Ergonomics in ENT Practice.

The term Ergonomics is derived from two Greek words "Ergos" meaning work and "nomos" meaning laws. So, Ergonomics in simple term means "laws of work". It actually concerns with optimizing the relations between a worker and his work of environment. Ergonomics is a science that studies workplaces with the aim to optimise the interaction between the worker, equipment, task and the environment (Campbell in Ergonomics in otorhinolaryngology. Ent and audiology news, 2024) Workplace ergonomics is a poorly understood subject when it comes to medical professionals. Musculo- skeletal disorders (MSD) are one of the commonest occupational health problem for surgeons. Though, Ergonomics apply to every surgeon/medical professional, this article will in specifically discuss the importance of understanding ergonomics for ENT (otolaryngologists) surgeons.

Work-related musculoskeletal disorder and health risk behaviors in market-vendors: a mixed-methods study.

Background: Work-related musculoskeletal disorders (WRMDs) are frequently observed among market vendors, and engaging in health risk behaviors can exacerbate these issues, leading to various health problems. Common health risk behaviors among market vendors include alcohol consumption and insufficient physical activity. However, there is currently a lack of research examining the prevalence of WRMDs and health risk behaviors among market vendors in Bangkok. Furthermore, the emerging trend of drug misuse within this group remains poorly understood. This study aims to explore the prevalence of muscle pain and flexibility issues and assess health risk behaviors, including alcohol consumption, inadequate exercise, and drug misuse, among market vendors. Methods: A mixed-method study was undertaken among 213 market vendors in Bangkok. Data collection utilized direct observation techniques, questionnaires, and muscle flexibility tests. Qualitative data were elucidated and showcased through textual descriptions and quotations. Quantitative data were analyzed using descriptive statistics to present numerical and percentage values. Results: Qualitative findings revealed that market vendors often engage in static muscular work and maintain awkward postures due to their job characteristics and workstation setups. Quantitatively, the right arm was the most common pain region (34.7%), followed by the left leg (31.0%), right leg (30.0%), and left arm (28.6%). Additionally, 64.3% of participants showed poor muscle flexibility. The study also found that 35% of market vendors resorted to alcohol and 11.7% to drug misuse to cope with fatigue and prevent adverse symptoms. Moreover, 68.5% of participants reported no regular exercise due to lack of time. Conclusion: The study highlights the prevalence of musculoskeletal issues among market vendors, largely attributed to static muscular work and awkward postures dictated by their job roles and workstation arrangements. The right arm emerged as the most commonly affected area, followed by the left leg, right leg, and left arm, with significant rates of reported pain. The research also points to a notable lack of muscle flexibility in a majority of vendors and a concerning tendency towards alcohol and drug misuse as coping mechanisms for fatigue and symptom management. Furthermore, a significant portion of the vendors do not participate in regular exercise, primarily due to time constraints. These findings can be used to implement health prevention programs within the market vendor group.

'Pain free if I ever will be': lived experience of workers seeking care for pain attributed to musculoskeletal disorders.

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.

Traditional Chinese Medicine treatment for postoperative axial symptoms of cervical spondylotic myelopathy: a systematic review.

BACKGROUND: Axial symptoms (AS) represent one of the primary complications after cervical spondylotic myelopathy (CSM) surgery. Traditional Chinese Medicine (TCM), as a complementary and alternative therapy, is widely used in the treatment of postoperative AS in CSM. However, it lacks standardised treatment protocols, uniform therapeutic criteria, assessment methods and a sufficiently in-depth understanding of its mechanisms of action. These shortcomings impact the credibility of TCM treatment in clinical practice. METHODS AND ANALYSIS: We will conduct comprehensive searches, both manual and electronic, on literature published up to 31 July 2024, and database searches will commence after the publication of this agreement, with an estimated commencement date of 1 October 2024 and the end date of 31 March 2025, without language restrictions. Key databases such as MEDLINE, PubMed, Embase, Web of Science, Cochrane Library, WHO International Clinical Trial Registration Platform, China National Knowledge Network, China Biomedical Literature Database, China Scientific Journal Database and Wanfang Database will be explored. In addition, we will include resources such as library journals and conference abstracts. After identifying and screening all randomised controlled trials focused on TCM for postoperative AS of CSM, the two investigators will conduct a meta-analysis of the included studies. The results will be summarised as the risk ratio for binary data and the standardised or weighted average difference for continuous data. ETHICS AND DISSEMINATION: Ethical approval is not required since this review does not involve individual patient data. The review's findings will provide clinicians with evidence on using TCM treatment for AS post-CSM surgery, disseminated through peer-reviewed publications or conferences. PROSPERO REGISTRATION NUMBER: CRD42024505160.

