAELe document en format XML
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Disord.</title><idno type="ISSN">0885-3185</idno><idno type="eISSN">1531-8257</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>New York</pubPlace><date type="published" when="2002-03">2002-03</date><biblScope unit="vol">17</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="317">317</biblScope><biblScope unit="page" to="326">326</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">7F1DABE348259BB3CB1AEE79992C9276CA785BAE</idno><idno type="DOI">10.1002/mds.10074</idno><idno type="ArticleID">MDS10074</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adjustment</term><term>Aged</term><term>Aged, 80 and over</term><term>Aging (physiology)</term><term>Biomechanical Phenomena</term><term>Elderly</term><term>Female</term><term>Gait (physiology)</term><term>Gait disorder</term><term>Humans</term><term>Image Processing, Computer-Assisted</term><term>Imaging, Three-Dimensional</term><term>Male</term><term>Pathophysiology</term><term>Posture</term><term>Posture (physiology)</term><term>Reference Values</term><term>Video Recording</term><term>Walking (physiology)</term><term>Weight-Bearing (physiology)</term><term>aging</term><term>center of pressure</term><term>gait initiation</term><term>ground reaction forces</term><term>marche à petits pas</term><term>postural adjustments</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Aging</term><term>Gait</term><term>Posture</term><term>Walking</term><term>Weight-Bearing</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Aged, 80 and over</term><term>Biomechanical Phenomena</term><term>Female</term><term>Humans</term><term>Image Processing, Computer-Assisted</term><term>Imaging, Three-Dimensional</term><term>Male</term><term>Reference Values</term><term>Video Recording</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Personne âgée</term><term>Physiopathologie</term><term>Posture</term><term>Réglage</term><term>Trouble marche</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Personne âgée</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To better understand the functional role of early postural adjustments associated with gait initiation, we studied ground reaction forces before the first step in a group of 10 young and 18 elderly normal subjects as well as in a group of 11 patients with marche à petits pas, an age‐related gait disorder in which difficulties in executing the first step are encountered. Kinematic data and ground reaction forces were recorded synchronously and processed by an ELITE motion analysis system. Start difficulties in the patients might be explained by impaired amplitudes and directions of anteroposterior forces as well as smaller values of vertical forces than in the controls walking with comparable step lengths. Indeed, the abnormalities of anteroposterior forces lead to defective propulsive forces, whereas the smaller upward reaction forces make the elevation of the starting leg more difficult. These perturbations are likely to reflect impairments of muscular synergies of the lower limbs manifested by disturbances in the agonist–antagonist coupling, and lack of coordination between both limbs. © 2002 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>France</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Londres</li></region><settlement><li>Londres</li><li>Marseille</li></settlement><orgName><li>Université de Londres</li></orgName></list><tree><country name="France"><noRegion><name sortKey="Patchay, Sandhiran" sort="Patchay, Sandhiran" uniqKey="Patchay S" first="Sandhiran" last="Patchay">Sandhiran Patchay</name></noRegion><name sortKey="Gahery, Yves" sort="Gahery, Yves" uniqKey="Gahery Y" first="Yves" last="Gahéry">Yves Gahéry</name><name sortKey="Serratrice, Georges" sort="Serratrice, Georges" uniqKey="Serratrice G" first="Georges" last="Serratrice">Georges Serratrice</name></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Patchay, Sandhiran" sort="Patchay, Sandhiran" uniqKey="Patchay S" first="Sandhiran" last="Patchay">Sandhiran Patchay</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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