Source document position as it affects head position and neck muscle tension

Tension in the muscles of the neck has been found to be a major contributing factor to pain and discomfort among office workers. It was the purpose of this study to produce a mathematical model for the prediction of neck muscle tension based on source document placement at a word processing workstation. 20 subjects were electromyographically sampled for levels of neck muscle tension during both reading and typing tasks in six different source document positions. Measures of head position were also taken in each document position under each condition. From this data a series of regression equations was developed which predict neck muscle tension based on both document position and head position.

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A comparative analysis of neck muscle tension in a harvester operator compared with chainsaw and horse skidding operator and with normal human activities

Journal of Forest Science ◽

10.17221/5/2013-jfs ◽

2013 ◽

Vol 59 (No. 8) ◽

pp. 301-305

Author(s):

J. Macků ◽

J. Dvořák

Keyword(s):

Experimental Data ◽

Body Temperature ◽

Human Activities ◽

Muscle Tension ◽

Field Measurements ◽

Neck Muscle ◽

Breathing Rate ◽

Significant Difference ◽

Normal Human ◽

Muscle Groups

The goal of the experiment was to assess the physical stress experienced by an operator during the use of harvester equipment. Experimental data was obtained from field measurements with a Biofeedback 2000x-pert (BFB) unit, which allows recording of selected physiological parameters on the operator, especially an electromyogram of target muscle groups, body temperature, breathing rate and pulse. Experimental data was interpreted by comparing it with values measured during normal human activities. Measurements were done during logging using a harvester, a chainsaw, while skidding with a horse, while running, and while walking normally. The results of the experiment showed that the electromyograph (EMG) of the investigated muscle groups exhibited values 164% higher during running than during the cut-to-length (CTL) production, up to 77% higher while walking, up to 28% higher during logging with a chainsaw, and even up to 230% higher values while skidding with a horse. Body temperature and pulse measurements did not show a significant difference in values measured during CTL production and during other activities.

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Impact of myofascial mobilization on pain and mobility of the spine in people with pain and increased muscle tone of the cervical spine

Medycyna Manualna ◽

10.5604/01.3001.0013.6640 ◽

2019 ◽

Vol XXIII (2) ◽

pp. 49-60

Author(s):

Marta NIEDBAŁA ◽

Grzegorz MAGOŃ

Keyword(s):

Cervical Spine ◽

Muscle Tone ◽

Muscle Tension ◽

Pain Syndrome ◽

Trigger Points ◽

Cervical Region ◽

Neck Muscle ◽

Pain Level ◽

Linear Measurements ◽

Myofascial Trigger Points

Introduction. Manual therapy is a standard method of physiotherapy to deactivate the interfering potential of the trigger points thus eliminate the subsequent tension within the area of the connective tissue. Aims. The aim of the study is the evaluation of the influence of the myofascial trigger points therapy on the increased neck muscle tension, pain and ROM in people who suffer from cervical pain. Material and methods. A diagnostic method was linear measurements of ROM of the cervical spine and a visual analogue scale (VAS) to assess the pain level. The examination included 35 people aged 25-55, performing whitecollar work in sitting position, selected by a neurologist or orthopedist, with identified increased muscle tension in the cervical region. Achieved results were statistically evaluated. To show the importance of the differences in cervical ROM, the intensity of pain and disability level before and after rehabilitation, a non-parametric signedrank test was utilized. The differences were found as significant for p<0,05. Results and conclusions. A comprehensive physiotherapy of myofascial painfull points results in decrease the pain level in patients suffering from pain syndrome of the cervical spine. Proposed physiotherapy plan lead to improved movement of the cervical spine in all directions.

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MANIPULASI TOPURAK (TOTOK, PUKUL, GERAK) UNTUK PENYEMBUHAN NYERI DAN KETEGANGAN OTOT LEHER

MEDIKORA ◽

10.21831/medikora.v17i2.29182 ◽

2019 ◽

Vol 17 (2) ◽

pp. 113-119

Author(s):

Ela Yuliana ◽

B.M. Wara Kushartanti

Keyword(s):

