Work - Volume 78, issue 1

Authors: Upadhyay, Rahul | Kumar, Ashish | Bhattacherjee, Ashis | Patra, Aditya Kumar | Chau, Nearkasen

Article Type: Research Article

Abstract: BACKGROUND: This study focuses on evaluating the exposure to whole-body vibration (WBV) and association of musculoskeletal disorders (MSDs) with various risk factors among dumper operators in the mining industry. Despite the issue’s significance, prior research has been limited. OBJECTIVE: The study introduces a novel fuzzy-based approach for identifying, selecting, and prioritizing safety measures to mitigate MSD risks. METHODS: Data collection comprised face-to-face interviews, anthropometric measurements, Rapid Upper Limb Assessment (RULA) scoring for posture assessment, and the Nordic Musculoskeletal questionnaire for assessment of MSD prevalence. Multiple linear and logistic regression models were used to …analyse the contributing risk factors to MSDs and WBV exposure. These risk factors formed the basis for a practical approach to select appropriate safety measures based on fuzzy based aggregation method of expert’s judgment aimed at mitigating the risk of MSDs. RESULTS: The results revealed that the risk factors such as poor work posture, WBV exposure and poor seat design were significantly associated with neck (adjusted odds ratio aOR = 4.81), upper limb and shoulder (aOR = 3.28), upper back (aOR = 5.09), and lower back pain (aOR = 3.67) at p  < 0.05. Using these factors to formulate safety measures to reduce MSD risk, the minimization of sharp turns and abrupt changes in elevation in designing the haul roads, scheduled maintenance practices, and ergonomic seat design were found as important safety measures in this study. CONCLUSION: Our unique methodological approach in occupational health research could be highly beneficial for tailoring safety measures at the unit level with minimal effort. Show more

Keywords: Musculoskeletal pain, occupational health, ergonomics, WBV exposure, surface mining, interventions, fuzzy set

DOI: 10.3233/WOR-230489

Citation: Work, vol. 78, no. 1, pp. 131-152, 2024

Authors: Goggins, Katie A. | Thompson, Taryn J. | Lessel, Courtney E. | Kelly, Elizabeth A. | O’Hara, Dawson E.L. | Eger, Tammy R.

Article Type: Research Article

Abstract: BACKGROUND: Occupational foot-transmitted vibration (FTV) exposure is common in industries like mining, construction, and agriculture, often leading to acute and chronic injuries. Vibration assessments require technical expertise and equipment which can be costly for employers to perform. Alternatively, researchers have observed that self-reported discomfort can be used as an effective indicator of injury risk. OBJECTIVE: This study aimed to investigate the effect of standing FTV exposure on self-reported ratings of discomfort, and whether these subjective ratings differed by body area and exposure frequency. METHODS: Participants (n  = 30) were randomly exposed to standing FTV …at six frequencies (25, 30, 35, 40, 45, and 50 Hz) for 20–45 seconds. Following each exposure, participants rated discomfort on a scale of 0–9 in four body areas: head and neck (HN), upper body (UB), lower body (LB), and total body. RESULTS: Results indicated that participants experienced the most discomfort in the LB at higher frequencies (p  < 0.001), consistent with the resonance of foot structures. The HN discomfort tended to decrease as the exposure frequency increased, although not statistically significant (p  > 0.0167). The UB discomfort remained relatively low across all frequencies. CONCLUSIONS: The study suggests a potential connection between resonant frequencies and discomfort, potentially indicating injury risk. Although self-reported discomfort is insufficient for directly assessing injury risk from FTV, it provides a simple method for monitoring potential musculoskeletal risks related to vibration exposure at resonant frequencies. While professional vibration assessment remains necessary, self-reported discomfort may act as an early indicated of vibration-induced injuries, aiding in implementing mitigation strategies. Show more

Keywords: Occupational injuries, foot injuries, repetitive strain injury, musculoskeletal diseases, pain, ache

DOI: 10.3233/WOR-230491

Citation: Work, vol. 78, no. 1, pp. 153-165, 2024

Authors: Medeni, Volkan | Tokatlı Doğan, Merve | Medeni, İrem | Uğraş Dikmen, Asiye | İlhan, Mustafa Necmi

Article Type: Research Article

Abstract: BACKGROUND: Caregivers assist patients in treatment based on their care needs and living activities. Very few studies have been conducted specifically on the occupational health and safety of hospital caregivers. OBJECTİVE: This study aimed to investigate the prevalence of excessive workload and low back pain among hospital caregivers and to identify potential associated factors. METHODS: This cross-sectional study included caregivers working at Gazi University Hospital. Socio-demographic and working-life characteristics were assessed. The Role Overload Scale was used to determine excessive workload and the Roland-Morris Disability Questionnaire was used to evaluate low back pain. RESULTS: …The study included 528 participants. A total of 18.7% had work accidents in their department. 49.0% had sharp injuries. 68.9% of the participants performed tasks such as positioning, turning, lifting, or helping patients to walk. 72.2% stood for a long time during the workday. 52.8% thought that they worked under stress. 57.6% had low back pain in the last year and 38.6% in the last month, Significant differences exist in low back pain according to gender, body-mass index, standing for a long time and working under stress. Those who worked at night, had a work accident, positioned patients, stood for a long time, and worked under stress had higher mean scores on the Role Overload Scale. CONCLUSION: Tools should be used to lift and transport patients. In addition to occupational health and safety training, awareness of musculoskeletal risks should be increased. Employee well-being can be improved through exercise and stress reduction techniques. Show more

