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AbstractPurposeMaterials and methodsResultsConclusion\nIMPLICATIONS FOR REHABILITATIONTo evaluate the measurement properties of the Arabic Patient-Specific Functional Scale (PSFS) in individuals with upper extremity musculoskeletal disorders.Participants with upper extremity musculoskeletal disorders (N = 139) completed the PSFS, Upper Extremity Functional Index (UEFI), the Disabilities of the Arm, Shoulder and Hand (DASH), Numeric Pain Rating Scale (NPRS) and the Global Assessment of Function scale (GAF). The same outcome measures were completed again with one week in addition to the Global Rating of Change Scale. The test-retest reliability, measurement error, floor and ceiling effects, and construct validity of the PSFS were examined.The PSFS demonstrated very good test-retest reliability (ICC2,1 = 0.82; 95% CI: 0.71–0.88), with no evidence of floor or ceiling effects. The standard error of measurement was determined to be 0.74 while the minimal detectable change was 1.73 points. The PSFS demonstrated significant negative correlation with DASH, NPRS (−0.58, −0.35), and significant positive correlation with the UEFI and GAF (0.56, 0.50). The PSFS demonstrated statistically higher correlation with the DASH and UEFI compared with the NPRS (p < 0.004) supporting our predefined construct validity hypotheses.The Arabic PSFS is an applicable, reliable, and valid outcome measure of upper-extremity activity limitations for patients with upper extremity musculoskeletal disorders.Patients who exhibit no changes in their clinical condition will consistently exhibit similar scores in the Arabic Patient-Specific Functional Scale (PSFS) when the scale is administered multiple times over a period of time.A patient’s score in the Arabic PSFS can be accurately interpreted by rehabilitation professionals to reflect the degree of activity limitation with confidence.The Arabic PSFS can be effectively utilized in both daily clinical practice and research studies to accurately measure the extent of activity limitation experienced by Arabic-speaking individuals with upper extremity musculoskeletal disorders.The Arabic PSFS allows rehabilitation professionals to quantitatively assess activity limitation in a manner that is culturally and lifestyle-appropriate for Arabic-speaking individuals with upper extremity musculoskeletal disorders.Patients who exhibit no changes in their clinical condition will consistently exhibit similar scores in the Arabic Patient-Specific Functional Scale (PSFS) when the scale is administered multiple times over a period of time.A patient’s score in the Arabic PSFS can be accurately interpreted by rehabilitation professionals to reflect the degree of activity limitation with confidence.The Arabic PSFS can be effectively utilized in both daily clinical practice and research studies to accurately measure the extent of activity limitation experienced by Arabic-speaking individuals with upper extremity musculoskeletal disorders.The Arabic PSFS allows rehabilitation professionals to quantitatively assess activity limitation in a manner that is culturally and lifestyle-appropriate for Arabic-speaking individuals with upper extremity musculoskeletal disorders. [ABSTRACT FROM AUTHOR]

Introduction: Musculoskeletal disorders (MSDs) often arise and develop during dentistry studies. The most affected regions are related to the spine. Possible associations between spinal curve parameters and MSDs have not yet been investigated amongst dentistry students. This longitudinal observational study aimed to determine whether spinal curve changes during dentistry studies, analyse the relationship between objective findings and subjectively declared MSDs and compare spinal curve parameters with those published in the literature. Materials and Methods: Seventy‐three dentistry students answered a questionnaire on MSDs, and were examined using the Spinal Mouse® device at the beginning, in the middle, and at the end of their 5‐year study. Results: The spinal curve exhibited a gender diversity in the lumbar lordosis angle, sacrum inclination, and thoracolumbar ratio. From the first to fifth study year, we observed an increase in the range of motions in the sagittal and frontal planes, an increase in the maximal extent of right lateral inclination, and a decrease in maximal left lateral inclination. Whole‐spine backward inclination increased only in women, and forward sacral inclination decreased. No statistically significant relationships were found between the objective findings and subjectively declared MSDs. Conclusions: The spinal curve shape differed between men and women and changed during dentistry studies. No objective markers or predictors of MSDs were found amongst the dentistry students. These findings can serve as a benchmark for further studies on the association between MSDs and objective findings. [ABSTRACT FROM AUTHOR]

Background: Musculoskeletal injuries are noticeably high among the nursing fraternity, with lower back pain (LBP) being the most prevalent. Therefore, this study aimed to map evidence on the burden of occupational musculoskeletal disorders (MSD) among nurses in sub-Saharan Africa (SSA). Methods: This scoping review was guided by Arksey and O'Malley's framework. We conducted a comprehensive literature search with no date limit from the following databases: Science Direct, PubMed, Sabinet (SA ePublications), EBSCOhost platform, World Health Organization (WHO) Library, Google Scholar, SCOPUS, Taylor and Francis, and WorldCat Academic Search with full text for published studies. The search took place from May 2022 to December 2022. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was used for reporting the search results, and a thematic content analysis was used to present the emerging themes from the included studies. Results: A total of 16,714 studies were identified after the database search. Only 29 studies met the inclusion criteria after full-article screening and were included for data extraction. The studies reported a total of 6343 participants from different regions in SSA. The 29 included studies showed evidence on the prevalence of MSD, associated risk factors of MSD and LBP among nurses in SSA with some recommendations on how to reduce the prevalence of MSD among nurses. Conclusion: The study findings reveal that there is a high prevalence of MSD among nurses, especially LBP. The etiology of MSD among nurses is multifactorial, and multifaceted strategies to address MSD are recommended. Further research is recommended to explore strategies that can be used to curb the high prevalence of MSD among nurses. [ABSTRACT FROM AUTHOR]

AbstractThe aim of this study was to append a passive soft back exoskeleton to a validated musculoskeletal model and assess its effectiveness in reducing lumbar loads. Fifteen participants lifted a box, with and without wearing a CORFOR® exoskeleton. A full body OpenSim model was used to estimate lumbar joint moments and reaction forces, as well as low back muscles forces. Wearing the exoskeleton reduced the peak flexion moment, muscles forces, as well as peak compressive and shear forces. This musculoskeletal modelling study shows that wearing the exoskeleton may reduce lumbar spine loads and may contribute to prevent low back disorders. [ABSTRACT FROM AUTHOR]

Background: Despite increases in musculoskeletal disorders (MSD) in Canada, evidence suggests utilization of chiropractic services has remained relatively stable over time. Understanding the extent to which chiropractors are consulted and factors associated with their utilization may suggest factors related to accessing care. We assessed the change in prevalence and characteristics of Canadians seeking chiropractic care across two time periods 2001–2010 and 2015–2018. Methods: We used national cross-sectional data from seven cycles of the Canadian Community Health Survey between 2001 and 2018. The survey included Canadians aged 12 years and older living in private dwellings in all provinces and territories. National annual weighted prevalence and age-standardized weighted prevalence (and 95% confidence intervals) of chiropractic utilization were calculated. We calculated prevalence of chiropractic utilization stratified by demographic, socioeconomic, lifestyle and health-related variables. Crude linear trends and change in prevalence from 2001 to 2010 were assessed using linear regression models. Results: The national annual prevalence of Canadians consulting a chiropractor in the previous 12 months slightly increased from 11.0% (95% CI 10.8, 11.3) in 2001 to 11.4% (95%CI 11.1, 11.7) in 2010, and in those reporting receiving regular health care from a chiropractor from 7.5% (95%CI 7.2, 7.7) in 2015 to 7.9% (95%CI 7.7, 8.2) in 2018. Prevalence of utilization varied by province, highest in the Western provinces but lowest in Atlantic provinces. The age-specific prevalence of chiropractic utilization was highest in those aged 35–49 years and remained stable over time, except for slight increase in those aged 65–79 years. A higher percentage of Canadians identifying as white, Canadian-born, in the highest quintile of household income, overweight, physically active and in excellent health reported seeking chiropractic services. The most common reported chronic conditions measured in the survey among Canadians consulting chiropractors were chronic back problems, arthritis, fibromyalgia and headaches. Conclusion: The national prevalence of utilization of chiropractic services among Canadians slightly increased over time but varied by province and respondents' socioeconomic and health characteristics. Chronic back problems were the most common reported chronic condition. This comprehensive population-based study on chiropractic utilization in Canada can be used to inform decisions concerning health human resources and access to rehabilitation care for MSD. [ABSTRACT FROM AUTHOR]

