Evaluation of robotic training forces that either enhance or reduce error in chronic hemiparetic stroke survivors
Identifieur interne : 006363 ( Main/Merge ); précédent : 006362; suivant : 006364Evaluation of robotic training forces that either enhance or reduce error in chronic hemiparetic stroke survivors
Auteurs : James L. Patton [États-Unis] ; Mary Ellen Stoykov [États-Unis] ; Mark Kovic [États-Unis] ; Ferdinando A. Mussa-Ivaldi [États-Unis]Source :
- Experimental brain research [ 0014-4819 ] ; 2006.
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Abstract
This investigation is one in a series of studies that address the possibility of stroke rehabilitation using robotic devices to facilitate "adaptive training." Healthy subjects, after training in the presence of systematically applied forces, typically exhibit a predictable "after-effect." A critical question is whether this adaptive characteristic is preserved following stroke so that it might be exploited for restoring function. Another important question is whether subjects benefit more from training forces that enhance their errors than from forces that reduce their errors. We exposed hemiparetic stroke survivors and healthy age-matched controls to a pattern of disturbing forces that have been found by previous studies to induce a dramatic adaptation in healthy individuals. Eighteen stroke survivors made 834 movements in the presence of a robot-generated force field that pushed their hands proportional to its speed and perpendicular to its direction of motion - either clockwise or counterclockwise. We found that subjects could adapt, as evidenced by significant after-effects. After-effects were not correlated with the clinical scores that we used for measuring motor impairment. Further examination revealed that significant improvements occurred only when the training forces magnified the original errors, and not when the training forces reduced the errors or were zero. Within this constrained experimental task we found that error-enhancing therapy (as opposed to guiding the limb closer to the correct path) to be more effective than therapy that assisted the subject.
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Patton</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Physical Medicine & Rehabilitation, Mechanical and Biomedical Engineering, Northwestern University, 345 East Superior St., Room 1406</s1><s2>Chicago, IL 60611</s2><s3>USA</s3><sZ>1 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Stoykov, Mary Ellen" sort="Stoykov, Mary Ellen" uniqKey="Stoykov M" first="Mary Ellen" last="Stoykov">Mary Ellen Stoykov</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Occupational Therapy, University of Illinois at Chicago</s1><s2>Chicago, IL</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Kovic, Mark" sort="Kovic, Mark" uniqKey="Kovic M" first="Mark" last="Kovic">Mark Kovic</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Occupational Therapy, University of Illinois at Chicago</s1><s2>Chicago, IL</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Mussa Ivaldi, Ferdinando A" sort="Mussa Ivaldi, Ferdinando A" uniqKey="Mussa Ivaldi F" first="Ferdinando A." last="Mussa-Ivaldi">Ferdinando A. Mussa-Ivaldi</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Physiology, Physical Medicine & Rehabilitation, Institute for Neuroscience, Mechanical and Biomedical Engineering, Northwestern University</s1><s2>Chicago, IL</s2><s3>USA</s3><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">06-0335296</idno><date when="2006">2006</date><idno type="stanalyst">PASCAL 06-0335296 INIST</idno><idno type="RBID">Pascal:06-0335296</idno><idno type="wicri:Area/PascalFrancis/Corpus">000C88</idno><idno type="wicri:Area/PascalFrancis/Curation">000818</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000A06</idno><idno type="wicri:doubleKey">0014-4819:2006:Patton J:evaluation:of:robotic</idno><idno type="wicri:Area/Main/Merge">006363</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Evaluation of robotic training forces that either enhance or reduce error in chronic hemiparetic stroke survivors</title><author><name sortKey="Patton, James L" sort="Patton, James L" uniqKey="Patton J" first="James L." last="Patton">James L. Patton</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Physical Medicine & Rehabilitation, Mechanical and Biomedical Engineering, Northwestern University, 345 East Superior St., Room 1406</s1><s2>Chicago, IL 60611</s2><s3>USA</s3><sZ>1 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Stoykov, Mary Ellen" sort="Stoykov, Mary Ellen" uniqKey="Stoykov M" first="Mary Ellen" last="Stoykov">Mary Ellen Stoykov</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Occupational Therapy, University of Illinois at Chicago</s1><s2>Chicago, IL</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Kovic, Mark" sort="Kovic, Mark" uniqKey="Kovic M" first="Mark" last="Kovic">Mark Kovic</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Occupational Therapy, University of Illinois at Chicago</s1><s2>Chicago, IL</s2><s3>USA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Mussa Ivaldi, Ferdinando A" sort="Mussa Ivaldi, Ferdinando A" uniqKey="Mussa Ivaldi F" first="Ferdinando A." last="Mussa-Ivaldi">Ferdinando A. Mussa-Ivaldi</name><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Physiology, Physical Medicine & Rehabilitation, Institute for Neuroscience, Mechanical and Biomedical Engineering, Northwestern University</s1><s2>Chicago, IL</s2><s3>USA</s3><sZ>4 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno><imprint><date when="2006">2006</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>After effect</term><term>Force</term><term>Hand</term><term>Haptic perception</term><term>Hemiparesis</term><term>Human</term><term>Motor learning</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Force</term><term>Effet consécutif</term><term>Main</term><term>Apprentissage moteur</term><term>Hémiparésie</term><term>Homme</term><term>Perception haptique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This investigation is one in a series of studies that address the possibility of stroke rehabilitation using robotic devices to facilitate "adaptive training." Healthy subjects, after training in the presence of systematically applied forces, typically exhibit a predictable "after-effect." A critical question is whether this adaptive characteristic is preserved following stroke so that it might be exploited for restoring function. Another important question is whether subjects benefit more from training forces that enhance their errors than from forces that reduce their errors. We exposed hemiparetic stroke survivors and healthy age-matched controls to a pattern of disturbing forces that have been found by previous studies to induce a dramatic adaptation in healthy individuals. Eighteen stroke survivors made 834 movements in the presence of a robot-generated force field that pushed their hands proportional to its speed and perpendicular to its direction of motion - either clockwise or counterclockwise. We found that subjects could adapt, as evidenced by significant after-effects. After-effects were not correlated with the clinical scores that we used for measuring motor impairment. Further examination revealed that significant improvements occurred only when the training forces magnified the original errors, and not when the training forces reduced the errors or were zero. Within this constrained experimental task we found that error-enhancing therapy (as opposed to guiding the limb closer to the correct path) to be more effective than therapy that assisted the subject.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Illinois</li></region></list><tree><country name="États-Unis"><region name="Illinois"><name sortKey="Patton, James L" sort="Patton, James L" uniqKey="Patton J" first="James L." last="Patton">James L. Patton</name></region><name sortKey="Kovic, Mark" sort="Kovic, Mark" uniqKey="Kovic M" first="Mark" last="Kovic">Mark Kovic</name><name sortKey="Mussa Ivaldi, Ferdinando A" sort="Mussa Ivaldi, Ferdinando A" uniqKey="Mussa Ivaldi F" first="Ferdinando A." last="Mussa-Ivaldi">Ferdinando A. Mussa-Ivaldi</name><name sortKey="Stoykov, Mary Ellen" sort="Stoykov, Mary Ellen" uniqKey="Stoykov M" first="Mary Ellen" last="Stoykov">Mary Ellen Stoykov</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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