Spinally generated electromyographic oscillations and spasms in a low‐thoracic complete paraplegic
Identifieur interne : 003F30 ( Main/Exploration ); précédent : 003F29; suivant : 003F31Spinally generated electromyographic oscillations and spasms in a low‐thoracic complete paraplegic
Auteurs : Jonathan A. Norton [Royaume-Uni] ; Duncan E. Wood [Royaume-Uni] ; Jonathan F. Marsden [Royaume-Uni] ; Brian L. Day [Royaume-Uni]Source :
- Movement Disorders [ 0885-3185 ] ; 2003-01.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Adulte.
English descriptors
- KwdEn :
- Adult, Biological Clocks (physiology), Case study, Complication, Dorsal spine, Electric Stimulation, Electromyography, Exploration, Humans, Leg (innervation), Male, Medullary paraplegia, Motor Neurons (physiology), Muscle, Skeletal (innervation), Oscillation, Paraplegia (diagnosis), Paraplegia (physiopathology), Signal Processing, Computer-Assisted, Spasm, Spasm (diagnosis), Spasm (physiopathology), Synaptic Transmission (physiology), Weight-Bearing (physiology), paraplegia, spasms, spinal oscillations.
- MESH :
- diagnosis : Paraplegia, Spasm.
- innervation : Leg, Muscle, Skeletal.
- physiology : Biological Clocks, Motor Neurons, Synaptic Transmission, Weight-Bearing.
- physiopathology : Paraplegia, Spasm.
- Adult, Electric Stimulation, Humans, Male, Signal Processing, Computer-Assisted.
Abstract
We have measured some oscillatory properties of severe lower limb spasms experienced by a low‐thoracic complete paraplegic during assisted standing. Electromyograms (EMG) were recorded from the leg muscles while the patient stood passively in a standing frame. The patient also stood using functional electrical stimulation (FES) while ground and handle reaction force vectors were measured together with EMG activity. During passive standing, spasms appeared simultaneously in all leg muscle groups on one side. The interval between spasms varied between 3 and 30 seconds. Within the spasms, there was a tendency of repetitive grouped discharge of motor units as well as a strong 10‐Hz component in the EMG that was coherent across ipsilateral muscle groups. Thus, the spasms were inherently oscillatory. During FES‐assisted standing, clinically similar spasms were observed. However, the interspasm interval became relatively fixed at around 16 seconds, which may indicate entraining of the spasm cycle by FES. There are similarities between this patient's spasms and the pathological motor activities seen in other movement disorders that may also be of spinal origin.
Url:
DOI: 10.1002/mds.10298
Affiliations:
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Le document en format XML
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Wood</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Medical Physics and Biomedical Engineering, Salisbury District Hospital, Salisbury, Wilts</wicri:regionArea><wicri:noRegion>Wilts</wicri:noRegion></affiliation></author><author><name sortKey="Marsden, Jonathan F" sort="Marsden, Jonathan F" uniqKey="Marsden J" first="Jonathan F." last="Marsden">Jonathan F. Marsden</name><affiliation wicri:level="3"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>MRC Human Movement Group, Sobell Department for Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Day, Brian L" sort="Day, Brian L" uniqKey="Day B" first="Brian L." last="Day">Brian L. Day</name><affiliation wicri:level="3"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>MRC Human Movement Group, Sobell Department for Motor Neuroscience and Movement Disorders, Institute of Neurology, University College London, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Movement Disorders</title><title level="j" type="sub">Official Journal of the Movement Disorder Society</title><title level="j" type="abbrev">Mov. 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="2003-01">2003-01</date><biblScope unit="vol">18</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="101">101</biblScope><biblScope unit="page" to="106">106</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">7F63DC5B7C385D005EC421A75894B3338699EA07</idno><idno type="DOI">10.1002/mds.10298</idno><idno type="ArticleID">MDS10298</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Biological Clocks (physiology)</term><term>Case study</term><term>Complication</term><term>Dorsal spine</term><term>Electric Stimulation</term><term>Electromyography</term><term>Exploration</term><term>Humans</term><term>Leg (innervation)</term><term>Male</term><term>Medullary paraplegia</term><term>Motor Neurons (physiology)</term><term>Muscle, Skeletal (innervation)</term><term>Oscillation</term><term>Paraplegia (diagnosis)</term><term>Paraplegia (physiopathology)</term><term>Signal Processing, Computer-Assisted</term><term>Spasm</term><term>Spasm (diagnosis)</term><term>Spasm (physiopathology)</term><term>Synaptic Transmission (physiology)</term><term>Weight-Bearing (physiology)</term><term>paraplegia</term><term>spasms</term><term>spinal oscillations</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Paraplegia</term><term>Spasm</term></keywords><keywords scheme="MESH" qualifier="innervation" xml:lang="en"><term>Leg</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Biological Clocks</term><term>Motor Neurons</term><term>Synaptic Transmission</term><term>Weight-Bearing</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Paraplegia</term><term>Spasm</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Electric Stimulation</term><term>Humans</term><term>Male</term><term>Signal Processing, Computer-Assisted</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Adulte</term><term>Complication</term><term>Electromyographie</term><term>Etude cas</term><term>Exploration</term><term>Mâle</term><term>Oscillation</term><term>Paraplégie médullaire</term><term>Rachis dorsal</term><term>Spasme</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Adulte</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We have measured some oscillatory properties of severe lower limb spasms experienced by a low‐thoracic complete paraplegic during assisted standing. Electromyograms (EMG) were recorded from the leg muscles while the patient stood passively in a standing frame. The patient also stood using functional electrical stimulation (FES) while ground and handle reaction force vectors were measured together with EMG activity. During passive standing, spasms appeared simultaneously in all leg muscle groups on one side. The interval between spasms varied between 3 and 30 seconds. Within the spasms, there was a tendency of repetitive grouped discharge of motor units as well as a strong 10‐Hz component in the EMG that was coherent across ipsilateral muscle groups. Thus, the spasms were inherently oscillatory. During FES‐assisted standing, clinically similar spasms were observed. However, the interspasm interval became relatively fixed at around 16 seconds, which may indicate entraining of the spasm cycle by FES. There are similarities between this patient's spasms and the pathological motor activities seen in other movement disorders that may also be of spinal origin.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Londres</li></region><settlement><li>Londres</li></settlement></list><tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Norton, Jonathan A" sort="Norton, Jonathan A" uniqKey="Norton J" first="Jonathan A." last="Norton">Jonathan A. Norton</name></region><name sortKey="Day, Brian L" sort="Day, Brian L" uniqKey="Day B" first="Brian L." last="Day">Brian L. Day</name><name sortKey="Marsden, Jonathan F" sort="Marsden, Jonathan F" uniqKey="Marsden J" first="Jonathan F." last="Marsden">Jonathan F. Marsden</name><name sortKey="Norton, Jonathan A" sort="Norton, Jonathan A" uniqKey="Norton J" first="Jonathan A." last="Norton">Jonathan A. Norton</name><name sortKey="Wood, Duncan E" sort="Wood, Duncan E" uniqKey="Wood D" first="Duncan E." last="Wood">Duncan E. Wood</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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