Introduction: Both professional musicians and conservatoire students are at significant risk of developing playing-related musculoskeletal disorders (PRMDs) during their career life. With the growing number of students pursuing a conservatory degree and graduating from music conservatory in China, the aims of this study were: (1) to identify the nature of PRMD and explore the prevalence of PRMD in Chinese conservatoire students; (2) to determine the relevant risk factors with the presence of PRMD among Chinese conservatoire students; and (3) to suggest preventive interventions for young pianists at their early career stage. Methods: A self-reported online survey study was conducted among 363 Chinese conservatoire students who majored in piano performance. Results: Of all respondents, 82.6% reported having had at least one PRMD. The wrist was proved to be the most affected body site, followed by the shoulder, finger and arm. Respondents who experienced PRMD reported "pain," "fatigue," and "stiffness" as the most frequent symptoms. The main risk factors associated with PRMD included gender, years of playing experiences, practice hours, warmup habits before practice, and break-taking during practice. Discussion: Female students, those with longer year of playing experience, those who practice longer hours, those who do not warm up before practice, and those who do not take breaks during practice were found to have more PRMD symptoms and higher level of severity. This study highlights the need to increase awareness of PRMD among conservatoire students and to understand the occurrence of PRMD; it is helpful for young pianists to prevent severe musculoskeletal disorders and implement preventive measures at early career stages. Further studies are suggested to follow up on music students who have had at least one PRMD at different stages of professional musical training. [ABSTRACT FROM AUTHOR]

Background: Intensive care units (ICUs) are one of the high-risk working areas in terms of musculoskeletal disability and ergonomic risks including the environment and posture factors. Correct posture technique is often ignored by nurses working in these units. This study was conducted to determine the effect of posture regulation training on work-related musculoskeletal disorders, fatigue level and job performance in nurses working in ICUs. Methods: This quasi-experimental study with one-group pretest-posttest design included 64 intensive care nurses. The nurses received posture regulation training in three different sessions. The post-test was administered four months after the posture regulation training. Results: The nurses reported to frequently have aches, pains and discomfort in the neck, upper back and lumbar regions. After the posture regulation training, their level of pain, ache and discomfort in the neck, right and left shoulder, upper back, lower back and right/left foot areas decreased significantly (p < 0.05). The posture regulation training reduced the levels of behavior/severity and affect, which are sub-dimensions of fatigue, and increased the level of contribution to work, which is a sub-dimension of job performance (p < 0.05). Conclusion: The posture regulation training decreased the level of symptoms in the neck, shoulder, upper back, lower back and foot regions of intensive care nurses and partially improved their fatigue level and job performance. Therefore, posture regulation training should be added to in-service training programs and permanent measures should be taken for ergonomic risks in ICUs. [ABSTRACT FROM AUTHOR]

Introduction: The job of sonographers exposes them to numerous ergonomic risk factors, making the sonography profession one of the high-risk job groups vulnerable to musculoskeletal disorders (MSDs). The present systematic review and meta-analysis specifically examined the prevalence of MSDs among sonographers. Materials and methods: The present review study was carried out in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. The protocol of the study was registered in the international prospective register of systematic review (PROSPERO) with the code CRD42024507972. Searches were conducted in databases including PubMed, Scopus, Web of Science, Science Direct, SID, ISC, and Google Scholar, without imposing a time limit until February 7th, 2024. The random-effects model was employed for meta-analysis, and the I2 index was used to assess heterogeneity among studies. Finally, data analysis was performed using STATA (version 14). Results: Based on the search in different databases, a total of 4367 articles were identified. Finally, after screening, selecting, and quality evaluation of the studies, 30 studies were considered for meta-analysis in which 13,916 sonographers were examined. According to the results of the meta-analysis, the overall prevalence of MSDs among sonographers was reported as 75.80% (95% CI: 65.37–86.23, I2 = 99.7%, P < 0.001). Additionally, the prevalence rates of these disorders in the neck (63.73%), shoulder (60.13%), upper back (53.69%), lower back (49.84%), wrist (44.41%), elbow (27.46), hip (24.93%), knee (19.59), and ankle (16.92%) were determined. Conclusion: Given the relatively high prevalence of MSDs among sonographers and the importance of reducing specific risk factors associated with their duties, it is recommended to consider solutions such as carrying out ergonomic assessments and interventions, as well as providing training programs and appropriate corrective exercises to mitigate MSDs among sonographers. [ABSTRACT FROM AUTHOR]

Background/Objectives: Information and Communications Technology (ICT) advancements and high customer expectations are boosting the use of digital transformation and tech tools in business processes in a competitive environment. This trend enhances business effectiveness and efficiency but also introduces technostress as a new workplace stress factor. Technostress, defined as stress induced by using ICT in the workplace, has become increasingly prevalent in modern work environments, especially in sectors such as banking, due to digital transformation. As technology use intensifies, it raises concerns about potential adverse psychological and physiological effects on employees, particularly in relation to burnout. From a physiological perspective, musculoskeletal disorders (MSDs) are quite common among employees who use ICT for extended periods. MSDs can play a significant moderating role in the relationship between technostress and burnout. In this context, this study aimed to examine the moderating role of MSDs in the effect of technostress on burnout. Methods: This quantitative study surveyed a convenience sample of 220 bank employees, drawing on COR theory, the JD-R model, the P-E fit approach, and transactional stress theory. Data were analyzed using Structural Equation Modeling with SmartPLS 4.0 software, enabling examination of relationships between variables derived from these frameworks. Results: The results reveal that technostress increases bank employees' burnout experience. Additionally, bank employees with MSDs experience higher burnout levels than those without MSDs. Conclusions: The study's findings provide valuable insights into managing workplace stress, addressing mental health problems, and promoting employee well-being in the digital age. These results have potential implications for academic understanding and practical applications in sustainable management. [ABSTRACT FROM AUTHOR]

Aims: To investigate the relationship between the level of physical activity and sedentary behavior in young adults aged 18-35 and to evaluate the effects of this relationship on musculoskeletal pain, posture, muscle shortness, and trunk muscle endurance Material and Methods: 219 students were included in this cross-sectional study. Data were obtained by using the case report form which determines the demographic characteristics and sedentary behavior of the students, The International Physical Activity Index - short form, posture analysis form, muscle shortness evaluation form, and trunk muscle endurance evaluation form. Results: In the study, 66.2% of patients were female and 33.8% were male. The ratio of highly active individuals in males, and inactive and insufficiently active individuals in females was significantly higher (p <0.05). Musculoskeletal pain was significantly higher in inactive and insufficiently active individuals (p<0.001). A statistically significant negative correlation exists between physical activity level and pain frequency, duration, and pain scores (p<0.001). There was a statistically significant positive correlation between trunk endurance tests and both physical activity level and exercise participation. In individuals who did not exercise, there was a significant shortening of the lumbar extensor muscles and gastrosoleus and an increase in thoracic kyphosis (p<0.05). It was observed that a statistically significant positive correlation exists between daily sitting time and elbow, wrist, and knee pain, an increase in lumbar lordosis (p<0.05). In those who spent more time in front of the computer, head-neck and elbow pain, the duration of pain, and pain scores, the shortness of the teres major, latissimus dorsi, rhomboideus major, and minor muscles, thoracic kyphosis, shoulder protraction, and anterior head tilt were significantly higher (p<0.05). Conclusion: In our study, we observed that students with low levels of physical activity and sedentary behavior experienced decreased trunk muscle endurance, posture disorders, increased pain, and heightened muscle shortness. [ABSTRACT FROM AUTHOR]

(1) Background: Musculoskeletal disorders of the upper limbs are a common medical condition among dental hygienists and dentists, making them a common occupational risk for dental professionals. The purpose of the work was to collect information about the dental professions and their habits to highlight what can be good practices to be carried out to prevent any musculoskeletal disorders. (2) Methods: To identify habits and problems inherent in the professional activity of dental hygienists and dentists, a questionnaire was formulated on the use of enlarging systems. (3) Results: The questionnaire was completed by 241 dental professionals. As for the use of magnifiers, 72.6% of participants use them: among dental hygienists, 67.8% use magnifiers, among dentists, 80.9% use magnifiers; there is a statistically significant difference. There is no statistically significant difference between professions regarding muscle disorders. (4) Conclusions: For a clearer assessment, it would be appropriate to submit the questionnaire to a wider sample of professionals, to define better the correlation between musculoskeletal disorders, work activity and the type of enlarging systems used. [ABSTRACT FROM AUTHOR]