The effect of posture regulation training on musculoskeletal disorders, fatigue level and job performance in intensive care nurses.

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.

The Clinical Challenge of Identifying Postural Changes Associated with Musculoskeletal Disorders in a Population of Adolescents: The Evaluation of a Diagnostic Approach.

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.

Shoulder-assist exoskeleton effects on balance and muscle activity during a block-laying task on a simulated mast climber.

Interest in utilizing exoskeletons to mitigate the risks of musculoskeletal disorders (MSDs) among construction workers is growing, spurred by encouraging results in other industries. However, it is crucial to carefully examine their impact on workers' stability and balance before implementation. In this study, seven male participants lifted a 35-lb cinder block from a production table to a simulated wall at two heights-elbow and shoulder levels-using three different exoskeleton models on an unstable platform, where their balance and shoulder muscle activity were assessed. Balance-related parameters, included mean distance (MDIST), total excursion (EXCUR), and mean velocity (VEL) of the center of pressure, were derived from force plate data. Muscle activity in six shoulder and upper arm muscles was estimated using electromyography (EMG) data. The results indicated that wearing two of the exoskeletons significantly increased both total and medio-lateral (ML) MDIST compared to not wearing an exoskeleton. Wearing one of the exoskeletons significantly increased total and ML VEL and ML EXCUR. Although lifting level did not have a significant impact on the balance parameters, it did affect the muscle activity in most of the measured muscles. Moreover, only one exoskeleton significantly reduced the activity in a particular shoulder muscle compared to no exoskeleton use. In conclusion, the evaluated shoulder-assist exoskeletons showed limited benefits for preventing upper extremity MSDs and may negatively affect whole-body balance during a block-laying task on an unstable platform. These findings underscore the importance of comprehensive evaluations of balance and effectiveness prior to adopting exoskeletons in construction.

Exploring the Moderating Effect of Musculoskeletal Pain on Technostress-Induced Burnout: A Cross-Sectional Study of Bank Employees.

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.

Including the ergonomist's voice in integrating MSD prevention and psychological health and safety: Challenges, tools, and considerations.

The purpose of this study was to gather ergonomists' perspectives and experiences, describing current challenges and contextual considerations in risk assessment, exploring how ergonomists are currently integrating the multiple domains of ergonomics for MSD and/or psychological health and safety and highlighting key considerations in the design and format of future tools. In-depth, semi-structured interviews were conducted with twenty Canadian ergonomists to explore risk assessment tool use, favoured characteristics and format of tools, commonly addressed risk factors in their practice, and tools relating to both MSD prevention and psychological health and safety. The range of practitioner years of experience highlighted differing needs and approaches to the use and formatting of risk assessment tools. Practitioners reported using quantitative outcomes (levels of risk, values) from traditional physical tools complemented by a general observation of psychosocial or organizational factors. Though many respondents had not yet encountered the need for psychological injury assessment in their sectors it was identified as a quickly emerging area citing a need for valid and reliable tools. Practitioners noted a lack of available tools that integrated cognitive and psychosocial items presenting a future challenge for integrated tools that covered multiple ergonomic domains. Along with recommendations for future tool development, the authors reflect on the process of qualitative inquiry as an essential step in the risk assessment process. Future studies will be needed to develop and evaluate measurement properties of integrating psychosocial factors and their respective tools in traditional MSD assessment.

High Prevalence of Work-Related Musculoskeletal Disorders Among Dentists: A Cross-Sectional Study From Kerala, India.

