Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Effects of local and remote muscle pain on human jaw reflexes evoked by fast stretches at different clenching levels
Autore:
Svensson, P; Macaluso, GM; De Laat, A; Wang, KL;
Indirizzi:
Univ Aalborg, Ctr Sensory Motor Interact, Orofacial Pain Lab, DK-9220 Aalborg E, Denmark Univ Aalborg Aalborg Denmark E cial Pain Lab, DK-9220 Aalborg E, Denmark Univ Aarhus, Royal Dent Coll, Dept Prosthet Dent & Stomatognath Physiol, DK-8000 Aarhus, Denmark Univ Aarhus Aarhus Denmark DK-8000 nath Physiol, DK-8000 Aarhus, Denmark Aalborg Hosp, Dept Oral & Maxillofacial Surg, DK-9100 Aalborg, Denmark Aalborg Hosp Aalborg Denmark DK-9100 cial Surg, DK-9100 Aalborg, Denmark Univ Parma, Ist Clin Odontoiatr, I-43100 Parma, Italy Univ Parma Parma Italy I-43100 Ist Clin Odontoiatr, I-43100 Parma, Italy Catholic Univ Louvain, Dept Oral & Maxillofacial Surg, Cluster Oral Physiol, B-3000 Louvain, Belgium Catholic Univ Louvain Louvain Belgium B-3000 ol, B-3000 Louvain, Belgium
Titolo Testata:
EXPERIMENTAL BRAIN RESEARCH
fascicolo: 4, volume: 139, anno: 2001,
pagine: 495 - 502
SICI:
0014-4819(200108)139:4<495:EOLARM>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN TEMPORALIS MUSCLE; CLOSING MUSCLES; ELECTROMYOGRAPHIC HETEROGENEITY; NOXIOUS-STIMULATION; MASSETER MUSCLES; SHORT-LATENCY; MODULATION; JERK; EXCITABILITY; SUPPRESSION;
Keywords:
muscle pain; trigeminal physiology; jaw reflexes; human;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Svensson, P Univ Aalborg, Ctr Sensory Motor Interact, Orofacial Pain Lab, Fredrik Bajers Vej 7D-3, DK-9220 Aalborg E, Denmark Univ Aalborg Fredrik Bajers Vej 7D-3 Aalborg Denmark E enmark
Citazione:
P. Svensson et al., "Effects of local and remote muscle pain on human jaw reflexes evoked by fast stretches at different clenching levels", EXP BRAIN R, 139(4), 2001, pp. 495-502

Abstract

Muscle pain imposes significant changes on natural motor tasks, but the consequences for stretch reflexes are still disputed. The present study examined the jaw reflexes to fast (10 ms) stretches of the mandible in an experimental model with local pain in the masseter muscle and remote pain in the tibialis anterior muscle. The stretch reflexes were elicited in healthy volunteers (n = 13) before, during, and after periods with constant levels of experimental pain and while the subjects clenched at 0%, 15%, 30%, and 45% of the maximal voluntary contraction (MVC) levels. Surface electromyography(EMG) was used to record the reflex responses. Pain in the masseter muscle(mean SEM, 3.8 +/- 0.4 on a 10-cm visual analogue scale), but not in the tibialis anterior muscle (3.4 +/- 0.3; paired t-test, P = 0.318) was associated with significant changes in both prestimulus EMG activity (ANOVA, P = 0.002) and in peak-to-peak amplitudes of the stretch reflex (ANOVA, P = 0.022). However, when the changes in prestimulus EMG activity were taken into consideration a significant increase in the stretch reflex persisted in the painful muscle at 15% and 30% MVC. Local circuits at the trigeminal level involving the fusimotor system are proposed to mediate a significant part ofthis modulatory effect.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/21 alle ore 02:35:11