Background: Pain attributed to musculoskeletal disorders are a significant hinderance to work ability and economic growth, especially in developing countries. Quality of life and lived experience of workers with musculoskeletal disorders have not been explored enough to determine whether person-centred care is provided. There is a wealth of evidence for using the biomedical approach in the management of workers with musculoskeletal disorders, which has proved ineffective in reducing absenteeism and symptoms experienced by workers. The purpose of this study was to explore the lived experience of workers seeking care for musculoskeletal disorders and how their pain attitudes and beliefs influenced their experience. Methods: A qualitative approach with thematic analysis was used. Purposive sampling was used to recruit six participants for semi-structured interviews. All participants were either experiencing pain attributed to a musculoskeletal disorder or had received care for a musculoskeletal disorder. Results: Pain attitudes and beliefs of workers with a musculoskeletal disorder and healthcare professionals greatly influenced the care and recovery process of musculoskeletal disorders. There is a primary biomedical lens informing care of workers with musculoskeletal disorders received. Workers expect healthcare professionals to explore their concerns further, but the focus of care for most participants was their presenting complaint. There is also a need for the autonomy of workers to be preserved, and communication between healthcare professionals and workers with musculoskeletal disorders needs to improve. Conclusions: Many stakeholders are involved in the recovery process from musculoskeletal disorders. There is a need for a biopsychosocial informed practice to improve return-to-work (RTW) in workers with musculoskeletal disorders. Change is needed at all healthcare system levels to reduce the negative experiences of workers and maladaptive pain beliefs that is associated with persisting symptoms and extended absenteeism. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to investigate the effects of a head/neck supporting exoskeleton (HNSE) on the electromyographic fatigue threshold (EMGFT) of the neck and shoulder muscles during a simulated overhead work task. Background: Overhead work is a well-known risk factor for neck and shoulder musculoskeletal disorders due to the excessive strain imposed on the muscles and joints in these regions. Method: Fourteen healthy males performed a repetitive overhead nut fastening/unfastening task to exhaustion while wearing and not wearing the HNSE at two neck extension angles (40% and 80% of neck maximum range of motion). Electromyographic signals were continuously recorded from the right and left sternocleidomastoid (SCMR, SCML), splenius capitis (SCR, SCL), upper trapezius (UTR, UTL), and anterior deltoid (ADR, ADL) muscles. The normalized electromyographic amplitude (nEMG) data was time normalized, and a bisegmental linear regression was applied to determine the muscle fatigue break point. Results: The results showed a significant increase in fatigue threshold time in the SCMR (p <.001), SCML (p =.002), and UTR (p =.037) muscles when the HNSE was used. However, the EMGFT times for the right and left deltoid and left trapezius muscles showed a nonsignificant reduction due to the head/neck support exoskeleton use. In addition, the neck extension angle did not reveal a significant effect on muscles' EMGFT time. Conclusion: Overall, the findings confirmed a significant delay in fatigue onset in sternocleidomastoid muscles, as measured by the electromyographic fatigue threshold. This finding suggests that the HNSE can be an effective ergonomic intervention for reducing the risk of musculoskeletal disorders in overhead workers. However, further studies are needed to investigate the effect of the HNSE at other neck extension angles and more realistic tasks to ensure the generalizability of our results. Application: The present findings emphasize the application of the fatigue onset time to evaluate the effectiveness of ergonomic interventions, including exoskeletons, which can subsequently be utilized to alleviate postural demands and reduce the risk of musculoskeletal disorders. [ABSTRACT FROM AUTHOR]

The study aimed to investigate the pattern and trend of Musculoskeletal (MSK) disorders in people aged 5–19 years from 1990 to 2021. The data was sourced from the Global Burden of Disease study 2021. The Age-standardized DALYs rates (ASDR), age-standardized mortality rate (ASMR), age-standardized prevalence rate (ASPR), and age-standardized incidence rate (ASIR) and their corresponding average annual percent change (AAPC) for MSK disorders were evaluated by sex, region, and sociodemographic index (SDI) quintiles. Globally, the ASPR of MSK disorders among children and adolescents increased per 100,000 population from 3048.66 (95% confidence interval [CI]: 2336.68–3887.02) in 1990 to 3105.46 (95% CI: 2421.09–3904.95) in 2021 (AAPC 0.06 [95% CI: 0.05–0.07]). In 2021, individuals aged 15–19 experienced the highest burden compared to those aged 5–9 and 10–14. In 2021, high SDI countries had the highest ASIR, ASPR, ASDR of MSK disorders. The AAPC of ASPR in high SDI countries showed a stark contrast to that in low SDI countries for the same period (AAPC 0.48 vs. AAPC −0.03). From 1990 to 2021, in low SDI and low-middle SDI countries, the increase in DALYs was primarily due to population growth. However, in middle SDI, high-middle, and high SDI countries, the increases were mainly due to epidemiological changes. Globally, patients aged 10–14 experienced better care compared to those in the 5–9 and 15–19 age groups. Specific preventive health measures are needed for females and adolescents aged 15–19 in high SDI countries. [ABSTRACT FROM AUTHOR]

Musculoskeletal disorders (MSDs) account for the majority of work-related non-fatal diseases in industry. In the literature, there are many ergonomic risk assessment methods and software that implements them, from simple checklists to complex assessments to prevent MSD-related diseases. However, in these applications, while angles are calculated automatically, relative questions such as arm grip success, shoulder and arm support are directed to the user with an interface. In this study, a web-based platform has been developed that can simultaneously provide ergonomic risk assessment (ERD) reports for REBA, RULA and OWAS methods with the Region-based Convolutional Neural Network (R-CNN) of MediaPipe machine learning library. The evaluation and comparison algorithm on the platform and the relative questions within the ERD methods will also be answered by the developed application, ensuring consistency and ease of use. With this aspect of the study, it is aimed to fill the gap in the literature. For the validation of the proposed platform, the Object Keypoint Similarity (OKS) test used in pose estimation algorithms was applied. The test was applied to each of the 32 body key points, with an overall average accuracy of 92%. In the other test process, the accuracy of the measured body joint angles was calculated to be used in ERD methods. Each of the 13 body joint angles was compared with the actual baseline angles and an average RMSE (Root Mean Square Error) of 7.7° was obtained. When the RMSE value and OKS result obtained were compared with the current literature, it was determined that the values were consistent. [ABSTRACT FROM AUTHOR]

Background/Objectives: Inappropriate posture, overweight, and physical inactivity are common causes of pathologies on muscles, ligaments, joints, and bone structures, which could negatively impact the quality of present and future life. The challenge of this work was to develop a diagnostic approach to identify the causes of musculoskeletal disorders in an adolescent population in order to implement preventive procedures. Methods: A total of 147 subjects aged between 14 and 18 years who were affected by musculoskeletal disorders and who accessed the Clinical Posturology unit of the IRCCS San Gerardo hospital, Monza, Italy, from 2015 to 2023, were enrolled. The clinical evaluation of each subject included a posturology visit, a physical examination, instrumental devices, such as stabilometric platform, gait analysis, MuscleLab, and imaging tests, such as Radiographic and Magnetic resonance, and a final diagnosis. Results: Ninety-eight (66.6%) subjects reported pain at the lumbar spine (33.3%), followed by knee/lower limb (22.4%), cervical spine (13%), and dorsal spine (12.3%). Imaging diagnostics underlined alterations in the musculoskeletal components, bone dimorphism, and asymmetry of the skeleton in 68% of cases. Thirty-one (21%) subjects received a diagnosis of postural dysfunction, seventy-two (49%) received a diagnosis of somatic dysfunction, and ten (7%) received a diagnosis of both postural and somatic dysfunctions. Conclusions: Our work highlighted that the three instrumental devices used allowed us to detect somatic and postural functional changes that cause musculoskeletal pathologies in adolescents. [ABSTRACT FROM AUTHOR]

Assessing musculoskeletal disorders (MSDs) in the workplace is vital for improving worker health and safety, reducing costs, and increasing productivity. Traditional hazard identification methods are often inefficient, particularly in detecting complex risks, which may compromise risk management. This study introduces a semi-automatic platform using two motion capture systems—an optical system (OptiTrack®) and a Bluetooth Low Energy (BLE)-based system with inertial measurement units (IMUs), developed at the Biomedical Engineering Laboratory, Universidad de Concepción, Chile. These systems, tested on 20 participants (10 women and 10 men, aged 30 ± 9 years without MSDs), facilitate risk assessments via the digitized NIOSH Index method. Analysis of ergonomically significant variables (H, V, A, D) and calculation of the RWL and LI showed both systems aligned with expected ergonomic standards, although significant differences were observed in vertical displacement (V), horizontal displacement (H), and trunk rotation (A), indicating areas for improvement, especially for the BLE system. The BLE Inertial MoCap system recorded mean heights of 33.87 cm (SD = 4.46) and vertical displacements of 13.17 cm (SD = 4.75), while OptiTrack® recorded mean heights of 30.12 cm (SD = 2.91) and vertical displacements of 15.67 cm (SD = 2.63). Despite the greater variability observed in BLE system measurements, both systems accurately captured vertical vertical absolute displacement (D), with means of 32.05 cm (SD = 7.36) for BLE and 31.80 cm (SD = 3.25) for OptiTrack®. Performance analysis showed high precision for both systems, with BLE and OptiTrack® achieving precision rates of 98.5%. Sensitivity, however, was lower for BLE (97.5%) compared to OptiTrack® (98.7%). The BLE system's F1 score was 97.9%, while OptiTrack® scored 98.6%, indicating both systems can reliably assess ergonomic risk. These findings demonstrate the potential of using BLE-based IMUs for workplace ergonomics, though further improvements in measurement accuracy are needed. The user-friendly BLE-based system and semi-automatic platform significantly enhance risk assessment efficiency across various workplace environments. [ABSTRACT FROM AUTHOR]

