The Effects of Mental Workload Stress on Upper Trapezius Muscle EMG Activity in Computer Work.

2013 ◽  
Author(s):  
Lawrence M. Schleifer ◽  
◽  
Thomas W. Spalding ◽  
Bradley D. Hatfield ◽  
Scott E. Kerick ◽  
...  
Keyword(s):  
Mental Workload ◽  
Trapezius Muscle ◽  
Computer Work ◽  
Emg Activity ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle

scholarly journals Visceral Manipulation Decreases Pain, Increases Cervical Mobility and Electromyographic Activity of the Upper Trapezius Muscle in Non-Specific Neck Pain Subjects with Functional Dyspepsia: Two Case Reports

2019 ◽  
Vol 12 (2) ◽  
pp. 25-30
Author(s):  
Andréia C. O. Silva, PT, MSc ◽  
Claudia S. Oliveira, PT, PhD ◽  
Daniela A. Biasotto-Gonzalez, PT, PhD ◽  
Marco A. Fumagalli, Eng, PhD ◽  
Fabiano Politti, PT, PhD
Keyword(s):  
Neck Pain ◽  
Range Of Motion ◽  
Case Reports ◽  
Trapezius Muscle ◽  
Emg Activity ◽  
Electromyographic Activity ◽  
Upper Trapezius ◽  
Emg Signal ◽  
Upper Trapezius Muscle ◽  
One Year

Background and Purpose: The lack of clear knowledge about the etiology of nonspecific neck pain (NS-NP) strengthens the need for other mech-anisms, still poorly described in the literature, to be investigated. Therefore, a quantitative analysis of two cases of NS-NP in subjects with functiona dyspepsia was conducted in order to verify the immediate and seven-day postintervention effects of visceral manipulation (VM) to the stomach and liver on neck pain, cervical range of motion (ROM), and electromyographic (EMG) activity of the upper trapezius muscle. Case Description: Case A was an 18-year-old female with a complaint of nonspecific neck pain for one year, with reported pain on waking, momentary intermittent pain, and occasional symptoms of paresthesia in the upper limbs. Case B was a 25-year-old female with a complaint of cervical pain for one year, accompanied by pain in the unilateral temporomandibular joint, and medial thoracic region. Both cases presented functional dyspepsia.Outcomes: The results demonstrated (sub-jects A and B, respectively) a general increase in cervical ROM (range: 12.5% to 44.44%) and amplitude of the EMG signal (immediately postintervention: 57.62 and 20.78; post seven days: 53.54% and 18.83%), and an increase in muscle fiber conduction velocity immediately postintervention (4.44% and 7.44%) and a de-crease seven days postintervention (25.25% and 21.18%). For pain, a decrease was observed immediately postintervention (23.07% and 76.92%) and seven days postintervention (100% for both subjects). Discussion: A single VM provided important clinical improvement in neck pain, cervical spine range of motion, and EMG activity of the upper trapezius muscle, immediately and seven days postintervention in two NS-NP subjects with func-tional dyspepsia.

Effects of electromyographic and mechanomyographic biofeedback on upper trapezius muscle activity during standardized computer work

Ergonomics ◽  
2006 ◽  
Vol 49 (10) ◽  
pp. 921-933 ◽  
Author(s):  
Pascal Madeleine ◽  
Pernille Vedsted ◽  
Anne Katrine Blangsted ◽  
Gisela Sj⊘gaard ◽  
Karen S⊘gaard
Keyword(s):  
Muscle Activity ◽  
Trapezius Muscle ◽  
Computer Work ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle

scholarly journals Evaluation of the Immediate Effect of Auricular Acupuncture on Pain and Electromyographic Activity of the Upper Trapezius Muscle in Patients with Nonspecific Neck Pain: A Randomized, Single-Blinded, Sham-Controlled, Crossover Study

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Andréia Cristina de Oliveira Silva ◽  
Daniela Aparecida Biasotto-Gonzalez ◽  
Douglas Meira dos Santos ◽  
Nivea Cristina De Melo ◽  
Cid André Fidelis de Paula Gomes ◽  
...  
Keyword(s):  
Neck Pain ◽  
Crossover Study ◽  
Rating Scale ◽  
Trapezius Muscle ◽  
Surface Emg ◽  
Auricular Acupuncture ◽  
Emg Activity ◽  
Electromyographic Activity ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle

Background. The aim of the present study was to assess the immediate effects of auricular acupuncture (AA) on the electromyographic (EMG) activity of the upper trapezius muscle and pain in nonspecific neck pain (NS-NP) patients. Twelve patients with NS-NP (NS-NP group) and 12 healthy subjects (HS Group) were enrolled in a randomized, single-blinded, crossover study. Each subject received a single session of AA and sham AA (SAA). Surface EMG activity was measured in the upper trapezius muscle at different “step contractions” of isometric shoulder elevation (15%, 20%, 25%, and 30% MVC). The outcome measure in patients with NS-NP was based on the numerical pain rating scale (NRS). AA treatment led to a significant decrease in EMG activity in both groups (NS-NP group:p= 0.0001; HS group:p< 0.0001—ANOVA test). This was not the case for the SAA treatment (NS-NP group:p= 0.71; HS group:p< 0.54). Significant decreases (p< 0.001) in the NRS were found for both treatments (AA and SAA). This study demonstrated the immediate effect of auricular acupuncture on the electromyographic activity of the upper trapezius muscle but the effect of this intervention on pain symptoms in patients with nonspecific neck pain was inconclusive.

Changes in EMG activity in the upper trapezius muscle due to local vibration exposure

2009 ◽  
Vol 19 (3) ◽  
pp. 407-415 ◽  
Author(s):  
Charlotte Åström ◽  
Markus Lindkvist ◽  
Lage Burström ◽  
Gunnevi Sundelin ◽  
J. Stefan Karlsson
Keyword(s):  
Trapezius Muscle ◽  
Emg Activity ◽  
Vibration Exposure ◽  
Local Vibration ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle
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