BACKGROUND:  Literature on the prevalence of musculoskeletal disorders (MSD), work ability, and associated factors among dentists is limited. Therefore, this study aimed to determine the prevalence of MSD, work ability, and associated factors among dentists in Kerala, India. METHODS:  This cross-sectional study was conducted among 290 dentists (median age: 34 years, 47% male), selected from a list of dentists in a district of Kerala. Information on MSD and work ability were collected using a structured, pre-tested questionnaire administered both online and through direct interviews. Factors associated with MSD were analyzed using multivariable regression analysis. RESULTS:  The prevalence of MSD in the past 12 months was 86.9% (95% CI: 83.1 - 90.9), and in the past seven days was 42.4% (95% CI: 36.7 - 48.08). Among those reporting MSD in the last 12 months, 21.4% experienced it in two sites. Of the nine regions assessed, the neck was the most affected over the past 12 months, with 57.6% reporting discomfort, while the lower back was the most affected in the last seven days (21.4%). Work ability was rated as excellent by 24.5% of participants and good by 51.7%. In the regression analysis, no significant association was found between socioeconomic factors and MSD during either time period. However, bivariate analysis showed that dentists who were overweight and those aged 34 years or older reported significantly more knee-related MSD in the past seven days (p=0.033 and p=0.037, respectively). CONCLUSION:  Despite the high prevalence of MSD among dentists, more than three-fourths reported good or excellent work ability. Implementing mandatory ergonomic assessments and interventions in dental workplaces may help reduce MSD among dentists.

Impact of Complementary Health Approaches on Opioid Prescriptions Among Veterans with Musculoskeletal Disorders-A Retrospective Cohort Study.

To examine whether complementary and integrative health approaches mitigate opioid prescriptions for pain and whether the relationship differs by post-dramatic stress disorder (PTSD) diagnosis, we followed 1,993,455 Veterans with musculoskeletal disorders during 2005-2017 using Veterans Healthcare Administration electronic health records. Complementary and integrative health (CIH) approaches were defined as ≥1 primary care visits for meditation, Yoga, and acupuncture etc using natural language processing. Opioid prescriptions were ascertained from pharmacy dispensing records. A propensity score was estimated and used to match one control Veteran to each CIH recipient. Over the 2-year follow-up period after the index diagnosis, 140,902 (7.1%) Veterans received ≥ 1 modalities. Among the matched analytic sample (272,296 Veterans), the likelihood of dispensing opioid prescriptions was significantly lower for Veterans in the CIH group than their controls [adjusted hazard ratio (aHR), 0.45 (95% Confidence Intervals (CI): 0.44-0.46)]. The association did not differ between Veterans with [aHR: 0.46 (95% CI: 0.45-0.47)] and without [aHR: 0.44 (95% CI: 0.43-0.45)] PTSD. In sensitivity analyses, the exposure group had 3.82 (95% CI: 3.76-3.87) months longer restricted mean survival time to opioid initiation, 2% (95% CI: 4%-1%) lower morphine equivalent and 17% lower total days' supply (95% CI: 18%-16%). The relationship remains significant but was attenuated after eliminating waiting time for the exposure group (aHR, 0.63 (95% CI: 0.62-0.64)). These observations suggest that CIH approaches may help reduce opioid prescriptions for Veterans with musculoskeletal disorders and related pain. The impact of the timing of receiving such approaches warrants further investigation. PERSPECTIVE: This article presents a quasi-experimental investigation into potential benefit of complementary and integrative health approaches (CIH) on de-prescribing opioids. The findings may potentially help clinicians who are seeking non-pharmacological alternative options to manage patient pain and opioid dependence".

Prevention of Post-Traumatic Osteoarthritis in the Military: Relevance of OPTIKNEE and Osteoarthritis Action Alliance recommendations.

Musculoskeletal injury (MSKI) is the most common reason for short-term occupational limitation and subsequent medically related early departure from the military. MSKI-related medical discharge/separation occurs when service personnel are unable to perform their roles due to pain or functional limitations associated with long-term conditions, including osteoarthritis (OA). There is a clear link between traumatic knee injuries, such as anterior cruciate ligament or meniscal, and the development of post-traumatic OA (PTOA). Notably, PTOA is the leading cause of disability following combat injury. Primary injury prevention strategies exist within the military, with interventions focused on conditioning, physical health and leadership. However, not every injury can be prevented, and there is a need to develop secondary prevention to mitigate or reduce the risk of PTOA following an MSKI. Two international collaborative groups, OPTIKNEE and OA Action Alliance, recently produced rigorous evidence-based consensus statements for the secondary prevention of OA following a traumatic knee injury, including consensus definitions and clinical and research recommendations. These recommendations focus on patient-centred lifespan interventions to optimise joint health and prevent lost decades of care. This article aims to describe their relevance and applicability to the military population and outline some of the challenges associated with service life that need to be considered for successful integration into military care pathways and research studies.

