Role of Auriculotherapy in the Treatment of Temporomandibular Disorders with Anxiety in University Students

Introduction. The aim of this study was to evaluate the role of auriculotherapy with mustard seeds in the treatment of temporomandibular disorders (TMDs), anxiety, and electromyographic (EMG) activity in university students.Methodology. The State Trait Anxiety Inventory (STAI), Research Diagnostic Criteria (RDC) for TMDs (RDC/TMDs), and electromyography were used in this study of 44 college students with high levels of anxiety and TMDs. The subjects were divided into two groups: an auriculotherapy (AA) group(n=31)and an AA sham group(n=13). The mustard seeds were applied to the shenmen, rim, sympathetic, brain stem, and temporomandibular joint (TMJ) points in the AA group and to sham points in the external ear and wrist in the AA sham group. The treatment protocol was 10 sessions (two treatments per week).Results. Anxiety(p<0.01)was significantly reduced in the AA group. This group also showed a decrease in tender points in the mandibular posterior region(p=0.04)and in the right side of the submandibular region(p=0.02). Complaints of bilateral pain were reduced in the temporal tendon(p≤0.01)and in the left side of the ATM(p<0.01). In addition, electromyographic (EMG) activity was reduced during temporal muscle contraction(p=0.03). Conclusion. Auriculotherapy was effective in the treatment of students with anxiety and TMDs.

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Effect of manual therapy on pain and electromyographic activity of masticatory muscles in patients with temporomandibular disorders

Manual Therapy Posturology & Rehabilitation Journal ◽

10.17784/mtprehabjournal.2019.17.715 ◽

2020 ◽

pp. 1-7

Author(s):

Priscila Bageston de Britto ◽

Maurício André Bisi ◽

William Dhein

Keyword(s):

Manual Therapy ◽

Temporomandibular Disorders ◽

Masticatory Muscles ◽

Emg Activity ◽

Electromyographic Activity ◽

Pain Level ◽

Joint Mobilization ◽

Factorial Anova ◽

Quasi Experimental ◽

The Right

Background: Temporomandibular disorders (TMD) are disorders of multifactorial origin that affect the temporomandibular joint and/or masticatory muscles. The TMD can generate compensations where physical therapy acts through myofascial releases and joint mobilizations to restore functionality. Objective: To verify the effects of manual therapy techniques on pain and electromyographic activity (EMG) of masticatory muscles in TMD patients. Methods: This is a quasi-experimental study composed of 10 subjects with TMD and 10 healthy subjects who underwent a session of myofascial release, joint mobilization and digit-pressure on the masticatory and cervical muscles. Pain levels and electromyographic activities of the temporal and masseter muscles were bilaterally assessed during the following situations: (1) Maximum Occlusion and (2) Chewing in the right and the left side with chewing gum. Data analysis was performed using BIOMEC-SAS software, in which the data were filtered with a 4th order Butterworth bandpass filter with 20-400hz and normalized as a percentage of maximum occlusion. Data were divided into homolateral and contralateral muscles alongside chewing. EMG variables were compared by factorial ANOVA, and pain by dependent t-test. Results: TMD patients had pain level reduction during maximum occlusion (Pre:4.55±2.2; Post:2.55±1.6; p=<0.001), right chewing (Pre:2.3±2.16; Post:0.4±0.69; p = 0.02) and left chewing (Pre: 1.0±1.15; Post:0.10±0.31; p = 0.05). There was no effect of manual therapy techniques on the EMG activity bilaterally of the temporal (p = 0.617) and masseter (p = 0.926) muscles during chewing. Patients with TMD had higher EMG activities during chewing on the homolateral temporal (p = 0.001) and masseter (0.004) muscles compared to subjects without injury. Conclusion: Manual therapy techniques reduced pain level in TMD patients. No changes in EMG activity were observed after manual therapy techniques. Finally, the study provides evidence of the influence of manual therapy techniques on short-term pain.

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Differential Activation Patterns of fMRI in Sleep-Deprived Brain: Restoring Effects of Acupuncture

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2014/465760 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 10

Author(s):

Lei Gao ◽

Ming Zhang ◽

Honghan Gong ◽

Lijun Bai ◽

Xi-jian Dai ◽

...

