High vs. Low Frequency Stimulation Effects on Fine Motor Control in Chronic Hemiplegia: A Pilot Study
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Auteurs : Barbara M. Doucet ; Lisa Griffin [États-Unis]Source :
- Topics in stroke rehabilitation [ 1074-9357 ] ; 2013.
Abstract
The optimal parameters of neuromuscular electrical stimulation (NMES) for recovery of hand function following stroke are not known. This clinical pilot study examined whether higher or lower frequencies are more effective for improving fine motor control of the hand in a chronic post-stroke population.
A one-month, 4x/week in-home regimen of either a high frequency (40Hz) or low frequency (20Hz) NMES program was applied to the hemiplegic thenar muscles of 16 persons with chronic stroke. Participants were identified a priori as having a low level of function (LF) or a high level of function (HF). Outcome measures of strength, dexterity, and endurance were measured before and after participation in the regimen.
LF subjects showed no significant changes with either the high or the low frequency NMES regimen. HF subjects showed significant changes in strength, dexterity and endurance. Within this group, higher frequencies of stimulation yielded strength gains and increased motor activation; lower frequencies impacted dexterity and endurance.
The results suggest that higher frequencies of stimulation could be more effective in improving strength and motor activation properties and that lower frequencies may impact coordination and endurance changes; results also indicate that persons with a higher functional level of recovery may respond more favorably to NMES regimens, but further study with larger patient groups is warranted.
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DOI: 10.1310/tsr2004-299
PubMed: 23893829
PubMed Central: 4167381
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Barbara M. Doucet<affiliation><nlm:aff id="A1">Division of Rehabilitation Sciences, University of Texas Medical Branch at Galveston</nlm:aff><wicri:noCountry code="subfield">University of Texas Medical Branch at Galveston</wicri:noCountry></affiliation>Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">High vs. Low Frequency Stimulation Effects on Fine Motor Control in Chronic Hemiplegia: A Pilot Study</title><author><name sortKey="Doucet, Barbara M" sort="Doucet, Barbara M" uniqKey="Doucet B" first="Barbara M." last="Doucet">Barbara M. Doucet</name><affiliation><nlm:aff id="A1">Division of Rehabilitation Sciences, University of Texas Medical Branch at Galveston</nlm:aff><wicri:noCountry code="subfield">University of Texas Medical Branch at Galveston</wicri:noCountry></affiliation></author><author><name sortKey="Griffin, Lisa" sort="Griffin, Lisa" uniqKey="Griffin L" first="Lisa" last="Griffin">Lisa Griffin</name><affiliation wicri:level="4"><nlm:aff id="A2">Department of Kinesiology and Health Education, University of Texas at Austin</nlm:aff><country>États-Unis</country><placeName><settlement type="city">Austin (Texas)</settlement><region type="state">Texas</region></placeName><orgName type="university">Université du Texas à Austin</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">23893829</idno><idno type="pmc">4167381</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4167381</idno><idno type="RBID">PMC:4167381</idno><idno type="doi">10.1310/tsr2004-299</idno><date when="2013">2013</date><idno type="wicri:Area/Pmc/Corpus">001B14</idno><idno type="wicri:Area/Pmc/Curation">001B14</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">High vs. Low Frequency Stimulation Effects on Fine Motor Control in Chronic Hemiplegia: A Pilot Study</title><author><name sortKey="Doucet, Barbara M" sort="Doucet, Barbara M" uniqKey="Doucet B" first="Barbara M." last="Doucet">Barbara M. Doucet</name><affiliation><nlm:aff id="A1">Division of Rehabilitation Sciences, University of Texas Medical Branch at Galveston</nlm:aff><wicri:noCountry code="subfield">University of Texas Medical Branch at Galveston</wicri:noCountry></affiliation></author><author><name sortKey="Griffin, Lisa" sort="Griffin, Lisa" uniqKey="Griffin L" first="Lisa" last="Griffin">Lisa Griffin</name><affiliation wicri:level="4"><nlm:aff id="A2">Department of Kinesiology and Health Education, University of Texas at Austin</nlm:aff><country>États-Unis</country><placeName><settlement type="city">Austin (Texas)</settlement><region type="state">Texas</region></placeName><orgName type="university">Université du Texas à Austin</orgName></affiliation></author></analytic><series><title level="j">Topics in stroke rehabilitation</title><idno type="ISSN">1074-9357</idno><idno type="eISSN">1945-5119</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="S1"><title>Introduction</title><p id="P1">The optimal parameters of neuromuscular electrical stimulation (NMES) for recovery of hand function following stroke are not known. This clinical pilot study examined whether higher or lower frequencies are more effective for improving fine motor control of the hand in a chronic post-stroke population.