Musculoskeletal disorders occur frequently in industrial settings, and police officers in particular are at high risk of developing musculoskeletal disorders due to the nature of their work, but research on this is lacking. Therefore, the purpose of this study was to examine the prevalence and risk factors of musculoskeletal disorders according to the job functions of police officers. A survey was conducted, targeting active-duty police officers, and data were collected from 4268 respondents who answered all items on the questionnaire. As a control group, we used the general population dataset from the 2020 National Health and Nutrition Examination Survey conducted in Korea. The survey included general information such as gender, age, working hours, and type of work. It also investigated medical utilization, including the frequency of medical visits and hospitalizations. The assessment of musculoskeletal disorders was analyzed using pain NRS, VAS, SPADI, and ODI. The working characteristics of police officers were found to be more irregular in terms of working hours and involved a higher intensity of work activities compared with the general population. However, there was a lack of precise diagnoses and continuous treatment for these disorders. These results imply that police officers' occupational characteristics are related to musculoskeletal disorders. Considering the direct relationship between police officers' health and public safety, systematic evaluation and management of their musculoskeletal disorders are needed. [ABSTRACT FROM AUTHOR]

Preventing work-related musculoskeletal disorders (WMSDs) is crucial in reducing their impact on individuals and society. However, the existing mainstream 2D image-based approach is insufficient in capturing the complex 3D movements and postures involved in many occupational tasks. To address this, an improved deep learning-based rapid entire body assessment (REBA) method has been proposed. The method takes working videos as input and automatically outputs the corresponding REBA score through 3D pose reconstruction. The proposed method achieves an average precision of 94.7% on real-world data, which is comparable to that of ergonomic experts. Furthermore, the method has the potential to be applied across a wide range of industries as it has demonstrated good generalisation in multiple scenarios. The proposed method offers a promising solution for automated and accurate risk assessment of WMSDs, with implications for various industries to ensure the safety and well-being of workers. PRACTITIONER SUMMARY: This paper proposes a deep learning-based improved rapid entire body assessment (REBA) method for assessing work-related musculoskeletal disorders (WMSDs) risks using 3D pose reconstruction from videos, achieving 94.7% precision, comparable to ergonomic experts, with potential applications across various industries. [ABSTRACT FROM AUTHOR]

Background: Family factors, sleep, and physical activity have previously been associated with risk of sick leave and disability benefits due to musculoskeletal disorders. However, how these factors act during adolescence and young adulthood is unclear. The aim of this study was to (i) examine if chronic pain, disability benefits and education in parents influence the risk of long-term sick leave due to musculoskeletal disorders in young adulthood, and (ii) to explore if offspring sleep problems and physical activity modify these effects. Methods: A population-based prospective study of 18,552 adolescents and young adults (≤ 30 years) in the Norwegian HUNT Study. Survey data was linked to national registry data on sick leave, disability benefits, family relations and educational attainment. We used Cox regression to estimate hazard ratio (HR) with 95% confidence interval (CI) for long-term (≥ 31 days) sick leave due to a musculoskeletal disorder in offspring associated with parental factors and the joint effect of parental factors and offspring lifestyle factors. Results: Parental chronic pain (HR 1.36, 95% CI 1.27–1.45), disability benefits (HR 1.41, 95% CI 1.33–1.48) and low educational attainment (HR 1.78, 95% CI 1.67–1.90) increased the risk of long-term sick leave due to musculoskeletal disorders among offspring. There was no strong evidence that sleep and physical activity modified these effects. Conclusion: Chronic pain, disability benefit and low education in parents increased the risk of long-term sick leave due to musculoskeletal disorders among offspring, but these effects were not modified by offspring sleep problems or physical activity level. The findings suggest that efforts beyond individual lifestyle factors might be important as preventive measures. [ABSTRACT FROM AUTHOR]

Background: Temporomandibular disorders (TMD) may be associated with degenerative disease of temporomandibular joint (TMJ), such as condyle erosion and subchondral cysts. Occlusal splint and cranio-mandibular manual therapy, or combined therapy, is recommended as a conservative treatment to alleviate pain-related signs and symptoms in TMD. This study aimed to assess osseous condylar changes and skeletal changes following occlusal splint and cranio-mandibular manual therapy in TMD using cone beam computed tomography (CBCT). Methods: A retrospective cohort study included 24 patients diagnosed with TMD. Combined therapy was performed until pain-related signs and symptoms disappeared. CBCT scans were performed before and after therapy. Osseous structure of condyles and their subsequent modifications were analyzed on CBCT images: flattening, erosion, and subchondral cyst. Sella-Nasion-A point (SNA), Sella-Nasion-B point (SNB), A point-Nasion-B point (ANB), Sella-Articulare-Gonion (Condylar angle), and anterior and posterior facial height (AFH, PFH) were measured on CBCT-generated lateral cephalograms. A paired t-test, Wilcoxon rank-sum test, McNemar test, and Stuart–Maxwell test were used for the statistical analyses. Results: The treatment period with combined therapy was 7.42 ± 3.27 months, and 21 out of 33 TMJ presenting degenerative disease (63.6%) had significant complete remodeling (p < 0.05). Following therapy, SNB significantly decreased from 75.61 ±3.47° to 74.82 ± 3.41° (p = 0.02), ANB significantly increased from 4.05° (3.35–4.9°) to 4.8° (3.3–6.12°) (p < 0.001), AFH significantly increased from 112.85 mm (109.28–118.72) to 115.3 mm (112.58–118.88) (p < 0.001), PFH/AFH significantly decreased from 64.17 (61.39–66.1) to 63 (59.68–64.51) (p = 0.012), and condylar angle significantly increased from 140.84 ± 8.18° to 144.42 ± 8.87° (p = 0.007). Conclusion: Combined therapy promoted significant condylar remodeling in TMJ degenerative disease, along with skeletal changes (mandibular retrusion and increase in facial height). Therapeutic strategies should consider condylar remodeling in TMD. Skeletal and dental parameters should be evaluated prior to occlusal splint therapy. [ABSTRACT FROM AUTHOR]

Background and Aims: Low back pain is a prevalent condition affecting 60–85% of individuals during their lifetime. Despite various proposed mechanisms, the etiology of low back pain remains unclear. This study aims to evaluate the effectiveness of combining ultrasound-guided infiltrations with early rehabilitation in reducing pain and improving functional limitations in patients with chronic nonspecific low back pain. Methods: A retrospective observational study was conducted, reviewing data from January to April 2024 involving 40 patients with chronic nonspecific low back pain. Each patient received two cycles of ultrasound-guided lidocaine and corticosteroid infiltrations at the level of the posterior lower iliac spine, followed by 10 rehabilitation sessions. Patients were assessed at baseline (T0), after the first treatment cycle (T1), and after the second cycle (T2) using the Oswestry Disability Index, Quebec Back Pain Disability Scale, Roland Disability Questionnaire, and Numeric Rating Scale. Results: Significant improvements were observed across all assessment scales. The ODI scores decreased from 33.5 at baseline to 3.5 after treatment (p < 0.001). Similar reductions were noted in the QBPDS (from 61.5 to 10.3), RDQ (from 18 to 3.4), and NRS (from 7.4 to 1.3). The combination of ultrasound-guided infiltrations and early rehabilitation resulted in a significant reduction in pain and disability, with the most notable improvements occurring after the second treatment cycle. Conclusions: The integration of ultrasound-guided infiltrations with early rehabilitation is highly effective in managing chronic nonspecific low back pain, significantly reducing both pain and functional limitations. [ABSTRACT FROM AUTHOR]

Sitting posture recognition systems have gained significant attention due to their potential applications in various domains, including healthcare, ergonomics, and human-computer interaction. This paper presents a comprehensive literature review and analysis of existing sitting posture recognition systems. Through an extensive examination of relevant research articles and conference papers, we identify and analyze the underlying technologies, methodologies, datasets, performance metrics, and applications associated with these systems. The review encompasses both traditional methods, such as vision-based approaches and sensor-based techniques, as well as emerging technologies such as machine learning and deep learning algorithms. Additionally, we examine the challenges, constraints, and future trends in the field of sitting posture recognition systems. Researchers, practitioners, and policymakers who want to comprehend the most recent developments and latest trends in sitting posture recognition technology will find great value in this study. [ABSTRACT FROM AUTHOR]

