scholarly journals A Neurophysiological Pattern as a Precursor of Work-Related Musculoskeletal Disorders Using EEG Combined with EMG

2021 ◽  
Vol 18 (4) ◽  
pp. 2001 ◽  
Author(s):  
Colince Meli Segning ◽  
Hassan Ezzaidi ◽  
Rubens A. da Silva ◽  
Suzy Ngomo
Keyword(s):  
High Risk ◽  
Musculoskeletal Pain ◽  
Prolonged Exposure ◽  
Cortical Inhibition ◽  
Experimental Conditions ◽  
Work Related ◽  
Pain Scores ◽  
Risk Condition ◽  
Biomechanical Constraints ◽  
Manual Tasks

We aimed to determine the neurophysiological pattern that is associated with the development of musculoskeletal pain that is induced by biomechanical constraints. Twelve (12) young healthy volunteers (two females) performed two experimental realistic manual tasks for 30 min each: (1) with the high risk of musculoskeletal pain development and (2) with low risk for pain development. During the tasks, synchronized electroencephalographic (EEG) and electromyography (EMG) signals data were collected, as well as pain scores. Subsequently, two main variables were computed from neurophysiological signals: (1) cortical inhibition as Task-Related Power Increase (TRPI) in beta EEG frequency band (β.TRPI) and (2) muscle variability as Coefficient of Variation (CoV) from EMG signals. A strong effect size was observed for pain measurement under the high risk condition during the last 5 min of the task execution; with muscle fatigue, because the CoV has decreased below 18%. An increase in cortical inhibition (β.TRPI >50%) was observed after the 5th min of the task in both experimental conditions. These results suggest the following neurophysiological pattern—β.TRPI ≥ 50% and CoV ≤ 18%—as a possible indicator to monitor the development of musculoskeletal pain in the shoulder in the context of repeated and prolonged exposure to manual tasks.

Quantitative Assessment of Surgical Ergonomics in Otolaryngology

2020 ◽  
Vol 163 (6) ◽  
pp. 1186-1193
Author(s):  
Cole Rodman ◽  
Natalie Kelly ◽  
Weston Niermeyer ◽  
Laura Banks ◽  
Amanda Onwuka ◽  
...  
Keyword(s):  
High Risk ◽  
Musculoskeletal Pain ◽  
Objective Evaluation ◽  
Tympanostomy Tube ◽  
Cross Sectional ◽  
Work Related ◽  
Increased Risk ◽  
High Prevalence ◽  
Blinded Study ◽  
Ergonomic Risk

Objectives Objective evaluation of the ergonomic risk of common otolaryngology procedures and assessment of work-related musculoskeletal pain and injury. Study Design Cross-sectional intraoperative assessment and survey. Setting Department of Otolaryngology at a tertiary children’s hospital. Subjects and Methods Sixteen otolaryngology attendings, fellows, and residents participated in a blinded study. Intraoperative ergonomics was assessed for tonsillectomies, adenoidectomies, and tympanostomy tube insertions using the Rapid Upper Limb Assessment (RULA). Follow-up surveys were sent to all participating surgeons to determine the prevalence of musculoskeletal pain and formal ergonomic training. Results Zero percent (N = 0/275) of intraoperative observations were found to have a negligible level of ergonomic risk, with 47% low risk, 37% high risk, and 16% very high risk. Tympanostomy tube insertions conferred less risk than tonsillectomy and adenoidectomy, while the use of headlamp or loupes conferred increased risk. Eighty percent of respondents reported having musculoskeletal pain and 40% reported experiencing pain while operating within the past year. The most common area of pain was the cervical spine. No surgeons reported formal ergonomic training. Conclusions Our study demonstrates an unacceptable level of ergonomic risk for common procedures in otolaryngology. Furthermore, most participants reported experiencing musculoskeletal pain despite the duration of examined procedures being relatively short. The high prevalence of work-related musculoskeletal pain and the lack of ergonomic training in our cohort highlight the need for increased awareness of ergonomics as well as the development of formal ergonomic curricula.

Exposure aboard high-performance Marine craft increases musculoskeletal pain and lowers contemporary work capacity of the occupants

2020 ◽  
pp. 147509022098146
Author(s):  
Manudul Pahansen de Alwis ◽  
Riccardo LoMartire ◽  
Björn O Äng ◽  
Karl Garme
Keyword(s):  
Neck Pain ◽  
Musculoskeletal Pain ◽  
High Performance ◽  
Occupational Exposures ◽  
Performance Degradation ◽  
Individual Risk ◽  
Work Related ◽  
Lower Back ◽  
And Performance ◽  
Exposure Conditions

High-Performance Marine Craft (HPMC) occupants are currently being investigated for various psychophysical impairments degrading work performance postulating that these deteriorations are related to their occupational exposures. However, scientific evidence for this is lacking and the association of exposure conditions aboard HPMC with adverse health and performance effects is unknown. Therefore, the study estimates the prevalence of musculoskeletal pain (MSP) among HPMC occupants and the association of their work exposure with MSP and performance degradation. It also presents a criterion for evaluating the self-reported exposure severity aboard three different types of mono-hull HPMC; displacement, semi-displacement and planing, on a par with the available standard criteria for objectively measurable exposures. Furthermore, another criterion is proposed to assess the performance-degradation of HPMC occupants based on self-reported fatigue symptoms and MSP. Swedish Coast Guard HPMC occupants were surveyed for MSP, fatigue symptoms as well as for work-related and individual risk indicators using a validated web-based questionnaire. Prevalence of MSP and performance-degradation during the past 12 months were assessed and presented as a percentage of the sample. Associations of exposure conditions aboard HPMC with MSP and performance-capacity were systematically evaluated using multiple logistic regression models and expressed as odds ratio (OR). Prevalence of MSP was 72% among which lower back pain was the most prevalent (46%) followed by neck pain (29%) and shoulder pain (23%) while 29% with degraded performance. Exposure to severe conditions aboard semi-displacement craft was associated with lower back (OR = 2.3) and shoulder (OR = 2.6) pain while severe conditions aboard planing craft with neck pain (OR = 2.3) and performance-degradation (OR = 2.6). MSP is common among Swedish coast guards. Severe exposure conditions aboard HPMC are significantly associated with both MSP and performance-degradation. The spine and shoulders are the most susceptible to work-related MSP among HPMC occupants which should be targeted in work-related preventive and corrective measures.

scholarly journals O2B.3 Work related stress for new zealand workers in high risk sectors: what can we learn from a demographic analysis?

