RELATION OF INTEGRATED SURFACE ELECTROMYOGRAPHY AND MUSCLE TENSION

1957 ◽  
Vol 7 (7) ◽  
pp. 295 ◽  
Author(s):  
R. C. WILCOTT
Keyword(s):  
Surface Electromyography ◽  
Muscle Tension

scholarly journals Clinical and Electromyographic Assessment of Swallowing in Individuals with Functional Dysphonia Associated with Dysphagia Due to Muscle Tension or Atypical Swallowing

2021 ◽  
Vol 11 (2) ◽  
pp. 167-178
Author(s):  
Paulina Krasnodębska ◽  
Agnieszka Jarzyńska-Bućko ◽  
Agata Szkiełkowska ◽  
Jędrzej Bartosik
Keyword(s):  
Muscle Activity ◽  
Surface Electromyography ◽  
Assessment Tool ◽  
Muscle Tension ◽  
Maximum Amplitude ◽  
Reflux Symptom Index ◽  
Symptom Index ◽  
Submental Muscles ◽  
Swallowing Difficulties ◽  
Almost All

Introduction: Over the past few years, attention has been paid to the coexistence of dysphonia with dysphagia, in the context of functional disorders. The aim of this work was to objectify logopaedic examination of dysphonic patients with coexisting swallowing difficulties by surface electromyography. Methods: The material of the work included 58 patients with muscle tension dysphonia (MTD). Each patient underwent otolaryngologic, phoniatric and logopaedic examination. We collected information about medical history and asked patients to fill out Reflux Symptom Index (RSI), Eating Assessment Tool (EAT-10), Dysphagia Handicap Index (DHI) and Swallowing Disorder Scale (SDS). The algorithm of dysphagia diagnostics in our clinic assumes parallel surface electromyography (SEMG) during Functional Endoscopic Evaluation of Swallowing. Results: In comparison to patients suffering from atypical swallowing, patients with muscle tension dysphagia (MTDg) obtained higher values from almost all questionnaires. Logopaedic evaluation revealed abnormalities in the structure and efficiency of the articulatory organs and in the assessment of primary functions. Patients with more abnormalities in logopaedic examination had significantly higher infrahyoid muscle activity during swallowing observed in EMG. Patients with non-normative swallowing pattern had significantly greater asymmetry of the average and maximum amplitude of masseters, as well as submental muscles. Patients with higher percent of muscles asymmetry gained higher scores in questionnaires. Conclusions: Surface electromyography objectifies logopaedic examination of patients with swallowing difficulties. The results of this work showed that, apart from longer swallows, patients with MTDg differ from patients with non-normative swallowing patterns in the muscle activity measured by SEMG, abnormalities in logopaedic evaluation and the severity of complaints reported by patients.

Validity and Reliability of Surface Electromyography in the Assessment of Primary Muscle Tension Dysphonia

2017 ◽  
Vol 31 (3) ◽  
pp. 386.e9-386.e17 ◽  
Author(s):  
Seyyedeh Maryam Khoddami ◽  
Saeed Talebian ◽  
Farzad Izadi ◽  
Noureddin Nakhostin Ansari
Keyword(s):  
Surface Electromyography ◽  
Muscle Tension ◽  
Validity And Reliability ◽  
Muscle Tension Dysphonia

Relation of Integrated Surface Electromyography and Muscle Tension

1957 ◽  
Vol 7 (3) ◽  
pp. 295-298 ◽  
Author(s):  
R. C. Wilcott ◽  
H. G. Beenken
Keyword(s):  
Surface Electromyography ◽  
Muscle Tension

Making the Unaware Aware: Surface Electromyography to Unmask Tension and Teach Awareness

Biofeedback ◽  
2014 ◽  
Vol 42 (1) ◽  
pp. 16-23 ◽  
Author(s):  
Erik Peper ◽  
Annette Booiman ◽  
I-Mei Lin ◽  
Fred Shaffer
Keyword(s):  
Muscle Contraction ◽  
Surface Electromyography ◽  
Clinical Symptoms ◽  
Muscle Tension ◽  
Pelvic Girdle ◽  
Pelvic Girdle Pain ◽  
Somatic Awareness ◽  
Low Level ◽  
And Control

Poor awareness of covert low-level muscle tension and poor ergonomics can result in chronic muscle bracing and the development of clinical symptoms. This article introduces a simple exercise to teach awareness and control of residual muscle contraction, presents evidence of its effectiveness, and concludes with a case study in which this exercise contributed to the treatment of severe pelvic girdle pain. The authors warn against becoming “captured” by tasks and adjusting to bad ergonomics, and emphasize the importance of enhancing somatic awareness to correct dysponesis before it results in pain and disability.

scholarly journals The Relationship between the Angle of Curvature of the Spine and SEMG Amplitude of the Erector Spinae in Young School-Children

2019 ◽  
Vol 9 (15) ◽  
pp. 3115
Author(s):  
Jacek Wilczyński ◽  
Przemysław Karolak ◽  
Sylwia Janecka ◽  
Magdalena Kabała ◽  
Natalia Habik-Tatarowska
Keyword(s):  
School Children ◽  
Surface Electromyography ◽  
Muscle Tension ◽  
Standing Position ◽  
Erector Spinae ◽  
Spinal Curvature ◽  
Optoelectronic Method ◽  
Impaired Balance ◽  
The Relationship ◽  
Method Analysis