Musculoskeletal disorders (MSDs) present a major occupational health challenge, especially among office workers. Objective: To evaluate the effectiveness of a workplace intervention program for managing MSDs and measure its impact on presenteeism/absenteeism and health status. Methods: This semi-experimental study was conducted between May 2019 and October 2022 in Greece and involved 247 office workers randomly assigned to early and late intervention groups. The intervention included a seminar on ergonomics and proper workstation practices with a demonstration of exercises. Data were collected by the SF-36, the Standardised Nordic, and the Work Productivity and Activity Impairment Questionnaires. Results: In the early intervention group (n = 143), presenteeism significantly decreased (p = 0.045), from a mean value of 0.11 to 0.07, but not absenteeism. Significant improvements were observed in physical (p = 0.007) and mental health (p = 0.012). Reductions in pain were recorded for the neck (p = 0.032), shoulders (p = 0.015), wrists (p = 0.014), upper back, lower back, hips, and knees (p = 0.044 for each). In the late intervention group (n=104), there were no significant changes in absenteeism or presenteeism. Mental health improved significantly (p = 0.008), and reductions in pain were noted for the neck (p = 0.001), wrist (p = 0.0005), and upper back (p = 0.001). Conclusions: This workplace intervention program proved effective both in reducing pain in various body areas and reducing presenteeism, and improved physical and mental health were observed in the intervention groups while absenteeism remained unchanged. [ABSTRACT FROM AUTHOR]

Objective. Mortuary attendants in Ghana face various occupational health and safety hazards, including ergonomic and psychosocial factors, which can impact both their well-being and the quality of service provided. However, there is limited knowledge about the specific ergonomic hazards they encounter. This study aims to investigate and understand these ergonomic hazards at selected hospital mortuaries in Ghana. Methods. The study used a qualitative approach to investigate the experiences of 19 mortuary attendants, selected through purposive sampling. Semi-structured interviews were conducted and recorded digitally, and focused on participants’ demographics, work experiences, challenges and coping strategies. The collected data were transcribed verbatim and analyzed thematically. Results. The study found that mortuary attendants face ergonomic hazards, leading to physical discomfort, sleep problems and the need for sick leave and self-medication. Poor working conditions were a major risk factor. Conclusion. The study recommends the immediate inclusion of fundamental occupational health and safety practices into the informal apprenticeship training for mortuary attendants. Additionally, the study underscores the importance of providing necessary equipment to mortuary attendants to reduce or eliminate ergonomic hazards in their work environments. [ABSTRACT FROM AUTHOR]

Background: Electroencephalography (EEG) is a promising tool for identifying the physiological biomarkers of fibromyalgia (FM). Evidence suggests differences in power band and density between individuals with FM and healthy controls. EEG changes appear to be associated with pain intensity; however, their relationship with the quality of pain has not been examined. We aimed to investigate whether abnormal EEG in the frontal and central points of the 10–20 EEG system in individuals with FM is associated with pain's sensory-discriminative and affective-motivational dimensions. The association between EEG and the two dimensions of emotional disorders (depression and anxiety) was also investigated. Methods: In this cross-sectional pilot study, pain experience (pain rating index [PRI]) and two dimensions of emotional disorders (depression and anxiety) were assessed using the McGill Pain Questionnaire (PRI-sensory and PRI-affective) and Hospital Anxiety and Depression Scale (HADS), respectively. In quantitative EEG analysis, the relative spectral power of each frequency band (delta, theta, alpha, and beta) was identified in the frontal and central points during rest. Results: A negative correlation was found between the relative spectral power for the delta bands in the frontal (r= -0.656; p = 0.028) and central points (r= -0.624; p = 0.040) and the PRI-affective scores. A positive correlation was found between the alpha bands in the frontal (r = 0.642; p = 0.033) and central points (r = 0.642; p = 0.033) and the PRI-affective scores. A negative correlation between the delta bands in the central points and the anxiety subscale of the HADS (r = -0.648; p = 0.031) was detected. Conclusion: The affective-motivational dimension of pain and mood disorders may be related to abnormal patterns of electrical activity in patients with FM. Trial registration: Retrospectively registered on ClinicalTrials.gov (NCT05962658). [ABSTRACT FROM AUTHOR]

Background: The COVID-19 pandemic has led to the broad acceptance of distance education (DE), with university professors and students conducting the teaching–learning process remotely from their homes. The propose of this study to investigate the prevalence of musculoskeletal disorders (MSDs) before and during the COVID-19 pandemic and identify risk factors associated with DE that may contribute to an increased incidence of these disorders among university professors. Methods: This cross-sectional analytical study took a comparative approach and involved 310 university professors in Iran. Data were gathered using an online questionnaire. Initially, demographic and occupational information of the professors, hours of physical activity, and hours spent using electronic devices were recorded. Participants were then asked to report MSDs in various body areas throughout the previous year and the previous seven days. Finally, MSDs risk factors such as workstation ergonomics during computer, laptop, smartphone, and tablet use, as well as working postures during online teaching or offline content development during the COVID-19 pandemic, were examined. Results: The majority of the participants were male (66.13%), with a PhD (46.77%) and a faculty member position (74.2%). On average, the use of computers and laptops increased by 2.67 h and 2.72 h, respectively, during the pandemic compared to before the pandemic. This increase was statistically significant (P < 0.001). MSDs incidence increased significantly before and during the COVID pandemic was observed in the areas of the neck, shoulders, lower and upper back, arms, forearms, wrists and fingers (P < 0.05). The highest cumulative incidence (Cin) of MSDs was related to the neck (Cin = 24.20%), upper back (Cin = 21.29%), low back (Cin = 18.06%) and fingers (Cin = 16.13%). The prevalence of MSDs during the COVID pandemic was significantly associated with employment status (P = 0.042), work experience (P = 0.016), age (P = 0.027), increase in the use of computers/ laptops (P < 0.001), decrease of the smartphone/tablet distance from the body (P = 0.047), workstation (smartphone-tablet, computer, laptop) (P < 0.05), head position (smartphone-tablet) (P = 0.029), display height (computer/laptop) (P = 0.045) and physical activity (P = 0.006). Conclusions: It appears that the increased duration of smartphone, computer, and laptop use, combined with decreased physical activity and detrimental changes in ergonomic conditions of workstations during the quarantine period caused by the COVID-19 pandemic, has resulted in a shift from dynamic to static tasks and an increase in the prevalence and incidence of MSDs among university professors. [ABSTRACT FROM AUTHOR]

BACKGROUND: The widespread use of recreational drugs has raised concerns regarding their effects on various organ systems. The use of cannabis and opioids in chronic pain management increases their prevalence among patients with musculoskeletal conditions whose bone health may already be compromised. This article aims to review the pathophysiology and toxic effects of recreational drug use on musculoskeletal health to establish appropriate pain regimens for patients with substance use. METHODS: Medical literature published from 1970 until 2022 was identified utilizing MEDLINE/PubMed and the Cochrane Library. In addition to the databases, references were obtained through the use of reference lists of published articles identified by the aforementioned databases. The initial search terms included opioids, inhalants, hallucinogens, cannabis, stimulants, and bone health. There were no methodological limitations in relation to the initial acquisition and analysis of data. RESULTS: A total of 55 research articles were included in this review. Cannabis, stimulants, opioids, and inhalants impact bone maintenance, specifically osteoblast and osteoclast activity, as well as impede hormone production. These substances inhibit bone remodeling and development, manifesting as lower bone mineral density and increased fracture risk in chronic users. CONCLUSION: Although the current literature suggests a deleterious effect of recreational drugs on bone health and musculoskeletal disease, further research is warranted to evaluate the clinical effects of long-term substance use. The evaluation of such effects will aid in establishing appropriate pain regimens, as well as appropriate screening and treatment plans for recreational drug users. [ABSTRACT FROM AUTHOR]

Background: Advanced practice physiotherapy (APP) models of care are promising to alleviate pressure in emergency departments (EDs) where physiotherapists' new roles include being a first‐contact practitioner and leading the overall care and management of patients with minor musculoskeletal disorders (MSKDs) to alleviate ED physicians' caseload. Purpose: To explore patients' acceptability, experience, satisfaction, and perception of a new APP‐led model of care in the ED. Methods: Patients presenting to the ED with a minor MSKD and who agreed to participate in a multicenter, pan‐Canadian randomized controlled trial assessing the efficacy and costs of an APP model of care were invited to participate in this qualitative study. Semi‐structured interviews were performed to identify themes related to their experiences with this model. Verbatim transcripts were coded and analysed using an inductive thematic analysis. Results: 11 patients participated and three themes were identified: 1‐ They were satisfied with the care received within the model; 2‐ They found APPs to have the appropriate skill set to manage MSKDs and to assume medical‐delegated tasks; 3‐ Timely access to care was a key factor in the acceptability of this model and participants believed physiotherapists were appropriate first‐contact practitioners. One participant proposed that the APP model of care should also offer follow‐up care. Conclusion: Participants had a positive experience of care in this new model. These results support the implementation of APP models of care in EDs as the participants appear receptive to new roles for APPs. [ABSTRACT FROM AUTHOR]

