Reference values of motor unit action potentials obtained with multi‐MUAP analysis
Identifieur interne : 000540 ( Main/Exploration ); précédent : 000539; suivant : 000541Reference values of motor unit action potentials obtained with multi‐MUAP analysis
Auteurs : Christian Bischoff [Suède, Allemagne] ; Erik St Lberg [Suède] ; Björn Falck [Suède] ; Karin Edebol Eeg-Olofsson [Suède]Source :
- Muscle & Nerve [ 0148-639X ] ; 1994-08.
English descriptors
- Teeft :
- Acta physiol scand, Amplitude, Amplitude values, Anterior tibial, Anterior tibial muscle, Anterior tibial muscles, Brachial, Brachial biceps, Brachial biceps muscle, Clinical neurophysiology, Concentric, Concentric needle electrode, Decomposition technique, Deltoid, Deltoid muscle, Different ages, Different examiners, Different laboratories, Different muscles, Dorsal, Duration, Duration markers, Duration values, Electroencephalogr clin neurophysiol, Expert systems, First dorsal interosseous, First dorsal interosseous muscle, Healthy subjects, Higher contraction level, Identical potentials, Individual motor unit potentials, Interexaminer variability, Interosseous, John wiley, Lateral, Lateral vastus, Lateral vastus muscles, Lowess method, Main difference, Main goal, Manual analysis, Many muscles, Moderate contraction levels, Motor unit, Motor unit action potentials, Motor unit recruitment, Motor units, Muap, Muap amplitude, Muap duration, Muap parameters, Muap reference values, Muap reference values muscle nerve, Muaps, Multimuap analysis, Muscle fibers, Muscle nerve, Neurol, Neurol neurosurg psychiatry, Neurophysiol, Older subjects, Other parameters, Outlier, Outlier limit, Parameter, Present study, Previous studies, Quantitative analysis, Quantitative muap analysis, Reference population, Reference values, Right deltoid muscle, Same investigator, Short rise time, Side differences, Significant correlation, Significant differences, Single fiber, Size index, Smallest muaps, Spike, Spike duration, Standard deviations, Stilberg, Tibial, Upper limit, Uptake area, Vastus.
Abstract
We collected reference values of motor unit action potentials (MUAPs) from healthy deltoid, brachial biceps, first dorsal interosseous, lateral vastus, and anterior tibial muscles in 105 subjects between 15 and 86 years. The MUAPs were recorded with a concentric needle electrode and extracted with a decomposition method we call multi‐MUAP analysis. The main goal is to identify and extract MUAPs. Also, the firing pattern of the motor units can be followed. No significant changes with age were found for duration, spike duration, thickness, amplitude, area, size index, or number of phases in all muscles studied. We did not find any influence of gender or height. We found higher amplitudes and shorter durations compared with previous studies. This may be due to a higher contraction level that can be used with a decomposition technique. No right‐left side differences were found. The coefficient of variation of the parameters in repeated examinations was small, which implies a good reliability of the measurements. Interexaminer variability of four investigators was not greater than in repeated studies. © 1994 John Wiley & Sons, Inc.
Url:
DOI: 10.1002/mus.880170803
Affiliations:
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Hospital, Uppsala</wicri:regionArea><wicri:noRegion>Uppsala</wicri:noRegion></affiliation></author><author><name sortKey="Falck, Bjorn" sort="Falck, Bjorn" uniqKey="Falck B" first="Björn" last="Falck">Björn Falck</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Clinical Neurophysiology, University Hospital, Uppsala</wicri:regionArea><wicri:noRegion>Uppsala</wicri:noRegion></affiliation></author><author><name sortKey="Eeg Lofsson, Karin Edebol" sort="Eeg Lofsson, Karin Edebol" uniqKey="Eeg Lofsson K" first="Karin Edebol" last="Eeg-Olofsson">Karin Edebol Eeg-Olofsson</name><affiliation wicri:level="1"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Clinical Neurophysiology, University Hospital, Uppsala</wicri:regionArea><wicri:noRegion>Uppsala</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Muscle & Nerve</title><title level="j" type="alt">MUSCLE AND NERVE</title><idno type="ISSN">0148-639X</idno><idno type="eISSN">1097-4598</idno><imprint><biblScope unit="vol">17</biblScope><biblScope unit="issue">8</biblScope><biblScope unit="page" from="842">842</biblScope><biblScope unit="page" to="851">851</biblScope><biblScope unit="page-count">10</biblScope><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="1994-08">1994-08</date></imprint><idno type="ISSN">0148-639X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-639X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Acta physiol scand</term><term>Amplitude</term><term>Amplitude