Tremor suppression orthoses for parkinson's patients: a frequency range perspective.
Identifieur interne : 001D54 ( Main/Exploration ); précédent : 001D53; suivant : 001D55Tremor suppression orthoses for parkinson's patients: a frequency range perspective.
Auteurs : Fariborz Rahimi [Canada] ; Quincy J. Almeida ; David Wang ; Farrokh Janabi-SharifiSource :
- Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference [ 1557-170X ] ; 2009.
English descriptors
- KwdEn :
- MESH :
- physiopathology : Elbow, Parkinson Disease.
- prevention & control : Tremor.
- Case-Control Studies, Humans, Pilot Projects.
Abstract
While the majority of tremor-afflicted Parkinso-nian (PD) patients suffer from rest tremors, which is not considered highly disabling, a portion of these PD patients also demonstrate action tremors that interfere with their daily lives. Two main considerations in designing an orthosis that aims at suppressing the tremor, are the frequency bands of the tremor and the joints tremor affects. Nine subjects, which included six healthy people, two PD patients with typical tremor afflictions, and a PD patient with severe tremor of not only in her fingers and wrist, but also in her elbow, participated in this study. The highly afflicted patient displayed the need for tremor suppression in action as well as when in rest. The study focuses on uncommon elbow tremors and demonstrates that, for typically afflicted patients, tremor amplitudes are comparable to healthy subjects, but the frequency distribution of the tremors are different at high levels of elbow torque. For the highly afflicted patient, both tremor amplitude and its frequency distribution are different at all levels of elbow torque. The study further investigates the tremors in two bands of frequency on both hands of the highly troubled patient before, and after medication. The two bands are those of classical Parkinsonian tremor (4-6 Hz) and physiological (or enhanced physiological) tremor (8-12 Hz). Power spectrum and tremor amplitude comparisons reveal that, for part of tremulous PD patients, both tremors coexist and, depending on the level of affliction, the designed orthosis needs to suppress tremors in both bands, even at more proximal joints, such as the elbow.
DOI: 10.1109/IEMBS.2009.5332392
PubMed: 19963511
Affiliations:
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Almeida</name></author><author><name sortKey="Wang, David" sort="Wang, David" uniqKey="Wang D" first="David" last="Wang">David Wang</name></author><author><name sortKey="Janabi Sharifi, Farrokh" sort="Janabi Sharifi, Farrokh" uniqKey="Janabi Sharifi F" first="Farrokh" last="Janabi-Sharifi">Farrokh Janabi-Sharifi</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2009">2009</date><idno type="RBID">pubmed:19963511</idno><idno type="pmid">19963511</idno><idno type="doi">10.1109/IEMBS.2009.5332392</idno><idno type="wicri:Area/PubMed/Corpus">000F14</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000F14</idno><idno type="wicri:Area/PubMed/Curation">000F14</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000F14</idno><idno type="wicri:Area/PubMed/Checkpoint">000F14</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000F14</idno><idno type="wicri:Area/Ncbi/Merge">000B83</idno><idno type="wicri:Area/Ncbi/Curation">000B83</idno><idno type="wicri:Area/Ncbi/Checkpoint">000B83</idno><idno type="wicri:doubleKey">1557-170X:2009:Rahimi F:tremor:suppression:orthoses</idno><idno type="wicri:Area/Main/Merge">001F00</idno><idno type="wicri:Area/Main/Curation">001D54</idno><idno type="wicri:Area/Main/Exploration">001D54</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Tremor suppression orthoses for parkinson's patients: a frequency range perspective.</title><author><name sortKey="Rahimi, Fariborz" sort="Rahimi, Fariborz" uniqKey="Rahimi F" first="Fariborz" last="Rahimi">Fariborz Rahimi</name><affiliation wicri:level="1"><nlm:affiliation>Department of Electrical Engineering, University of Waterloo, Waterloo, ON, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Electrical Engineering, University of Waterloo, Waterloo, ON</wicri:regionArea><wicri:noRegion>ON</wicri:noRegion></affiliation></author><author><name sortKey="Almeida, Quincy J" sort="Almeida, Quincy J" uniqKey="Almeida Q" first="Quincy J" last="Almeida">Quincy J. Almeida</name></author><author><name sortKey="Wang, David" sort="Wang, David" uniqKey="Wang D" first="David" last="Wang">David Wang</name></author><author><name sortKey="Janabi Sharifi, Farrokh" sort="Janabi Sharifi, Farrokh" uniqKey="Janabi Sharifi F" first="Farrokh" last="Janabi-Sharifi">Farrokh Janabi-Sharifi</name></author></analytic><series><title level="j">Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference</title><idno type="ISSN">1557-170X</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Case-Control Studies</term><term>Elbow (physiopathology)</term><term>Humans</term><term>Parkinson Disease (physiopathology)</term><term>Pilot Projects</term><term>Tremor (prevention & control)</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Elbow</term><term>Parkinson Disease</term></keywords><keywords scheme="MESH" qualifier="prevention & control" xml:lang="en"><term>Tremor</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Case-Control Studies</term><term>Humans</term><term>Pilot Projects</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">While the majority of tremor-afflicted Parkinso-nian (PD) patients suffer from rest tremors, which is not considered highly disabling, a portion of these PD patients also demonstrate action tremors that interfere with their daily lives. Two main considerations in designing an orthosis that aims at suppressing the tremor, are the frequency bands of the tremor and the joints tremor affects. Nine subjects, which included six healthy people, two PD patients with typical tremor afflictions, and a PD patient with severe tremor of not only in her fingers and wrist, but also in her elbow, participated in this study. The highly afflicted patient displayed the need for tremor suppression in action as well as when in rest. The study focuses on uncommon elbow tremors and demonstrates that, for typically afflicted patients, tremor amplitudes are comparable to healthy subjects, but the frequency distribution of the tremors are different at high levels of elbow torque. For the highly afflicted patient, both tremor amplitude and its frequency distribution are different at all levels of elbow torque. The study further investigates the tremors in two bands of frequency on both hands of the highly troubled patient before, and after medication. The two bands are those of classical Parkinsonian tremor (4-6 Hz) and physiological (or enhanced physiological) tremor (8-12 Hz). Power spectrum and tremor amplitude comparisons reveal that, for part of tremulous PD patients, both tremors coexist and, depending on the level of affliction, the designed orthosis needs to suppress tremors in both bands, even at more proximal joints, such as the elbow.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Almeida, Quincy J" sort="Almeida, Quincy J" uniqKey="Almeida Q" first="Quincy J" last="Almeida">Quincy J. Almeida</name><name sortKey="Janabi Sharifi, Farrokh" sort="Janabi Sharifi, Farrokh" uniqKey="Janabi Sharifi F" first="Farrokh" last="Janabi-Sharifi">Farrokh Janabi-Sharifi</name><name sortKey="Wang, David" sort="Wang, David" uniqKey="Wang D" first="David" last="Wang">David Wang</name></noCountry><country name="Canada"><noRegion><name sortKey="Rahimi, Fariborz" sort="Rahimi, Fariborz" uniqKey="Rahimi F" first="Fariborz" last="Rahimi">Fariborz Rahimi</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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