• Understanding the costs and benefits of exoskeleton is a major facilitator. • Incompatibility of exoskeletons with other devices can be a major barrier. • Exoskeletons require adjustments to suit the construction industry. • Training and communication plans are essential in exoskeleton implementation. Introduction: Active back-support exoskeletons are gaining more awareness as a solution to the prevalence of work-related musculoskeletal disorders in the construction industry. This study aims to understand the factors that influence the adoption of active back-support exoskeletons in the construction industry. Method: A literature review was conducted to gather relevant adoption factors related to exoskeleton implementation. Building on the TOE (Technology, Organization, and Environment) framework, two rounds of the survey via the Delphi technique were administered with 13 qualified industry professionals to determine the most important adoption factors using the relative importance index. Through semi-structured interviews, the professionals expressed their perspectives on the impact of active back-support exoskeletons on the construction industry. Results: Important factors included 18 facilitators and 21 barriers. The impact of the exoskeletons in the construction industry was categorized into expected benefits, barriers, solutions, adjustment to technology, implementation, and applicable tasks. Conclusions: This study identified the factors to be considered in the adoption and implementation of active back-support exoskeletons in the construction industry from the perspective of stakeholders. The study also elucidates the impact of active exoskeletons on construction organizations and the broader environment. Practical Applications : This study provides useful guidance to construction companies interested in adopting active back-support exoskeletons. Our results will also help manufacturers of active back-support exoskeletons to understand the functional requirements and adjustments required for utilization in the construction industry. Lastly, the study expands the application of the TOE framework to the adoption of active back-support exoskeletons in the construction industry. [ABSTRACT FROM AUTHOR]

The healthcare industry is one of the main industries with a high prevalence of musculoskeletal disorders (MSDs). Surgical practice mostly involves repetitive tasks with fine motor control, precise motions, high levels of mental concentration, and close visual focus. This cross-sectional study aimed to define the prevalence and risk factors of MSDs and visual problems among physicians. One hundred surgical physicians and one hundred medical physicians were involved in the study. Both groups underwent assessment of socio-demographic and occupational history, alongside evaluation for musculoskeletal and visual problems. The study revealed a significantly higher prevalence of MSDs, particularly neck and back pain, as well as blurred near vision and eye dryness, among surgical physicians compared to medical physicians. Risk factors for these conditions included long working hours (≥30 h/week) in clinics or operating rooms, as well as using endoscopes and microscopes/loupes during surgery. In conclusion, MSDs and visual problems were prevalent among physicians, particularly surgical physicians. Integrating ergonomic principles across all domains of healthcare and promoting healthcare worker awareness through training and intervention programs are crucial steps in addressing these issues. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To evaluate the effect of a workplace injury prevention and wellness program compared to no intervention (control) on musicians' playing-related musculoskeletal pain intensity. The hypothesis was that musicians who completed the program would have a greater reduction in pain intensity than the control group. DESIGN: Pragmatic parallel randomized controlled trial. METHODS: Sixty-five orchestra musicians were recruited and completed patient-reported outcome measures (primary outcome: pain intensity over 11 months, using the Musculoskeletal Pain Intensity and Interference Questionnaire for Musicians; range: 0-40; lower is better) at baseline, 14 weeks (T1), and 11 months (T2). Following baseline assessment, participants were randomly assigned to the intervention (n = 33) or control (n = 32) groups, stratified by instrument and pain prevalence. The intervention group received a 14-week injury prevention and wellness program including education and exercise; the control group received no intervention. RESULTS: Pain intensity means (standard deviation) were 7.8 (6.2), 8.0 (7.5), and 8.6 (5.7) in the control group, and 9.0 (6.6), 5.0 (4.2), and 6.7 (6.6) in the intervention group at T0, T1, and T2, respectively. Using intention-to-treat analyses (3 dropouts, n = 65 analyzed), between-group differences in pain intensity (95% confidence interval) were T1-T0: -4.2 (-7.5, -0.9); T2-T0: -3.7 (-7.1, -0.3), type III (overall) P = .03, favoring the intervention group. No adverse events were reported. CONCLUSION: A workplace injury prevention and wellness program may have a clinically meaningful effect on reducing orchestra musicians' pain intensity. [ABSTRACT FROM AUTHOR]

To investigate whether transversus abdominis activation (TrA), hip strength, and movement competency are associated with the incidence of musculoskeletal disorder episodes (MDEs) in dancers when controlling for confounding variables. The secondary objectives were to determine if there were differences between professional and preprofessional dancers for the aforementioned factors, as well as to determine if there were differences in TrA activation and hip strength between the dominant and non-dominant sides. Prospective cohort study. 118 dancers were recruited. The independent variables were collected at the beginning of the dance season: 1) TrA activation, 2) hip strength, and 3) movement competency. To assess the development of MDEs, a weekly electronic diary was used over a 38-week period. MDEs were compiled for each dancer's whole body and subdivided into total musculoskeletal disorder episodes (all body parts) and lower quadrant musculoskeletal disorder episodes (lower limb and lower back). Lower TrA, as well as higher hip abductor and external rotator strength, were associated with a lower incidence of MDEs. TrA activation (β = 0.260, p = 0.023) and hip external rotator strength (β = −0.537, p = 0.002) could significantly explain 25.4% of the variance of total MDEs, as well as 20.9% of the variance of lower quadrant musculoskeletal disorder episodes (β = 0.272, p = 0.016; β = −0.459, p = 0.011). No significant associations were found between movement competency and MDEs. Higher hip strength could be a protective factor for MDEs among dancers. Further studies are needed to better understand the involvement of the transversus abdominis in MDEs. • Higher transversus abdominis activation in a supine position is associated with musculoskeletal disorders in dancers. • Lower hip strength is associated with musculoskeletal disorders in dancers. • Pre-season evaluation of ballet or contemporary dancers should include these factors. • Movement competency has not been associated with musculoskeletal disorders in dancers. [ABSTRACT FROM AUTHOR]

This study aims to design an ergonomic welding workstation to reduce the risk of Musculoskeletal Disorders (MSDs) in welding workers at PT. Sinar Bharata Perkasa. The background of this study is the high prevalence of MSDs in welding workers due to unergonomic work posture. The methods used include posture analysis using Rapid Upper Limb Assessment (RULA) and Rapid Entire Body Assessment (REBA), as well as anthropometric calculations to design workstations that suit the physical condition of workers. Data collection was carried out through the Nordic Body Map (NBM) questionnaire and posture measurements before and after the design improvement. The results showed that the new workstation design was able to significantly reduce the risk of MSDs, with a decrease in the RULA score from 6 to 3 and the REBA score from 8 to 3. In conclusion, this new workstation design has the potential to improve the health and productivity of welding workers at PT. Sinar Bharata Perkasa. [ABSTRACT FROM AUTHOR]

Purpose: Firefighters perform dangerous and physically demanding work, increasing their risk of musculoskeletal injuries that can lead to work absences. Return-to-work procedures can help firefighters return-to-work sooner and safely. The purpose of this study was to explore what firefighters understand about return-to-work procedures in their workplaces, and what firefighters believe the facilitators and barriers to return-to-work are. Methods: Thirty-eight Canadian career firefighters were recruited for semi-structured interviews. Qualitative descriptive methods were used to analyze the transcripts. Two researchers performed the inductive coding and thematic analysis. Results: Five themes were identified: 1. Variation in the return-to-work process knowledge among firefighters based on their experiences; 2. Accessible medical resources and treatments to support injury recovery; 3. Light duties must be meaningful and suitable; 4. Pressures to return-to-work too soon may lead to negative consequences; and 5. Heavy physical demands of firefighting may become a barrier for return-to-work. 'Factors affecting RTW depended on personal experiences and context' was the overarching theme identified, as many reported facilitators for return-to-work were also reported as barriers in different contexts. There was a variation in the experiences and understanding of return-to-work. Conclusion: There is a lack of knowledge of the return-to-work processes. Firefighters require access to clear return-to-work policies and procedures and treatments that are targeted to firefighting duties to support recovery from injuries and regain physical abilities after an injury. Firefighters must be able to perform all essential duties before returning to firefighting work, as returning to work too soon can lead to further injury. [ABSTRACT FROM AUTHOR]

Purpose: Musculoskeletal disorders (MSDs) are common worldwide and gender differences exist in terms of prevalence and disability. MSDs are a leading cause of sick leave and physical work exposures. To assess the association between physical exposures assessed by the gender-specific CONSTANCES Job-Exposure Matrix (JEM) and musculoskeletal pain in six areas: neck pain, shoulder pain, elbow/arm pain, hand/wrist pain, low back pain, knee/leg pain; and to compare the results with those obtained using the non-gendered CONSTANCES JEM and with individual self-report exposures. Methods: We included 48,736 male and 63,326 female workers from the CONSTANCES cohort (France). The association between 27 physical exposures and musculoskeletal self-reported pain in six body areas was assessed using logistic regression. We conducted the analysis with three types of exposures: (1) individual self-reported exposures; (2) gender-specific CONSTANCES JEM; (3) non-gendered CONSTANCES JEM, and adjusted for age and Body Mass Index (BMI). Analyses were stratified by gender. Results: The associations to the gender-specific and non-gendered JEM were similar. The odds ratios using individual self-reported exposures were comparable to the JEM-based associations, with the exceptions of the exposures 'change tasks', 'rest eyes' and 'reach behind'. In some comparisons, there were differences in the direction and/or significance of effects between genders (regardless of whether the JEM used was gender-specific or not). Conclusion: The gender-specific and non-gendered JEMs gave similar results, hence, developing physical work exposures JEMs that are gender-specific may not be essential. However, when predicting musculoskeletal pain, it seems relevant to stratify the analysis by gender. [ABSTRACT FROM AUTHOR]