Keyword(s):

Sleep Deprivation ◽

Sham Group ◽

Anterior Cingulate ◽

Activation Patterns ◽

Unique Role ◽

Postcentral Gyrus ◽

Normal Sleep ◽

The Right ◽

Bilateral Thalamus

Previous studies suggested a remediation role of acupuncture in insomnia, and acupuncture also has been used in insomnia empirically and clinically. In this study, we employed fMRI to test the role of acupuncture in sleep deprivation (SD). Sixteen healthy volunteers (8 males) were recruited and scheduled for three fMRI scanning procedures, one following the individual’s normal sleep and received acupuncture SP6 (NOR group) and the other two after 24 h of total SD with acupuncture on SP6 (SD group) or sham (Sham group). The sessions were counterbalanced approximately two weeks apart. Acupuncture stimuli elicited significantly different activation patterns of three groups. In NOR group, the right superior temporal lobe, left inferior parietal lobule, and left postcentral gyrus were activated; in SD group, the anterior cingulate cortex, bilateral insula, left basal ganglia, and thalamus were significantly activated while, in Sham group, the bilateral thalamus and left cerebellum were activated. Different activation patterns suggest a unique role of acupuncture on SP6 in remediation of SD. SP6 elicits greater and anatomically different activations than those of sham stimuli; that is, the salience network, a unique interoceptive autonomic circuit, may indicate the mechanism underlying acupuncture in restoring sleep deprivation.

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Motor Responses of Lumbar Erector Spinae Induced by Electrical Vestibular Stimulation in Seated Participants

Frontiers in Human Neuroscience ◽

10.3389/fnhum.2021.690433 ◽

2021 ◽

Vol 15 ◽

Author(s):

Amélie Desgagnés ◽

Mikaël Desmons ◽

Jean-Philippe Cyr ◽

Martin Simoneau ◽

Hugo Massé-Alarie

Keyword(s):

Head Rotation ◽

Vestibular Stimulation ◽

Erector Spinae ◽

Body Sway ◽

Emg Activity ◽

Motor Responses ◽

Eyes Open ◽

Latency Response ◽

The Right

Introduction: The study of motor responses induced by electrical vestibular stimulation (EVS) may help clarify the role of the vestibular system in postural control. Although back muscles have an important role in postural control, their EVS-induced motor responses were rarely studied. Moreover, the effects of EVS parameters, head position, and vision on EVS-induced back muscles responses remain little explored.Objectives: To explore the effects of EVS parameters, head position, and vision on lumbar erector spinae muscles EVS-induced responses.Design: Exploratory, cross-sectional study.Materials and Methods: Ten healthy participants were recruited. Three head positions (right, left and no head rotation), 4 intensities (2, 3, 4, 5 mA), and 4 EVS durations (5, 20, 100, 200 ms) were tested in sitting position with eyes open or closed. EVS usually induced a body sway toward the anode (placed on the right mastoid). EMG activity of the right lumbar erector spinae was recorded. Variables of interest were amplitude, occurrence, and latency of the EVS-induced modulation of the EMG activity.Results: The short-latency response was inhibitory and the medium-latency response was excitatory. Increased EVS current intensity augmented the occurrence and the amplitude of the short- and medium-latency responses (more inhibition and more excitation, respectively). EVS duration influenced the medium-latency response differently depending on the position of the head. Right head rotation produced larger responses amplitude and occurrence than left head rotation. Opposite head rotation (left vs. right) did not induce a reversal of the short- and medium-latency responses (i.e., the inhibition did not become an excitation), as typically reported in lower legs muscles. The eyes open condition did not modulate muscle responses.Conclusion: Modulation of EVS parameters (current intensity and duration of EVS) affects the amplitude and occurrence of the lumbar erector spinae responses. In contrast, vision did not influence the responses, suggesting its minimal contribution to vestibulomotor control in sitting. The lack of response reversal in sagittal plane may reflect the biomechanical role of lumbar erector spinae to fine-tune the lumbar lordosis during the induced body sway. This hypothesis remains to be further tested.

