Motor adaptations to local muscle pain during a bilateral cyclic task.
Identifieur interne : 000778 ( Main/Exploration ); précédent : 000777; suivant : 000779Motor adaptations to local muscle pain during a bilateral cyclic task.
Auteurs : Niels-Peter Br Chner Nielsen [France] ; Kylie Tucker [Australie] ; Sylvain Dorel [France] ; Arnaud Guével [France] ; François Hug [France]Source :
- Experimental brain research [ 1432-1106 ] ; 2017.
Descripteurs français
- KwdFr :
- Activité motrice (physiologie), Adaptation physiologique (physiologie), Adolescent, Adulte, Analyse de variance, Contraction musculaire (physiologie), Cyclisme, Femelle, Humains, Jeune adulte, Latéralité fonctionnelle (physiologie), Mesure de la douleur, Muscles squelettiques (physiologie), Myalgie (étiologie), Mâle, Électromyographie.
- MESH :
- physiologie : Activité motrice, Adaptation physiologique, Contraction musculaire, Latéralité fonctionnelle, Muscles squelettiques.
- étiologie : Myalgie.
- Adolescent, Adulte, Analyse de variance, Cyclisme, Femelle, Humains, Jeune adulte, Mesure de la douleur, Mâle, Électromyographie.
English descriptors
- KwdEn :
- Adaptation, Physiological (physiology), Adolescent, Adult, Analysis of Variance, Bicycling, Electromyography, Female, Functional Laterality (physiology), Humans, Male, Motor Activity (physiology), Muscle Contraction (physiology), Muscle, Skeletal (physiology), Myalgia (etiology), Pain Measurement, Young Adult.
- MESH :
- etiology : Myalgia.
- physiology : Adaptation, Physiological, Functional Laterality, Motor Activity, Muscle Contraction, Muscle, Skeletal.
- Adolescent, Adult, Analysis of Variance, Bicycling, Electromyography, Female, Humans, Male, Pain Measurement, Young Adult.
Abstract
The aim of this study was to determine how unilateral pain, induced in two knee extensor muscles, affects muscle coordination during a bilateral pedaling task. Fifteen participants performed a 4-min pedaling task at 130 W in two conditions (Baseline and Pain). Pain was induced by injection of hypertonic saline into the vastus medialis (VM) and vastus lateralis (VL) muscles of one leg. Force applied throughout the pedaling cycle was measured using an instrumented pedal and used to calculate pedal power. Surface electromyography (EMG) was recorded bilaterally from eight muscles to assess changes in muscle activation strategies. Compared to Baseline, during the Pain condition, EMG amplitude of muscles of the painful leg (VL and VM-the painful muscles, and RF-another quadriceps muscle with no pain) was lower during the extension phase [(mean ± SD): VL: -22.5 ± 18.9%; P < 0.001; VM: -28.8 ± 19.9%; P < 0.001, RF: -20.2 ± 13.9%; P < 0.001]. Consistent with this, pedal power applied by the painful leg was also lower during the extension phase (-16.8 ± 14.2 W, P = 0.001) during Pain compared to Baseline. This decrease was compensated for by an 11.3 ± 8.1 W increase in pedal power applied by the non-painful leg during its extension phase (P = 0.04). These results support pain adaptation theories, which suggest that when there is a clear opportunity to compensate, motor adaptations to pain occur to decrease load within the painful tissue. Although the pedaling task offered numerous possibilities for compensation, only between-leg compensations were systematically observed. This finding is discussed in relation to the mechanical and neural constraints of the pedaling task.
DOI: 10.1007/s00221-016-4826-y
PubMed: 27838731
Affiliations:
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Contraction (physiology)</term><term>Muscle, Skeletal (physiology)</term><term>Myalgia (etiology)</term><term>Pain Measurement</term><term>Young Adult</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Activité motrice (physiologie)</term><term>Adaptation physiologique (physiologie)</term><term>Adolescent</term><term>Adulte</term><term>Analyse de variance</term><term>Contraction musculaire (physiologie)</term><term>Cyclisme</term><term>Femelle</term><term>Humains</term><term>Jeune adulte</term><term>Latéralité fonctionnelle (physiologie)</term><term>Mesure de la douleur</term><term>Muscles squelettiques (physiologie)</term><term>Myalgie (étiologie)</term><term>Mâle</term><term>Électromyographie</term></keywords><keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Myalgia</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Activité motrice</term><term>Adaptation physiologique</term><term>Contraction 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douleur</term><term>Mâle</term><term>Électromyographie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The aim of this study was to determine how unilateral pain, induced in two knee extensor muscles, affects muscle coordination during a bilateral pedaling task. Fifteen participants performed a 4-min pedaling task at 130 W in two conditions (Baseline and Pain). Pain was induced by injection of hypertonic saline into the vastus medialis (VM) and vastus lateralis (VL) muscles of one leg. Force applied throughout the pedaling cycle was measured using an instrumented pedal and used to calculate pedal power. Surface electromyography (EMG) was recorded bilaterally from eight muscles to assess changes in muscle activation strategies. Compared to Baseline, during the Pain condition, EMG amplitude of muscles of the painful leg (VL and VM-the painful muscles, and RF-another quadriceps muscle with no pain) was lower during the extension phase [(mean ± SD): VL: -22.5 ± 18.9%; P < 0.001; VM: -28.8 ± 19.9%; P < 0.001, RF: -20.2 ± 13.9%; P < 0.001]. Consistent with this, pedal power applied by the painful leg was also lower during the extension phase (-16.8 ± 14.2 W, P = 0.001) during Pain compared to Baseline. This decrease was compensated for by an 11.3 ± 8.1 W increase in pedal power applied by the non-painful leg during its extension phase (P = 0.04). These results support pain adaptation theories, which suggest that when there is a clear opportunity to compensate, motor adaptations to pain occur to decrease load within the painful tissue. Although the pedaling task offered numerous possibilities for compensation, only between-leg compensations were systematically observed. This finding is discussed in relation to the mechanical and neural constraints of the pedaling task.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Pays de la Loire</li></region><settlement><li>Nantes</li></settlement></list><tree><country name="France"><region name="Pays de la Loire"><name sortKey="Br Chner Nielsen, Niels Peter" sort="Br Chner Nielsen, Niels Peter" uniqKey="Br Chner Nielsen N" first="Niels-Peter" last="Br Chner Nielsen">Niels-Peter Br Chner Nielsen</name></region><name sortKey="Dorel, Sylvain" sort="Dorel, Sylvain" uniqKey="Dorel S" first="Sylvain" last="Dorel">Sylvain Dorel</name><name sortKey="Guevel, Arnaud" sort="Guevel, Arnaud" uniqKey="Guevel A" first="Arnaud" last="Guével">Arnaud Guével</name><name sortKey="Hug, Francois" sort="Hug, Francois" uniqKey="Hug F" first="François" last="Hug">François Hug</name></country><country name="Australie"><noRegion><name sortKey="Tucker, Kylie" sort="Tucker, Kylie" uniqKey="Tucker K" first="Kylie" last="Tucker">Kylie Tucker</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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