values</term><term>Anterior tibial</term><term>Anterior tibial muscle</term><term>Anterior tibial muscles</term><term>Brachial</term><term>Brachial biceps</term><term>Brachial biceps muscle</term><term>Clinical neurophysiology</term><term>Concentric</term><term>Concentric needle electrode</term><term>Decomposition technique</term><term>Deltoid</term><term>Deltoid muscle</term><term>Different ages</term><term>Different examiners</term><term>Different laboratories</term><term>Different muscles</term><term>Dorsal</term><term>Duration</term><term>Duration markers</term><term>Duration values</term><term>Electroencephalogr clin neurophysiol</term><term>Expert systems</term><term>First dorsal interosseous</term><term>First dorsal interosseous muscle</term><term>Healthy subjects</term><term>Higher contraction level</term><term>Identical potentials</term><term>Individual motor unit potentials</term><term>Interexaminer variability</term><term>Interosseous</term><term>John wiley</term><term>Lateral</term><term>Lateral vastus</term><term>Lateral vastus muscles</term><term>Lowess method</term><term>Main difference</term><term>Main goal</term><term>Manual analysis</term><term>Many muscles</term><term>Moderate contraction levels</term><term>Motor unit</term><term>Motor unit action potentials</term><term>Motor unit recruitment</term><term>Motor units</term><term>Muap</term><term>Muap amplitude</term><term>Muap duration</term><term>Muap parameters</term><term>Muap reference values</term><term>Muap reference values muscle nerve</term><term>Muaps</term><term>Multimuap analysis</term><term>Muscle fibers</term><term>Muscle nerve</term><term>Neurol</term><term>Neurol neurosurg psychiatry</term><term>Neurophysiol</term><term>Older subjects</term><term>Other parameters</term><term>Outlier</term><term>Outlier limit</term><term>Parameter</term><term>Present study</term><term>Previous studies</term><term>Quantitative analysis</term><term>Quantitative muap analysis</term><term>Reference population</term><term>Reference values</term><term>Right deltoid muscle</term><term>Same investigator</term><term>Short rise time</term><term>Side differences</term><term>Significant correlation</term><term>Significant differences</term><term>Single fiber</term><term>Size index</term><term>Smallest muaps</term><term>Spike</term><term>Spike duration</term><term>Standard deviations</term><term>Stilberg</term><term>Tibial</term><term>Upper limit</term><term>Uptake area</term><term>Vastus</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We collected reference values of motor unit action potentials (MUAPs) from healthy deltoid, brachial biceps, first dorsal interosseous, lateral vastus, and anterior tibial muscles in 105 subjects between 15 and 86 years. The MUAPs were recorded with a concentric needle electrode and extracted with a decomposition method we call multi‐MUAP analysis. The main goal is to identify and extract MUAPs. Also, the firing pattern of the motor units can be followed. No significant changes with age were found for duration, spike duration, thickness, amplitude, area, size index, or number of phases in all muscles studied. We did not find any influence of gender or height. We found higher amplitudes and shorter durations compared with previous studies. This may be due to a higher contraction level that can be used with a decomposition technique. No right‐left side differences were found. The coefficient of variation of the parameters in repeated examinations was small, which implies a good reliability of the measurements. Interexaminer variability of four investigators was not greater than in repeated studies. © 1994 John Wiley & Sons, Inc.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Suède</li></country><region><li>Bavière</li><li>District de Haute-Bavière</li></region><settlement><li>Munich</li></settlement></list><tree><country name="Suède"><noRegion><name sortKey="Bischoff, Christian" sort="Bischoff, Christian" uniqKey="Bischoff C" first="Christian" last="Bischoff">Christian Bischoff</name></noRegion><name sortKey="Eeg Lofsson, Karin Edebol" sort="Eeg Lofsson, Karin Edebol" uniqKey="Eeg Lofsson K" first="Karin Edebol" last="Eeg-Olofsson">Karin Edebol Eeg-Olofsson</name><name sortKey="Falck, Bjorn" sort="Falck, Bjorn" uniqKey="Falck B" first="Björn" last="Falck">Björn Falck</name><name sortKey="St Lberg, Erik" sort="St Lberg, Erik" uniqKey="St Lberg E" first="Erik" last="St Lberg">Erik St Lberg</name></country><country name="Allemagne"><region name="Bavière"><name sortKey="Bischoff, Christian" sort="Bischoff, Christian" uniqKey="Bischoff C" first="Christian" last="Bischoff">Christian Bischoff</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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