Muscle Tension ◽

Pain Scale ◽

T Test ◽

Wilcoxon Test ◽

Neck Muscle ◽

Lateral Flexion ◽

Paired Samples ◽

Neck Function ◽

Quota Sampling ◽

And Function

Nyeri dan ketegangan otot leher merupakan keluhan muskuloskeletal umum yang sering dirasakan setiap orang (prevalensi 30%-50%). Topurak (Totok, Pukul, Gerak) merupakan salah satu terapi manipulasi. Tujuan penelitian ini adalah untuk menguji efektivitas manipulasi Topurak untuk penyembuhan nyeri dan ketegangan otot leher pasien Klinik Olahraga Terapi dan Rehabilitasi FIK UNY. Rancangan Pre-experimental dengan One Group Pretest-Posttest Design. Teknik pengambilan sampel menggunakan quota sampling yang dihitung dengan rumus Slovin didapatkan quota sebesar 15 orang. Data yang dikumpulkan adalah ROM, skala nyeri, dan skala fungsi baik sebelum maupun sesudah perlakukan. Paired Samples t Test digunakan untuk menganalisis data ROM dan uji Wilcoxon untuk data skala nyeri maupun skala fungsi. Hasil penelitian menunjukkan adanya peningkatan ROM pada gerakan fleksi, ekstensi, left lateral flexion, right lateral flexion, left rotation, dan right rotation. Didapatkan juga adanya penurunan skala nyeri serta peningkatan skala fungsi leher setelah manipulasi Topurak (p<0,05). Berdasarkan hasil tersebut, maka dapat disimpulkan bahwa manipulasi Topurak efektif untuk penyembuhan nyeri dan ketegangan otot leher. TOPURAK MANIPULATION (TOUCH, PUNCH, MOTION) FOR HEALING OF PAIN AND NECK MUSCLE TENSIONAbstractNeck pain and muscle tension is a common musculoskeletal complaint that is often felt by everyone (prevalence of 30% -50%). Topurak (Touch, Pukul, Motion) is a manipulation therapy. and neck muscle tension of FIK UNY Sports and Therapy Sports and Rehabilitation Clinic patients. Pre-experimental design with One Group Pretest-Posttest Design. The sampling technique uses quota sampling which is calculated by Slovin formula obtained quota of 15 people. Data collected were ROM, pain scale, and function scale both before and after treatment. Paired Samples t Test is used to analyze ROM data and Wilcoxon test for pain scale and function scale data. The results showed an increase in ROM in flexion, extension, left lateral flexion, right lateral flexion, left rotation, and right rotation. There was also a decrease in pain scale and an increase in the scale of neck function after Topurak manipulation (p <0.05). Based on these results, it can be concluded that Topurak manipulation is effective for healing neck pain and muscle tension.

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Miofrenuloplasty for Full Functional Tongue Release in Ankyloglossia in Adults and Adolescents—Preliminary Report and Step-by-Step Technique Showcase

Medicina ◽

10.3390/medicina57080848 ◽

2021 ◽

Vol 57 (8) ◽

pp. 848

Author(s):

Jakub Bargiel ◽

Michał Gontarz ◽

Krzysztof Gąsiorowski ◽

Tomasz Marecik ◽

Paweł Szczurowski ◽

...

Keyword(s):

Healing Process ◽

Muscle Tension ◽

Three Dimensional ◽

Ventral Surface ◽

Dimensional Structure ◽

Neck Muscle ◽

Functional Term ◽

Tongue Movements ◽

Speech Therapist ◽

Tongue Mobility

Background and Objectives: Ankyloglossia is a functional term describing limitations of motor activity of the tongue due to the embryological malformation of the lingual frenulum. The lingual frenulum has a complex, three-dimensional structure, it is not only a mucosal fold, which connects the ventral surface of the tongue and the floor of the mouth. Such knowledge forced us to develop more advanced techniques for tongue release in ankyloglossia. The aim of this study is to describe a novel, precise surgical technique for tongue release. Materials and Methods: Miofrenuloplasty was performed in six patients with impaired tongue movements due to anatomical limitations. All of them were prepared for surgery and evaluated after the procedure by a speech therapist. Results: The healing process was uneventful in all patients. We did not observe any major complications. Tongue mobility and neck muscle tension improved significantly in all cases. In one case, the speech improvement was minor. Conclusions: Miofrenuloplasty is an advanced, but effective and highly predictable procedure for full functional tongue release in cases caused by MFGG complex. It should be done by experienced surgeon.

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Postural Aspects of Neck Muscle Tension∗

Ergonomics ◽

10.1080/00140136608964375 ◽

1966 ◽

Vol 9 (3) ◽

pp. 245-256 ◽

Cited By ~ 10

Author(s):

FLORENCE E. GRAY ◽

J. A. HANSON ◽

F. P. JONES

Keyword(s):

Muscle Tension ◽

Neck Muscle

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NECK-MUSCLE TENSION AND THE POSTURAL IMAGE

Ergonomics ◽

10.1080/00140136108930514 ◽

1961 ◽

Vol 4 (2) ◽

pp. 133-142 ◽

Cited By ~ 8

Author(s):

F. P. JONES ◽

E. E. GRAY ◽

J. A. HANSON ◽

J. D. SHOOP

Keyword(s):

Muscle Tension ◽

Neck Muscle

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Resolution of Postsurgical Diplopia, Paresthesia, and Weakness Following Inpatient Massage Therapy: A Case Report

Global Advances in Health and Medicine ◽

10.1177/2164956119852396 ◽

2019 ◽

Vol 8 ◽

pp. 216495611985239 ◽

Cited By ~ 1

Author(s):