Musculoskeletal disorders in emergency medical services personnel: a systematic review and meta-analysis.

OBJECTIVES: Emergency medical services personnel are frequently subjected to strenuous physical tasks, such as lifting and moving patients, as well as working in awkward postures. These activities can result in a variety of debilitating injuries, including musculoskeletal disorders (MSDs). As a result, this systematic review and meta-analysis study aimed to examine the frequency of MSDs among emergency medical services personnel. STUDY DESIGN: Systematic review and meta-analysis. METHODS: This systematic review and meta-analysis study was conducted based on the PRISMA guidelines. The protocol of this work is registered in PROSPERO with the code CRD42024506958. Searches were conducted without time limits in several databases including PubMed, Scopus, Web of Science, Science Direct, SID, ISC, and Google Scholar until February 12, 2024. The I2 index was used to assess heterogeneity, and random effects model was used for meta-analysis. Data were analyzed using STATA version 14. RESULTS: A total of 709 articles were obtained by initial search in the mentioned databases. Following a thorough screening and quality assessment, 27 articles were chosen for meta-analysis. The findings revealed that the overall prevalence of MSDs among emergency medical services personnel is 56.52% (95% CI: 35-78.04, I2 = 99.8%, P < 0.001) and the prevalence in different areas of the body are as follows: the low back (47.38%), upper back (35.15%), neck (31.19%), shoulder (30%), knee (27.07%), hand (20.70%), hip/thigh (19.48%), feet (19.11%), and elbow (17.36%). CONCLUSION: The prevalence of MSDs among emergency medical services personnel is very high. Considering the importance of the role of these employees and the specific risk factors of their jobs, it is recommended that periodic screening is prioritized. In addition, attention should be paid to the ergonomic evaluation of the work environment and the design of appropriate ergonomic interventions.

High-load strength training compared with standard care treatment in young adults with joint hypermobility and knee pain: study protocol for a randomised controlled trial (the HIPEr-Knee study).

INTRODUCTION: Patients with generalised joint hypermobility, including knee hypermobility (GJHk), often experience knee pain and are typically managed with low-intensity strength training and/or proprioceptive training as part of standard care. However, not all patients experience satisfactory outcomes. High-load strength training may offer additional benefits, such as increased muscle cross-sectional area, neural drive and tendon stiffness, which may reduce pain and improve active knee joint stability during movement tasks and daily activities. So far, no randomised controlled trials (RCTs) have compared high-load strength training with traditional treatment strategies (standard care) for this patient group. METHODS AND ANALYSIS: In this RCT, we aim to recruit patients with GJHk and knee pain from primary care physiotherapy clinics in the Region of Southern Denmark and via social media. Patients with competing injuries or experience with high-load strength training will be excluded. Patients will be randomised (1:1 ratio) to either 2 weekly sessions of high-load strength training or standard care for 12 weeks. The primary outcome is self-reported knee pain during an activity nominated by the patient as the most aggravating for their present knee pain measured using the Visual Analogue Scale for Nominated Activity (VASNA, 0-100; 0=no pain and 100=worst imaginable pain). This will be collected at baseline, 6 weeks, 12 weeks and 12 months. Secondary outcomes include self-reported knee function and adverse events (collected at baseline, 12 weeks and 12 months), objective measurements including a 5-repetition maximum single-leg press, proprioception and single-leg-hop for distance (collected at baseline and 12 weeks), and a range of other outcome measures such as fear of movement, tendon stiffness and global perceived effect. We aim to recruit 90 patients in total to detect a 10 mm group difference in the primary outcome with 80% power. ETHICS AND DISSEMINATION: This study was funded by Independent Research Fund Denmark (grant number 2034-00088B) on 14 June 2022; the Regional Committees on Health Research Ethics for Southern Denmark approved it (S-20230050) on 30 August 2023. The first recruitment site opened on 15 February 2024, and the final results will be submitted to a peer-reviewed journal to inform rehabilitation strategies for symptomatic GJHk.Protocol version 1, dated 4 July 2024. TRIAL REGISTRATION NUMBER: NCT06277401.