Lobstering industry workers are known to have poor overall health and low safety records, but there is still a gap in information concerning Canadian lobster fishers. This study aimed to report occupational health and safety characteristics of an Atlantic Canada community of lobster fishers and to assess differences between captains and deckhands. Twenty-eight participants (10 captains, 18 deckhands) were questioned and self-reported on lifestyle, general health status, work-related musculoskeletal disorders and traumatic injuries. The data collected reveal both groups' high prevalence of cardiometabolic and musculoskeletal health issues. Captains reported more occupational exposition and health issues, and showed poorer lifestyle habits than deckhands. Fishers reported potential solutions to reduce occupational risks, presented as three types: lifestyle, working behaviours and leadership. This study evaluated a community of Canadian lobster fishers regarding their occupational health and safety. Potential avenues for mitigating occupational risk specific to this community will nurture future implementation. [ABSTRACT FROM AUTHOR]

This study analyzes the relationship between work fatigue and musculoskeletal disorders in gas station operators in Pontianak City. This study used with a cross-sectional approach. The sample consists of 150 gas station workers. Data collection was carried out by observing and interviewing. Respondents characteristics were recorded through interviews using a questionnaire. Data on work fatigue were obtained by interviews using the IFRC questionnaire and musculoskeletal data using the Nordic Body Map questionnaire. The study results show that 50% of workers experience a high level of work fatigue, and 26% of workers experience severe musculoskeletal disorders. There is a significant relationship between work fatigue and musculoskeletal diseases (p = 0.001). The study established the need for intervention as a preventive measure by providing sufficient rest time, stretching, setting work shifts, improving ergonomic work positions for gas station operators, and controlling the work environment through environmental improvement and monitoring and using personal protective equipment. [ABSTRACT FROM AUTHOR]

Objectives. This study aimed to investigate the effects of academician's demographic characteristics and computer usage habits on upper limb musculoskeletal disorders (MSDs) and function. Methods. A cross-sectional observational study was conducted with 100 academicians. Data were collected using questionnaires, which included the patient-rated wrist evaluation questionnaire – Turkish version (PRWE-T), the Cornell musculoskeletal discomfort questionnaire – Turkish version (CMDQ-T), the upper extremity functional index – Turkish version (UEFI-T), demographic characteristics and average daily computer usage time. Results. A low-level significant correlation was found between the age of the individuals and the CMDQ-T forearm (p = 0.044; r = 0.202) and CMDQ-T wrist (p = 0.001; r = 0.337) scores. Women had higher CMDQ-T neck scores and lower UEFI-T scores than men (p < 0.05). Academicians who used computers for 6 h a day or more had higher PRWE-T and CMDQ-T neck, shoulder, upper arm and forearm scores, and had a lower UEFI-T score (p < 0.05). Conclusion. Neck, shoulder, upper arm and forearm symptoms were higher and upper extremity function was impaired in academicians who used computers for 6 h a day or more. Besides, gender and age were associated with upper limb MSDs and function, but occupation duration did not affect those outcomes in academicians. [ABSTRACT FROM AUTHOR]

BACKGROUND: Pushing is a typical workplace activity that may result in musculoskeletal disorders (MSDs). A convenient method of assessing the risk of MSDs is to determine the association between the force applied and the subjective rating of force exertion. OBJECTIVES: This study aimed to determine the relationship between the subjective rating of force exertion and the force applied to both a fixed and a movable handle. It also aimed to confirm that the participants could apply a higher one-handed push force at shoulder height than at elbow height. METHODS: A one-handed pushing experiment was conducted. In the push-to-scale session, the participants pushed a handle fixed on a rig on four levels on the CR-10 scale. The push force was measured. In the force-rating session, the participants rated their force exertions when pushing a movable handle with metal blocks suspended on the two sides. The subjective ratings on the CR-10 were recorded. RESULTS: The one-handed push force at shoulder height was significantly higher than that at elbow height. More effort was needed to push on a movable handle than a fixed one. Two regression models were established to describe the relationship between the push force and the subjective ratings of pushing for each of the fixed and movable handles, respectively. The correlation coefficient results showed that these models are adequate to describe the relationship between the one-handed push force and the ratings of the CR-10 scale. CONCLUSION: Participants applied a higher one-handed push force at shoulder height than at elbow height was confirmed. Participants needed more efforts to push the movable handle under the same CR-10 level than the fixed handle. The predictive models developed in this study may be used to estimate the push force for one-handed pushing tasks when assessing the risk of MSDs. [ABSTRACT FROM AUTHOR]

BACKGROUND: Work-related musculoskeletal disorders (WRMSDs) is a multi-factorial disorder in most occupational setting and it has increased significantly in recent years. OBJECTIVE: This study aimed to investigate the relationship between physical, cognitive, and environmental factors of ergonomics with the prevalence of WRMSDs in a car-parts manufacturing industry METHODS: This cross-sectional study was performed among 220 workers in a milling unit of a car parts manufacturing company in 2021-2022. The prevalence of WRMSDs was assessed using the Extended Version of the Nordic Musculoskeletal Questionnaire. Noise exposure was evaluated using dosimetry method. Mental and physical workload were evaluated by the NASA-TLX and key index methods (KIM-MHO and KIM-LHC), respectively. Data analysis was performed using SPSS version 25.0. RESULTS: The subjects' mean age and work experience were 36.3±6.5 and 8.35±6.41 years, respectively. Eighty-five percent of the subjects reported WRMSDs in at least one area of the body. The results of mental workload assessment revealed a high workload mean range (73.23±14.89) in all of the subjects. Mean score of KIM-LHC and KIM-MHO were 738.18±336.42 and 201.86±36.41, respectively with odds ratio of 1.32 for KIM-LHC in creating the WRMSDs. There was a significant relationship between the noise exposure, mental and physical workload and the prevalence of WRMSDs (p-value < 0.05). CONCLUSION: The results of the present study revealed that environmental, physical and cognitive factors can simultaneously be effective in the prevalence of WRMSDs. Therefore, performing effective control measures requires comprehensive attention to physical, environmental, and cognitive ergonomics in the algorithm of ergonomics management in the workplace. [ABSTRACT FROM AUTHOR]

The field of ergonomics has been significantly shaped by the advent of evolving technologies linked to new industrial paradigms, often referred to as Industry 4.0 (I4.0) and, more recently, Industry 5.0 (I5.0). Consequently, several studies have reviewed the integration of advanced technologies for improved ergonomics in different industry sectors. However, studies often evaluate specific technologies, such as extended reality (XR), wearables, artificial intelligence (AI), and collaborative robot (cobot), and their advantages and problems. In this sense, there is a lack of research exploring the state of the art of I4.0 and I5.0 virtual and digital technologies in evaluating work-related biomechanical risks. Addressing this research gap, this study presents a comprehensive review of 24 commercial tools and 10 academic studies focusing on work-related biomechanical risk assessment using digital and virtual technologies. The analysis reveals that AI and digital human modelling (DHM) are the most commonly utilised technologies in commercial tools, followed by motion capture (MoCap) and virtual reality (VR). Discrepancies were found between commercial tools and academic studies. However, the study acknowledges limitations, including potential biases in sample selection and search methodology. Future research directions include enhancing transparency in commercial tool validation processes, examining the broader impact of emerging technologies on ergonomics, and considering human-centred design principles in technology integration. These findings contribute to a deeper understanding of the evolving landscape of biomechanical risk assessment. [ABSTRACT FROM AUTHOR]

Test methods that use pushing forces to evaluate the maximal load capacities of carts in design standards require a flat, smooth and horizontal steel plate and thus do not take into account the real conditions of work. Resistive forces of a single wheel of a cart in a uniform rectilinear motion were measured using a unique test bench with five loads. Forty-four wheels were tested (varying diameters, treads and bearings) with one steel plate and four resilient floor coverings. Based on a linear mixed model, all the following results were significant (p < 0.05). Resistive forces were increased linearly with the load and depended on the characteristics of both the wheel and floor. These forces decreased as the diameter increased. They were important for wheels with sleeve bearings but decreased for cone ball bearings and precision ball bearings. Resistive forces depended on the material of the tread and were higher for solid rubber treads. In contrast, the hardness of the tread had little effect. Resistive forces strongly depended on the hardness of the base foam of resilient floor coverings: the softer the base foam, the higher the resistive forces. Test methods in design standards should be reviewed, using corrective forces based on these present results, to prevent musculoskeletal disorders. [ABSTRACT FROM AUTHOR]