</p></sec><sec id="S2"><title>Methods</title><p id="P2">A one-month, 4x/week in-home regimen of either a high frequency (40Hz) or low frequency (20Hz) NMES program was applied to the hemiplegic thenar muscles of 16 persons with chronic stroke. Participants were identified a priori as having a low level of function (LF) or a high level of function (HF). Outcome measures of strength, dexterity, and endurance were measured before and after participation in the regimen.</p></sec><sec id="S3"><title>Results</title><p id="P3">LF subjects showed no significant changes with either the high or the low frequency NMES regimen. HF subjects showed significant changes in strength, dexterity and endurance. Within this group, higher frequencies of stimulation yielded strength gains and increased motor activation; lower frequencies impacted dexterity and endurance.</p></sec><sec id="S4"><title>Conclusions</title><p id="P4">The results suggest that higher frequencies of stimulation could be more effective in improving strength and motor activation properties and that lower frequencies may impact coordination and endurance changes; results also indicate that persons with a higher functional level of recovery may respond more favorably to NMES regimens, but further study with larger patient groups is warranted.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">9439750</journal-id><journal-id journal-id-type="pubmed-jr-id">31670</journal-id><journal-id journal-id-type="nlm-ta">Top Stroke Rehabil</journal-id><journal-id journal-id-type="iso-abbrev">Top Stroke Rehabil</journal-id><journal-title-group><journal-title>Topics in stroke rehabilitation</journal-title></journal-title-group><issn pub-type="ppub">1074-9357</issn><issn pub-type="epub">1945-5119</issn></journal-meta><article-meta><article-id pub-id-type="pmid">23893829</article-id><article-id pub-id-type="pmc">4167381</article-id><article-id pub-id-type="doi">10.1310/tsr2004-299</article-id><article-id pub-id-type="manuscript">NIHMS626280</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>High vs. Low Frequency Stimulation Effects on Fine Motor Control in Chronic Hemiplegia: A Pilot Study</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Doucet</surname><given-names>Barbara M.</given-names></name><degrees>OTR, PhD</degrees><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Griffin</surname><given-names>Lisa</given-names></name><degrees>PhD</degrees><xref ref-type="aff" rid="A2">2</xref></contrib></contrib-group><aff id="A1"><label>1</label>Division of Rehabilitation Sciences, University of Texas Medical Branch at Galveston</aff><aff id="A2"><label>2</label>Department of Kinesiology and Health Education, University of Texas at Austin</aff><author-notes><corresp id="FN1">Corresponding Author: Barbara M. Doucet, PhD, The University of Texas Medical Branch, School of Health Professions, Division of Rehabilitation Sciences, 301 University Blvd., Galveston, TX 77555-1137, Tel: 409.747.1636, Fax: 409.747.1638, <email>bmdoucet@utmb.edu</email></corresp></author-notes><pub-date pub-type="nihms-submitted"><day>7</day><month>9</month><year>2014</year></pub-date><pub-date pub-type="ppub"><season>Jul-Aug</season><year>2013</year></pub-date><pub-date pub-type="pmc-release"><day>17</day><month>9</month><year>2014</year></pub-date><volume>20</volume><issue>4</issue><fpage>299</fpage><lpage>307</lpage><pmc-comment>elocation-id from pubmed: 10.1310/tsr2004-299</pmc-comment>
<abstract><sec id="S1"><title>Introduction</title><p id="P1">The optimal parameters of neuromuscular electrical stimulation (NMES) for recovery of hand function following stroke are not known. This clinical pilot study examined whether higher or lower frequencies are more effective for improving fine motor control of the hand in a chronic post-stroke population.</p></sec><sec id="S2"><title>Methods</title><p id="P2">A one-month, 4x/week in-home regimen of either a high frequency (40Hz) or low frequency (20Hz) NMES program was applied to the hemiplegic thenar muscles of 16 persons with chronic stroke. Participants were identified a priori as having a low level of function (LF) or a high level of function (HF). Outcome measures of strength, dexterity, and endurance were measured before and after participation in the regimen.</p></sec><sec id="S3"><title>Results</title><p id="P3">LF subjects showed no significant changes with either the high or the low frequency NMES regimen. HF subjects showed significant changes in strength, dexterity and endurance. Within this group, higher frequencies of stimulation yielded strength gains and increased motor activation; lower frequencies impacted dexterity and endurance.</p></sec><sec id="S4"><title>Conclusions</title><p id="P4">The results suggest that higher frequencies of stimulation could be more effective in improving strength and motor activation properties and that lower frequencies may impact coordination and endurance changes; results also indicate that persons with a higher functional level of recovery may respond more favorably to NMES regimens, but further study with larger patient groups is warranted.</p></sec></abstract><kwd-group><kwd>cerebrovascular accident (CVA)</kwd><kwd>dexterity</kwd><kwd>hand</kwd><kwd>hemiplegia</kwd><kwd>neuromuscular electrical stimulation</kwd><kwd>rehabilitation</kwd><kwd>stroke</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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