Keywords: Caregivers, health personnel, low back pain, workload, occupational accidents, wounds and injuries

DOI: 10.3233/WOR-230524

Citation: Work, vol. 78, no. 1, pp. 167-179, 2024

Authors: Shetty, Gautam M. | Shah, Nirja | Arenja, Avyayaraj

Article Type: Research Article

Abstract: BACKGROUND: Although many studies have investigated the physical and ergonomic risks of spine pain in specific occupation groups, the literature is lacking on occupation-based clinical and psychological presentation in patients with spine pain. OBJECTIVE: To analyze occupation-based variation in demographic, clinical, and psychological presentation in patients with spine pain. METHODS: This retrospective study analyzed the clinical data of 71727 patients with spine pain visiting a chain of spine rehabilitation clinics. Demographic and clinical variables such as gender, age, affected site, symptom duration, clinical symptoms and presentation, pain intensity, disability, and STarT Back Screening Tool (SBT) risk …were compared between 9 occupational groups. RESULTS: The service and sales workers (44%) and students (43.5%) groups had the highest percentage of patients who presented with central spine pain; military personnel had the highest percentage of patients who presented with unilateral radicular pain (51.5%); and the retired or unemployed group had the highest percentage of patients who presented with severe myotomal loss (grade≤3) (6%). Homemakers had significantly higher pain intensity and disability (p  < 0.001) and had the highest percentage of patients who presented with severe pain (47%), severe and crippled disability (59.5%), and medium to high risk (59%) with SBT when compared to other occupational groups. CONCLUSION: Patients with spine pain showed variation in demographic, clinical, and psychological presentation based on their occupation. The findings of this study can be the basis for identifying risk factors for spine pain and helping plan preventive and treatment measures based on their occupation. Show more

Keywords: Spine, epidemiology, occupation, neck pain, low back pain, radiculopathy, India

DOI: 10.3233/WOR-230551

Citation: Work, vol. 78, no. 1, pp. 181-193, 2024

Authors: Pehlevan, Elif | Şevgin, Ömer

Article Type: Research Article

Abstract: BACKGROUND: Exercise and manual therapy are used with pharmacological interventions to manage low back pain and prevent work-related musculoskeletal disorders. However, the potential benefits of incorporating exercise and ergonomics training for factory workers experiencing low back pain have not been definitively established. OBJECTIVE: The objective of this study was to assess the impact of ergonomics training with exercises on pain, functionality, sleep, and fatigue among factory employees experiencing low back pain. METHODS This research was conducted as a randomized controlled trial involving workers with back pain employed in a plastic molding factory in Gebze, Kocaeli. Both …groups received ergonomics training, but only the experimental group was given exercise training inclusive of stretching and core stabilization exercises. The workers in the experimental group were instructed to perform the exercises regularly for three days a week over a period of eight weeks. The McGill Pain Questionnaire (MPQ), the Visual Analogue Scale (VAS), the Fatigue Severity Scale (FSS), the Pittsburgh Sleep Quality Index (PSQI), and the Oswestry Disability Index (ODI) were used for pre-and post-treatment assessment. RESULTS: The ODI, FSS, PSQI, and MPQ scores were significantly reduced in both groups. In the intergroup comparison, the exercise group showed a significantly greater decrease in all test scores compared to the control group. CONCLUSION: The exercise group showed a statistically significant decrease in ODI, FSS, MPQ, and PSQI scores compared to the control group. This study demonstrated that exercise is a more effective practice than ergonomic training for factory workers suffering from chronic low back pain. Show more

Keywords: Employees, exercise, pain, ergonomics, rehabilitation, sleep

DOI: 10.3233/WOR-230663

Citation: Work, vol. 78, no. 1, pp. 195-205, 2024

Authors: Viniston J, Sam Blessing | Bhushan, Shivanand | Saha, Shovan

Article Type: Research Article

Abstract: BACKGROUND: Musculoskeletal disorders (MSDs) are a severe occupational health issue among medical radiation practitioners. It is mostly linked to personal protective wear, working posture, tools employed and ergonomics. OBJECTIVE: To assess and evaluate the musculoskeletal disorders among nuclear medicine professionals (NMP) in India. METHODS: An online survey was distributed to 455 NMP throughout India between November 2021 and March 2022 covering the demographic characteristics and questions for evaluation of musculoskeletal symptoms using the Standardized Nordic Musculoskeletal Questionnaire (NMQ). Participants with any pre-existing musculoskeletal disorder or trauma were excluded. Descriptive statistics summarized the data …from the demographics, discomfort, aches and work-related musculoskeletal injuries. Chi-square test was used to examine the association between the obtained values. RESULTS: 91 out of 124 respondents were included based on the inclusion and exclusion criteria. Results shows that there is a significant association between the height of the individual and neck pain, body mass index and elbows pain, age and low back pain, experience in the current work and upper back pain, the weight of the individual and knee pain, use of mobile lead screens and shoulder pain, use of gonad shield, trouble in the ankles and use of lead screens, and QC phantoms for gamma camera / PET and wrists/hands pain. CONCLUSION: Work-related musculoskeletal disorders among NMP are resulting from factors of individual demographic variables (such as age, height, weight, body mass index), years of experience at the current workplace and of using instruments in their work area. Show more

Keywords: Nuclear medicine professionals, musculoskeletal disorders, health safety, work place

DOI: 10.3233/WOR-230693

Citation: Work, vol. 78, no. 1, pp. 207-215, 2024