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Role of the diaphragm in trunk rotation in humans

Journal of Neurophysiology ◽

10.1152/jn.00155.2011 ◽

2011 ◽

Vol 106 (4) ◽

pp. 1622-1628 ◽

Cited By ~ 8

Author(s):

Anna L. Hudson ◽

Jane E. Butler ◽

Simon C. Gandevia ◽

Andre De Troyer

Keyword(s):

Significant Contribution ◽

Motor Units ◽

Emg Activity ◽

Trunk Rotation ◽

Single Motor Units ◽

Inspiratory Activity ◽

Monopolar Electrodes ◽

The Right ◽

Contralateral Rotation

The objectives of the present study were to test the hypothesis that the costal diaphragm contracts during ipsilateral rotation of the trunk and that such trunk rotation increases the motor output of the muscle during inspiration. Monopolar electrodes were inserted in the right costal hemidiaphragm in six subjects, and electromyographic (EMG) recordings were made during isometric rotation efforts of the trunk to the right (“ipsilateral rotation”) and to the left (“contralateral rotation”). EMG activity was simultaneously recorded from the parasternal intercostal muscles on the right side. The parasternal intercostals were consistently active during ipsilateral rotation but silent during contralateral rotation. In contrast, the diaphragm was silent in the majority of rotations in either direction, and whenever diaphragm activity was recorded, it involved very few motor units. In addition, whereas parasternal inspiratory activity substantially increased during ipsilateral rotation and decreased during contralateral rotation, inspiratory activity in the diaphragm was essentially unaltered and the discharge frequency of single motor units in the muscle remained at 13–14 Hz in the different postures. It is concluded that 1) the diaphragm makes no significant contribution to trunk rotation and 2) even though the diaphragm and parasternal intercostals contract in a coordinated manner during resting breathing, the inspiratory output of the two muscles is affected differently by voluntary drive during trunk rotation.

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Electromyographic Activity of Masseter and Temporal Muscles with Different Facial Types

The Angle Orthodontist ◽

10.2319/012308-41.1 ◽

2009 ◽

Vol 79 (3) ◽

pp. 515-520 ◽

Cited By ~ 10

Author(s):

Michelle Santos Vianna-Lara ◽

Paulo Henrique Ferreira Caria ◽

Darcyde Oliveira Tosello ◽

Flávio Lara ◽

Maise Mendonça Amorim

Keyword(s):

Statistical Tests ◽

Maximum Voluntary Contraction ◽

Voluntary Contraction ◽

Emg Activity ◽

Electromyographic Activity ◽

Anterior Portion ◽

Temporal Muscle ◽

Homogeneity Of Variance ◽

The Right ◽

Facial Types

Abstract Objectives: To compare the electromyographic (EMG) activity of the masseter and anterior portion of temporal muscles in different vertical facial types. Materials and Methods: Clinical examination, cephalometric analysis, and electromyographic examination were performed in 44 volunteers ranging from 18 to 35 years old. The volunteers were classified on the basis of their vertical facial characteristics into three groups—brachyfacial, mesofacial, and dolicofacial—by the grouping analysis. The EMG records were obtained with three repetitions during mandibular rest, maximum voluntary contraction in intercuspidation, and simultaneous bilateral isotonic contraction. The Kolmogorov-Smirnov and Levene tests were applied to verify the normality and homogeneity of variance. Analysis of variance and the Kruskal-Wallis test identified statistical differences among groups that did not present normality and homogeneity of distribution, respectively. Significance for all statistical tests was set at P < .05. Results: At rest, only the right temporal and masseter muscles presented statistically significant differences among the groups. The differences were observed between groups 1 and 2 (P = .02) and 1 and 3 (P = .038) for the right temporal muscle, and between groups 1 and 2 (P = .029) for the right masseter muscle. Generally, group 1 presented the lowest EMG values for the four muscles evaluated during rest. For isotonic evaluation, none of the groups of muscles presented statistically significant differences. Conclusion: Different vertical facial types do not determine distinct patterns of EMG activity for the masseter and anterior portion of temporal muscles during rest and bilateral mastication.

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