The aim of the study was to analyze the relationship between the angle of spinal curvature and surface electromyography (SEMG) amplitude of the erector spinae in young school-children. A total of 251 children aged 7–8 participated in the study. The analysis involved 103 (41%) children with scoliosis, 141 (56.17%) with scoliotic posture, and seven (3.0%) with normal posture. Body posture was evaluated using the Diers formetric III 4D optoelectronic method. Analysis of SEMG amplitude of the erector spinae was performed with the Noraxon TeleMyo DTS apparatus. A significant correlation was found between the angle of spinal curvature and the SEMG amplitude of the erector spinae. The most important and statistically significant predictor of the SEMG amplitude and scoliosis angle in the scoliosis group was the standing position, chest segment, right side. The largest generalized SEMG amplitude of the erector spinae occurred in both boys and girls with scoliosis. Impaired balance of muscle tension in the erector spinae can trigger a set of changes that create a clinical and anatomopathological image of spinal curvature.

scholarly journals Wireless Surface Electromyography and Skin Temperature Sensors for Biofeedback Treatment of Headache: Validation Study with Stationary Control Equipment (Preprint)

2017 ◽  
Author(s):  
Anker Stubberud ◽  
Petter Moe Omland ◽  
Erling Tronvik ◽  
Alexander Olsen ◽  
Trond Sand ◽  
...  
Keyword(s):  
Mobile Phone ◽  
Skin Temperature ◽  
Correlation Coefficient ◽  
Surface Electromyography ◽  
Intraclass Correlation ◽  
Muscle Tension ◽  
Trapezius Muscle ◽  
Voluntary Contraction ◽  
Finger Temperature ◽  
Biofeedback Treatment

BACKGROUND The use of wearables and mobile phone apps in medicine is gaining attention. Biofeedback has the potential to exploit the recent advances in mobile health (mHealth) for the treatment of headaches. OBJECTIVES The aim of this study was to assess the validity of selected wireless wearable health monitoring sensors (WHMS) for measuring surface electromyography (SEMG) and peripheral skin temperature in combination with a mobile phone app. This proof of concept will form the basis for developing innovative mHealth delivery of biofeedback treatment among young persons with primary headache. METHODS Sensors fulfilling the following predefined criteria were identified: wireless, small size, low weight, low cost, and simple to use. These sensors were connected to an app and used by 20 healthy volunteers. Validity was assessed through the agreement with simultaneous control measurements made with stationary neurophysiological equipment. The main variables were (1) trapezius muscle tension during different degrees of voluntary contraction and (2) voluntary increase in finger temperature. Data were statistically analyzed using Bland-Altman plots, intraclass correlation coefficient (ICC), and concordance correlation coefficient (CCC). RESULTS The app was programmed to receive data from the wireless sensors, process them, and feed them back to the user through a simple interface. Excellent agreement was found for the temperature sensor regarding increase in temperature (CCC .90; 95% CI 0.83-0.97). Excellent to fair agreement was found for the SEMG sensor. The ICC for the average of 3 repetitions during 4 different target levels ranged from .58 to .81. The wireless sensor showed consistency in muscle tension change during moderate muscle activity. Electrocardiography artifacts were avoided through right-sided use of the SEMG sensors. Participants evaluated the setup as usable and tolerable. CONCLUSIONS This study confirmed the validity of wireless WHMS connected to a mobile phone for monitoring neurophysiological parameters of relevance for biofeedback therapy.

Helping Musicians Achieve Peak Performance with Surface Electromyography/Video

Biofeedback ◽  
2011 ◽  
Vol 39 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Kathleen Riley
Keyword(s):  
Surface Electromyography ◽  
Muscle Tension ◽  
Optimal Performance ◽  
Peak Performance ◽  
Self Awareness ◽  
Starting Point ◽  
Performance Problems ◽  
Emotional Approach

For musicians, performance problems often go unnoticed at first and have several different starting points. Regardless of the starting point, the “problem” manifests physiologically as tension. It is useful for therapists, doctors, and other specialists to see clients perform. Corrections need to be made to their physical, mental, and emotional approach to performance. Retraining with surface electromyography biofeedback and video helps identify elevations in muscle tension and incorrect body alignment. Feedback-assisted retraining helps to bring about self-awareness and the skills to reduce tension and achieve optimal performance.

Myoelectric Activity Differences in Three Learning Sessions

2002 ◽  
Vol 16 (2) ◽  
pp. 92-96
Author(s):  
Tiina Ritvanen ◽  
Reijo Koskelo ◽  
Osmo H„nninen
Keyword(s):  
High School Students ◽  
Muscle Activity ◽  
Muscle Tension ◽  
Emg Activity ◽  
Traditional Learning ◽  
Myoelectric Activity ◽  
School Students ◽  
Language Laboratory ◽  
Upper Trapezius ◽  
Muscle Groups

Abstract This study follows muscle activity in three different learning sessions (computer, language laboratory, and normal classroom) while students were studying foreign languages. Myoelectric activity was measured in 21 high school students (10 girls, 11 boys, age range 17-20 years) by surface electromyography (sEMG) from the upper trapezius and frontalis muscles during three 45-min sessions. Root mean square (RMS) average from both investigated muscles was calculated. The EMG activity was highest in both muscle groups in the computer-aided session and lowest in the language laboratory. The girls had higher EMG activity in both investigated muscle groups in all three learning situations. The measured blood pressure was highest at the beginning of the sessions, decreased within 10 min, but increased again toward the end of the sessions. Our results indicate that the use of a computer as a teaching-aid evokes more constant muscle activity than the traditional learning situations. Since muscle tension can have adverse health consequences, more research is needed to determine optimal classroom conditions, especially when technical aids are used in teaching.

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