Effectiveness of resistance training of masticatory muscles for patients with temporomandibular disorders: protocol for a systematic review.

INTRODUCTION: Temporomandibular disorders (TMDs) are musculoskeletal disorders characterised by jaw pain and typically temporomandibular joint limitations. Resistance training (RT) has been shown to be effective at reducing pain and improving function for different musculoskeletal conditions (eg, neck pain, low back pain); however, the effectiveness of RT for patients with TMDs remains unclear. This systematic review will evaluate the effectiveness of RT on pain and temporomandibular joint range of motion in people with TMDs. METHODS AND ANALYSIS: The report of this protocol aligns with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols. The search strategy will be conducted from 1 March 2024 to 31 March 2024 via the following electronic databases: MEDLINE (OVID interface), EMBASE (OVID interface), SCOPUS, Web of Science, PubMed and Cochrane Central Register of Controlled Trials. Any randomised controlled trials or non-randomised studies of interventions in adults with TMD that examine RT targeting the masticatory muscles, compared to other interventions not including RT, will be included. Primary outcomes will be jaw pain intensity and maximal mouth opening. Secondary outcomes will include measures of neuromuscular performance and pressure pain thresholds. Two independent reviewers will conduct the screening of articles for inclusion, data extraction, risk-of-bias assessment using the revised Cochrane risk-of-bias tool for included studies and will evaluate the overall quality of evidence following the Grading of Recommendations Assessment, Development and Evaluation framework. A meta-analysis will be performed where applicable. Alternately, a narrative synthesis will be performed by adhering to the synthesis without meta-analysis guidelines. Data will be summarised according to the outcome measures or, when this is not possible, according to other pertinent variables such as TMD type (ie, temporomandibular joint disorders, masticatory muscle disorders and mixed disorders). ETHICS AND DISSEMINATION: Ethical approval is not necessary, since this study does not involve the collection of primary data. The results will be disseminated through presentations at scientific conferences and publication in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER: CRD42023476269.

Musculoskeletal disorders among teachers: a systematic review and meta-analysis.

Introduction: As a result of the demands of their profession, teachers encounter a range of ergonomic risk factors and are highly susceptible to developing musculoskeletal disorders (MSDs). Accordingly, this systematic review and meta-analysis was carried out to examine the frequency of MSDs among teachers. Materials and methods: The present research followed the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines and its protocol was registered in international prospective register of systematic review (PROSPERO) under the code CRD42024509263. To conduct the searches, various databases such as PubMed, Scopus, Web of Science, Science Direct, SID, ISC, and Google Scholar were utilized, and the search period was until February 7th, 2024 without time restriction. A random effects model was employed for meta-analysis, and I2 index was utilized to assess heterogeneity among the studies. Data analysis was carried out using STATA (version 14). Results: After an initial search across the mentioned databases, a total of 2,047 articles were identified. Following screening, study selection, and quality evaluation, 44 studies were ultimately chosen for meta-analysis, involving 15,972 teachers. The results of the meta-analysis revealed that the overall prevalence of MSDs among teachers is 68% (95% CI: 61-75, I2 = 99.2%, p < 0.001). Furthermore, the prevalence rates of MSDs in different body regions, such as the neck (47%), lower back (47%), shoulder (44%), upper back (37%), knee (35%), ankle (30%), wrist (27%), hip (22%), and elbow (13%), were reported. Conclusion: The overall prevalence of MSDs among teachers is relatively high. Neck and lower back pain are more common among them compared to other body regions. It is recommended that periodic occupational medicine examinations, training, and the implementation of ergonomic interventions for this occupational group focus on assessing the risk factors for MSDs, especially in the neck and lower back regions. Systematic review registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=509263, identifier CRD42024509263.

Ergonomic and sustainable posture for gynecological laparoscopic surgeons determined based on images analyzed using artificial intelligence.