2019 ◽  
Vol 76 (Suppl 1) ◽  
pp. A15.1-A15
Author(s):  
Kirsten Lovelock ◽  
Trang Khieu
Keyword(s):  
New Zealand ◽  
High Risk ◽  
Work Performance ◽  
Health Behaviours ◽  
Psychosocial Health ◽  
Work Related Stress ◽  
Safety Attitudes ◽  
Work Related ◽  
High Staff Turnover ◽  
Related Stress

The physical and psychological outcomes of work related stress place a burden on individuals, their families, workplaces and communities. Work related stress is a health and socio-economic and political problem. It reduces work performance; drives higher rates of absenteeism or sick leave; can increase rates of injury; prompt high staff turnover; and, can prompt poor health behaviours such as excessive drinking or taking of drugs. The research record focussing on work related stress in New Zealand (NZ) is small and uneven, but growing. The aim of this study was to explore the prevalence of work-related stress among workers by a set of demographic characteristics. The study used data from the Health and Safety Attitudes and Behaviour Survey (HSABS) 2016. A total of 2190 workers in the four high risk industries (agriculture, forestry, construction and manufacturing) were interviewed about their perceptions towards work-related stress. Weighting was conducted to control inherent biases. Differences between workers were examined by age, sex, ethnicity, qualifications and migrant factors (e.g. being born in NZ or arriving in NZ within five years). Overall, 11% of workers responded that they had experienced with work-related stress in the last 12 months. Work-related stress was more statistically prevalent among people from 25 to 34 years of age or those having a bachelor’s degree. Also, people being females or Maori or not born in NZ or first arrived in NZ in the last five years were more likely to have work-related stress. Findings from the study could allow better targeted and informed psychosocial health interventions to be implemented at workplace.

Granulosa Cell Tumor of the Ovary

2003 ◽  
Vol 21 (6) ◽  
pp. 1180-1189 ◽  
Author(s):  
Susan Tinsley Schumer ◽  
Stephen A. Cannistra
Keyword(s):  
High Risk ◽  
Granulosa Cell ◽  
Prolonged Exposure ◽  
Uterine Cancer ◽  
High Risk Patient ◽  
Disease Free Survival ◽  
Granulosa Cell Tumor ◽  
Cell Tumor ◽  
Childbearing Age ◽  
Early Stage Disease

Adult granulosa cell tumor (GCT) of the ovary is oftentimes a hormonally active, stromal cell neoplasm that is distinguished by its ability to secrete sex steroids such as estrogen. Patients may present with vaginal bleeding caused by endometrial hyperplasia or uterine cancer as a result of prolonged exposure to tumor-derived estrogen. In addition, GCT is a vascular tumor that may occasionally rupture and result in abdominal pain, hemoperitoneum, and hypotension, mimicking an ectopic pregnancy in younger patients. GCT is usually associated with a mass on pelvic examination that is subsequently confirmed on ultrasonography. Surgery is required for definitive tissue diagnosis, staging, and tumor debulking. In older women, a total abdominal hysterectomy and bilateral salpingooophorectomy are typically performed. In women of childbearing age, a more conservative unilateral salpingo-oophorectomy may be performed, assuming that careful staging reveals that the disease has not extended outside of the involved ovary and that a concomitant uterine cancer has been excluded. Survival of patients with GCT is generally excellent because most patients present with early-stage disease, although certain high-risk patient groups may be identified. Stage is the most important prognostic factor, with a higher risk of relapse being associated with stages II through IV disease. In addition, patients with stage I disease associated with features such as large tumor size, high mitotic index, or tumor rupture may also be at higher risk in some series. The value of postoperative adjuvant therapy for high-risk patients has not been investigated by prospective randomized trials, which are difficult to perform because of the rarity of this tumor. Nonetheless, the use of adjuvant chemotherapy or radiation has sometimes been associated with prolonged disease-free survival in patients with high-risk features. Because of the propensity of GCT to recur years after initial diagnosis, prolonged surveillance with serial physical examination and serum tumor markers such as estradiol and inhibin is reasonable.

Adult Reconstructive Surgery: A High-Risk Profession for Work-Related Injuries

2016 ◽  
Vol 31 (6) ◽  
pp. 1194-1198 ◽  
Author(s):  
Saad M. Alqahtani ◽  
Mohammad M. Alzahrani ◽  
Michael Tanzer
Keyword(s):  
High Risk ◽  
Reconstructive Surgery ◽  
Work Related

scholarly journals Associations between musculoskeletal pain and work-related factors among public service sector computer workers in Kaunas County, Lithuania

2016 ◽  
Vol 17 (1) ◽  
Author(s):  
Gintare Kaliniene ◽  
Ruta Ustinaviciene ◽  
Lina Skemiene ◽  
Vidmantas Vaiciulis ◽  
Paulius Vasilavicius
Keyword(s):  
Musculoskeletal Pain ◽  
Public Service ◽  
Service Sector ◽  
Related Factors ◽  
Computer Workers ◽  
Work Related
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