Effect of a brief episode of experimental muscle pain on jaw movement and jaw-muscle activity during chewing

2016 ◽  
Vol 125 (1) ◽  
pp. 34-43
Author(s):  
Kyoko Inamoto ◽  
Greg M. Murray ◽  
Terry Whittle
Keyword(s):  
Muscle Activity ◽  
Muscle Pain ◽  
Jaw Movement ◽  
Experimental Muscle Pain ◽  
Jaw Muscle

Effects of muscle fatigue induced by low-level clenching on experimental muscle pain and resting jaw muscle activity: gender differences

2006 ◽  
Vol 174 (3) ◽  
pp. 566-574 ◽  
Author(s):  
Tetsurou Torisu ◽  
Kelun Wang ◽  
Peter Svensson ◽  
Antoon De Laat ◽  
Hiroyuki Fujii ◽  
...  
Keyword(s):  
Gender Differences ◽  
Muscle Fatigue ◽  
Muscle Activity ◽  
Muscle Pain ◽  
Low Level ◽  
Experimental Muscle Pain ◽  
Jaw Muscle

Experimental muscle pain modulates muscle activity and work performance differently during high and low precision use of a computer mouse

2000 ◽  
Vol 83 (6) ◽  
pp. 492-498 ◽  
Author(s):  
Laila Birch ◽  
Thomas Graven-Nielsen ◽  
Hanne Christensen ◽  
Lars Arendt-Nielsen
Keyword(s):  
Muscle Activity ◽  
Muscle Pain ◽  
Work Performance ◽  
Experimental Muscle Pain ◽  
Computer Mouse

Experimental muscle pain increases trapezius muscle activity during sustained isometric contractions of arm muscles

2004 ◽  
Vol 115 (8) ◽  
pp. 1767-1778 ◽  
Author(s):  
E Schulte ◽  
A Ciubotariu ◽  
L Arendt-Nielsen ◽  
C Disselhorst-Klug ◽  
G Rau ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Muscle Pain ◽  
Trapezius Muscle ◽  
Isometric Contractions ◽  
Experimental Muscle Pain ◽  
Arm Muscles

A method for studying jaw muscle activity during standardized jaw movements under experimental jaw muscle pain

2006 ◽  
Vol 157 (2) ◽  
pp. 285-293 ◽  
Author(s):  
Daraporn Sae-Lee ◽  
Kamal Wanigaratne ◽  
Terry Whittle ◽  
Christopher C. Peck ◽  
Greg M. Murray
Keyword(s):  
Muscle Activity ◽  
Muscle Pain ◽  
Jaw Movements ◽  
Jaw Muscle

Sex-Related Differences in Human Pain and Rat Afferent Discharge Evoked by Injection of Glutamate Into the Masseter Muscle

2001 ◽  
Vol 86 (2) ◽  
pp. 782-791 ◽  
Author(s):  
Brian E. Cairns ◽  
James W. Hu ◽  
Lars Arendt-Nielsen ◽  
Barry J. Sessle ◽  
Peter Svensson
Keyword(s):  
Muscle Activity ◽  
Muscle Pain ◽  
Masseter Muscle ◽  
Isotonic Saline ◽  
Muscle Afferents ◽  
Female Rats ◽  
Male Rats ◽  
Male And Female ◽  
Jaw Muscle ◽  
Nociceptive Afferents

Animal studies have suggested that tissue injury–related increased levels of glutamate may be involved in peripheral nociceptive mechanisms in deep craniofacial tissues. Indeed, injection of glutamate (0.1–1 M, 10 μl) into the temporomandibular region evokes reflex jaw muscle responses through activation of peripheral excitatory amino acid receptors. It has recently been found that this glutamate-evoked reflex muscle activity is significantly greater in female than male rats. However, it is not known whether peripheral administration of glutamate, in the same concentrations that evoke jaw muscle activity in rats, causes pain in humans or activates deep craniofacial nociceptive afferents. Therefore we examined whether injection of glutamate into the masseter muscle induces pain in male and female volunteers and, since masseter afferent recordings were not feasible in humans, whether glutamate excites putative nociceptive afferents supplying the masseter muscle of male and female rats. Injection of glutamate (0.5 M or 1.0 M, 0.2 ml) into the masseter muscle of both men and women caused significantly higher levels of peak pain, duration of pain, and overall pain than injection of isotonic saline (0.2 ml). In addition, glutamate-evoked peak and overall muscle pain in women was significantly greater than in men. In rats of both sexes, glutamate (10 μl, 0.5 M) evoked activity in a subpopulation of masseter muscle afferents ( n = 36) that projected to the subnucleus caudalis, an important relay of noxious input from the craniofacial region. The largest responses to glutamate were recorded in muscle afferents with the slowest conduction velocities (2.5–5 m/s). Further, glutamate-evoked masseter muscle afferent activity was significantly greater in female than in male rats. These results indicate that glutamate injection into the masseter muscle evokes pain responses that are greater in women than men and that one possible mechanism for this difference may be a greater sensitivity to glutamate of masseter muscle afferents in females. These sex-related differences in acute experimental masseter muscle pain are particularly interesting given the higher prevalence of many chronic muscle pain conditions in women.

Experimental Jaw Muscle Pain Increases Pain Scores and Jaw Movement Variability in Higher Pain Catastrophizers

2014 ◽  
Vol 28 (3) ◽  
pp. 191-204 ◽  
Author(s):  
Rahena Akhter ◽  
Janet Benson ◽  
Peter Svensson ◽  
Michael K. Nicholas ◽  
Christopher C. Peck ◽  
...  
Keyword(s):  
Muscle Pain ◽  
Movement Variability ◽  
Jaw Movement ◽  
Pain Scores ◽  
Jaw Muscle

Experimental muscle pain changes the spatial distribution of upper trapezius muscle activity during sustained contraction

2006 ◽  
Vol 117 (11) ◽  
pp. 2436-2445 ◽  
Author(s):  
Pascal Madeleine ◽  
Fredéric Leclerc ◽  
Lars Arendt-Nielsen ◽  
Philippe Ravier ◽  
Dario Farina
Keyword(s):  
Spatial Distribution ◽  
Muscle Activity ◽  
Muscle Pain ◽  
Trapezius Muscle ◽  
Sustained Contraction ◽  
Upper Trapezius ◽  
Experimental Muscle Pain ◽  
Upper Trapezius Muscle

Effects of experimental muscle pain on shoulder-abduction force steadiness and muscle activity in healthy subjects

2007 ◽  
Vol 102 (6) ◽  
pp. 643-650 ◽  
Author(s):  
Thomas Bandholm ◽  
Lars Rasmussen ◽  
Per Aagaard ◽  
Louise Diederichsen ◽  
Bente Rona Jensen
Keyword(s):  
Muscle Activity ◽  
Muscle Pain ◽  
Healthy Subjects ◽  
Shoulder Abduction ◽  
Force Steadiness ◽  
Experimental Muscle Pain
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