Jennifer Hauschulz ◽

Stephanie Clark ◽

Brent Bauer ◽

Tony Chon

Keyword(s):

Cervical Spine ◽

Muscle Tension ◽

Massage Therapy ◽

Pain Medication ◽

Neck Muscle ◽

Pain Anxiety ◽

Beneficial Effects ◽

Facial Numbness ◽

Multiple Symptoms ◽

The Brain

Massage therapy is utilized in hospitals for patients experiencing pain, anxiety, sleeplessness, among other symptoms. Postsurgical pain is one of the most common reasons massage therapy is ordered. We present a case of a 45-year-old woman who underwent ventral hernia repair. Postoperative day 2, she began to experience multiple symptoms, including double-vision, left-sided facial numbness, tremors, pain, and weakness in her left fingers, arm, and leg. A static magnetic resonance image of the brain and cervical spine were obtained, which revealed disc protrusions at C3/C4, C5/C6, C6/C7, and mild deformity of the spinal cord. The patient’s pain was difficult to control and she was unable to be weaned from intravenous pain medication. Massage therapy was ordered on postoperative days 6 and 7. During both massage sessions, as upper neck muscle tension was reduced, the therapist and patient observed several audible “pops” of the cervical spine with immediate relief of symptoms. In this particular case, massage therapy, though requested to address pain, had a secondary benefit in relieving her diplopia, left-sided facial numbness, tremors, and weakness. Although the mechanism of action is not clear, this case highlights the significant secondary beneficial effects that often occur with massage therapy.

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Effect of halo-type frontal cockpit protection on overtaking

BMJ Case Reports ◽

10.1136/bcr-2018-225427 ◽

2018 ◽

pp. bcr-2018-225427 ◽

Cited By ~ 2

Author(s):

Simon M Rosalie ◽

James M Malone

Keyword(s):

Cervical Spine ◽

Muscle Activity ◽

Visual Cues ◽

National Level ◽

Compressive Loading ◽

Head Position ◽

Type Structure ◽

Erector Spinae ◽

Neck Muscle ◽

Central Pillar

In 2018, the Fédération Internationale de l’Automobile introduced the halo frontal cockpit protection system into Formula 1. While extensive testing was conducted to confirm that the halo protects the driver from contact, the halo’s effect on the driver during overtaking was not tested prior to its introduction. Here, we describe the effect of a halo-type structure on the neck muscle activity of one of the authors, a national-level amateur racing driver, during on-track simulations designed to practise overtaking. We found that the halo-type structure caused an increase in the rates of fatigue and workloads of sternocleidomastoid and cervical erector spinae. The results suggest that the driver adopted a forward and right laterally flexed head position, presumably to clear the central pillar from his visible field. This has the potential to increase compressive loading of the cervical spine and affect the ability to use visual cues during steering manoeuvres.

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Dysponesis Awareness Training: Surface Electromyographic Training for Increased Awareness and Facilitated Neck Muscle Relaxation

Biofeedback ◽

10.5298/1081-5937-40.4.03 ◽

2012 ◽

Vol 40 (4) ◽

pp. 142-149

Author(s):

Richard Harvey ◽

Erin Thorne ◽

Jourdan McPhetridge

Keyword(s):

Muscle Relaxation ◽

Muscle Tension ◽

Neck Muscle ◽

Self Awareness ◽

Somatic Awareness ◽

Awareness Training ◽

Subjective Awareness ◽

Musculoskeletal Impairments ◽

Training Protocol ◽

Semg Activity

This study investigated a simple biofeedback-assisted training protocol for increasing somatic awareness as well as reducing dyponesis. Twelve normal, healthy volunteers with no known musculoskeletal impairments (mean age of 23.8 years) were trained to increase awareness of “wasted effort” in the neck muscles during a simple bending task. Surface electromyography (sEMG) signals were recorded from the midcervical paraspinal muscles (C-5) while the subject performed a forward fold, also described as a “toe touch” movement. The quantitative measures of sEMG activity were compared to a subjective measure of neck muscle tension. During the pretraining measurements, 11 of 12 participants reported no subjective awareness of increased neck muscle tension while bending in a forward fold “toe touch” position. After approximately 10 minutes of “dysponesis awareness training,” all participants had measurable reductions in neck muscle tension, as well as reductions in the subjective sense of tension while performing the forward fold exercise, as compared to pretraining. The 11 participants who increased their self-awareness following training reported not only feeling decreased neck muscle tension but also increased general relaxation levels. The findings suggest that most individuals may be unaware of increased muscle tension during simple activities such as a forward bend, yet may rapidly learn how to reduce dysponesis, such as unnecessary neck muscle overexertion during a forward bend. Furthermore, sEMG dysponesis awareness training could be adapted to rapidly train individuals such as athletes to reduce unnecessary muscle use.

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