This study aims to enhance the effectiveness of the preparation process and the performance of wheelchair users in international billiard competitions through modified equipment. The research methods include analysis and synthesis of the scientific and methodological literature, sociological research methods (questionnaires), expert assessment methods, pedagogical research methods (observation, testing, experimentation), and methods of mathematical statistics. The results of our study are significant: Implementing our developed training program for billiards players with musculoskeletal disorders, utilizing the modified equipment (special mechanical bridge and straps for cue fixation during shots) we created in a pedagogical experiment, demonstrated a probable improvement of 36% in the technical and tactical preparedness of the athletes compared to previous years. This led to a 33% increase in players from the Ukrainian team's competition performance at the national and European Pool Championships (wheelchair division). In conclusion, implementing our developed training program, accompanied by specialized auxiliary equipment, demonstrated promising results in a pedagogical experiment. These findings underscore the potential of the modified equipment and tailored training programs to optimize sports training for individuals with musculoskeletal impairments in adaptive billiards, contributing to the continued humanization of the sport and offering an effective preparation process for the athletes. [ABSTRACT FROM AUTHOR]

Abstract Background Musculoskeletal injuries are noticeably high among the nursing fraternity, with lower back pain (LBP) being the most prevalent. Therefore, this study aimed to map evidence on the burden of occupational musculoskeletal disorders (MSD) among nurses in sub-Saharan Africa (SSA). Methods This scoping review was guided by Arksey and O’Malley’s framework. We conducted a comprehensive literature search with no date limit from the following databases: Science Direct, PubMed, Sabinet (SA ePublications), EBSCOhost platform, World Health Organization (WHO) Library, Google Scholar, SCOPUS, Taylor and Francis, and WorldCat Academic Search with full text for published studies. The search took place from May 2022 to December 2022. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was used for reporting the search results, and a thematic content analysis was used to present the emerging themes from the included studies. Results A total of 16,714 studies were identified after the database search. Only 29 studies met the inclusion criteria after full-article screening and were included for data extraction. The studies reported a total of 6343 participants from different regions in SSA. The 29 included studies showed evidence on the prevalence of MSD, associated risk factors of MSD and LBP among nurses in SSA with some recommendations on how to reduce the prevalence of MSD among nurses. Conclusion The study findings reveal that there is a high prevalence of MSD among nurses, especially LBP. The etiology of MSD among nurses is multifactorial, and multifaceted strategies to address MSD are recommended. Further research is recommended to explore strategies that can be used to curb the high prevalence of MSD among nurses.

Abstract Background Despite increases in musculoskeletal disorders (MSD) in Canada, evidence suggests utilization of chiropractic services has remained relatively stable over time. Understanding the extent to which chiropractors are consulted and factors associated with their utilization may suggest factors related to accessing care. We assessed the change in prevalence and characteristics of Canadians seeking chiropractic care across two time periods 2001–2010 and 2015–2018. Methods We used national cross-sectional data from seven cycles of the Canadian Community Health Survey between 2001 and 2018. The survey included Canadians aged 12 years and older living in private dwellings in all provinces and territories. National annual weighted prevalence and age-standardized weighted prevalence (and 95% confidence intervals) of chiropractic utilization were calculated. We calculated prevalence of chiropractic utilization stratified by demographic, socioeconomic, lifestyle and health-related variables. Crude linear trends and change in prevalence from 2001 to 2010 were assessed using linear regression models. Results The national annual prevalence of Canadians consulting a chiropractor in the previous 12 months slightly increased from 11.0% (95% CI 10.8, 11.3) in 2001 to 11.4% (95%CI 11.1, 11.7) in 2010, and in those reporting receiving regular health care from a chiropractor from 7.5% (95%CI 7.2, 7.7) in 2015 to 7.9% (95%CI 7.7, 8.2) in 2018. Prevalence of utilization varied by province, highest in the Western provinces but lowest in Atlantic provinces. The age-specific prevalence of chiropractic utilization was highest in those aged 35–49 years and remained stable over time, except for slight increase in those aged 65–79 years. A higher percentage of Canadians identifying as white, Canadian-born, in the highest quintile of household income, overweight, physically active and in excellent health reported seeking chiropractic services. The most common reported chronic conditions measured in the survey among Canadians consulting chiropractors were chronic back problems, arthritis, fibromyalgia and headaches. Conclusion The national prevalence of utilization of chiropractic services among Canadians slightly increased over time but varied by province and respondents’ socioeconomic and health characteristics. Chronic back problems were the most common reported chronic condition. This comprehensive population-based study on chiropractic utilization in Canada can be used to inform decisions concerning health human resources and access to rehabilitation care for MSD.

Abstract Background Intensive care units (ICUs) are one of the high-risk working areas in terms of musculoskeletal disability and ergonomic risks including the environment and posture factors. Correct posture technique is often ignored by nurses working in these units. This study was conducted to determine the effect of posture regulation training on work-related musculoskeletal disorders, fatigue level and job performance in nurses working in ICUs. Methods This quasi-experimental study with one-group pretest-posttest design included 64 intensive care nurses. The nurses received posture regulation training in three different sessions. The post-test was administered four months after the posture regulation training. Results The nurses reported to frequently have aches, pains and discomfort in the neck, upper back and lumbar regions. After the posture regulation training, their level of pain, ache and discomfort in the neck, right and left shoulder, upper back, lower back and right/left foot areas decreased significantly (p

Abstract Introduction The job of sonographers exposes them to numerous ergonomic risk factors, making the sonography profession one of the high-risk job groups vulnerable to musculoskeletal disorders (MSDs). The present systematic review and meta-analysis specifically examined the prevalence of MSDs among sonographers. Materials and methods The present review study was carried out in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. The protocol of the study was registered in the international prospective register of systematic review (PROSPERO) with the code CRD42024507972. Searches were conducted in databases including PubMed, Scopus, Web of Science, Science Direct, SID, ISC, and Google Scholar, without imposing a time limit until February 7th, 2024. The random-effects model was employed for meta-analysis, and the I2 index was used to assess heterogeneity among studies. Finally, data analysis was performed using STATA (version 14). Results Based on the search in different databases, a total of 4367 articles were identified. Finally, after screening, selecting, and quality evaluation of the studies, 30 studies were considered for meta-analysis in which 13,916 sonographers were examined. According to the results of the meta-analysis, the overall prevalence of MSDs among sonographers was reported as 75.80% (95% CI: 65.37–86.23, I2 = 99.7%, P

Abstract Background Pain attributed to musculoskeletal disorders are a significant hinderance to work ability and economic growth, especially in developing countries. Quality of life and lived experience of workers with musculoskeletal disorders have not been explored enough to determine whether person-centred care is provided. There is a wealth of evidence for using the biomedical approach in the management of workers with musculoskeletal disorders, which has proved ineffective in reducing absenteeism and symptoms experienced by workers. The purpose of this study was to explore the lived experience of workers seeking care for musculoskeletal disorders and how their pain attitudes and beliefs influenced their experience. Methods A qualitative approach with thematic analysis was used. Purposive sampling was used to recruit six participants for semi-structured interviews. All participants were either experiencing pain attributed to a musculoskeletal disorder or had received care for a musculoskeletal disorder. Results Pain attitudes and beliefs of workers with a musculoskeletal disorder and healthcare professionals greatly influenced the care and recovery process of musculoskeletal disorders. There is a primary biomedical lens informing care of workers with musculoskeletal disorders received. Workers expect healthcare professionals to explore their concerns further, but the focus of care for most participants was their presenting complaint. There is also a need for the autonomy of workers to be preserved, and communication between healthcare professionals and workers with musculoskeletal disorders needs to improve. Conclusions Many stakeholders are involved in the recovery process from musculoskeletal disorders. There is a need for a biopsychosocial informed practice to improve return-to-work (RTW) in workers with musculoskeletal disorders. Change is needed at all healthcare system levels to reduce the negative experiences of workers and maladaptive pain beliefs that is associated with persisting symptoms and extended absenteeism.

The musculoskeletal system, which is vital for movement, support, and protection, can be impaired by disorders such as osteoporosis, osteoarthritis, and muscular dystrophy. This review focuses on the advances in tissue engineering and regenerative medicine, specifically aimed at alleviating these disorders. It explores the roles of cell therapy, particularly Mesenchymal Stem Cells (MSCs) and Adipose-Derived Stem Cells (ADSCs), biomaterials, and biomolecules/external stimulations in fostering bone and muscle regeneration. The current research underscores the potential of MSCs and ADSCs despite the persistent challenges of cell scarcity, inconsistent outcomes, and safety concerns. Moreover, integrating exogenous materials such as scaffolds and external stimuli like electrical stimulation and growth factors shows promise in enhancing musculoskeletal regeneration. This review emphasizes the need for comprehensive studies and adopting innovative techniques together to refine and advance these multi-therapeutic strategies, ultimately benefiting patients with musculoskeletal disorders.