Studies have reported the emergence of work-related musculoskeletal disorders (WMSD) due to surgery. In fact, the usfige of long-shafted instruments has been suspected to induce WMSD in laparoscopic surgery. The present study therefore investigated whether differences in the range of motion of the face and neck, and the shoulder, elbow and hand on the dominant hand side, existed when using short- and long-shafted laparoscopic coagulation shears (LCS) during a gynecological laparoscopic surgery, based on images analyzed using artificial intelligence. After identifying the corresponding body parts in the video, the range of motion was illustrated graphically for each joint coordinate, followed by statistical analysis for changes in the position of each part. The range of motion for the face and neck did not significantly differ, whereas those for the shoulder, elbow and hand became noticeably broader when using the 36-cm long-shafted LCS than when using the 20-cm short-shafted LCS. Overall, the shorter LCS promoted a narrower range of motion compared with the 36-cm LCS, suggesting its potential for reducing the physical strain placed on the surgeon's body during gynecological laparoscopic surgery.

Prevalence of musculoskeletal pain among undergraduate students.

Introduction: Musculoskeletal disorders (MSDs) are rapidly rising in Saudi Arabia, reaching levels similar to those in the Western world. Hence, we aimed to assess the prevalence of neck, shoulder, and lower back pains (musculoskeletal pain, MSP) among students at King Khalid University in Abha, Saudi Arabia. Methods: This cross-sectional study was conducted at King Khalid University in Abha, Saudi Arabia, from March 2023 to August 2023. Inclusion criteria were: university students aged 18 years and older of both sexes who agreed to participate in the study. The modified Nordic questionnaire was used, which comprised three parts. Results: Out of 536 respondents, 337 were women and 199 were men. The average body mass index (BMI) of the study population was 25.3 ± 4.01. In total, 223 (41.60%) had a history of MSDs. Only 232 (43.28%) of the population did regular exercise. According to multiple logistic regression analysis, factors associated with MSDs are mobile device use (with both hands) with a large neck tilt below the horizon line position (OR = 2.276, CI 1.178-4.397, p = 0.014), family history of trauma (OR = 5.450, 95% CI 3.371-8.811, p = 0.000), family history of MSDs (OR = 4.241, 95% CI 2.296-7.835, p = 0.000), coffee consumption (OR = 1.967, CI 1.281-3.020, p = 0.002), and time spent on electronic devices: 1-3 h (OR = 0.252, 95% CI 0.124-0.511, p = 0.0001), 4-6 h (OR = 0.455, 95% CI 0.237-0.873, p = 0.018), and 6-9 h (OR = 0.348, 95% CI 0.184-0.660, p = 0.001). Conclusion: The present study concludes that MSP among university students is high. A history of trauma, a family history of MSDs, the hand and neck position when using electronic devices, the amount of time spent using them, and regular exercise are risk factors that are strongly associated with MSP. There is strong evidence to suggest that increasing physical activity plays a significant role in enhancing the functionality of the musculoskeletal (MSK) system and alleviating pain. It is recommended that universities implement educational programs to raise awareness and health screenings about the impact of device usage on MSK health and the benefits of regular exercise.

Effect of exoskeleton devices on work-related musculoskeletal disorders (WMSDs) among healthcare workers: a scoping review.

Work-related musculoskeletal disorders (WMSDs) have been a concern among healthcare workers, impacting their well-being and patient safety. Exoskeleton technologies have gained a growing interest as an ergonomic intervention for WMSDs. This scoping review explores exoskeleton effects on WMSDs among healthcare workers. A comprehensive search identified 9 eligible studies published in English between 2013 and 2023. Exoskeletons showed promising effects on objective measures, selectively reducing muscle activation in a task-dependent manner. They also improved force exertion and body posture parameters in specific scenarios. Subjectively, exoskeletons reduced discomfort, pain, fatigue, and received positive perceptions with acceptable usability. However, the impact on perceived exertion varied with tasks. While exoskeletons have shown potential in enhancing healthcare workers' well-being and performance, more work is required to refine their effectiveness and maximise benefits in different healthcare settings. The study revealed the need for standardised methodologies, consideration of participant characteristics, and optimisation of exoskeleton design.

This scoping review investigated the effects of exoskeleton technologies on WMSDs among healthcare workers. The review identified 9 studies published between 2013 and 2023. Overall, exoskeletons showed promise in reducing muscle activation, improving force exertion, posture, and subjective measures. Standardised methodologies and design optimisation are needed to maximise benefits.