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Price: EUR 250.00Authors: Graydon, Joanne | Coman, Robyn | Hanley, Natalia | Caputi, Peter
Article Type: Research Article
Abstract: BACKGROUND: Teachers can be at risk of exposure to psychosocial hazards. Improving workplace safety for teachers, within a ‘systems thinking’ context, should begin with understanding the work. OBJECTIVE: While much is known about what teachers do, little is known about how teachers conceptualize ‘work’. Knowing how teachers conceptualize ‘work’ provides a reference point for exploring attitudes towards work health and safety. METHODS: The paper presents a review of the literature, an overview of heuristic methodology describing and interpreting the lived experience of teachers as workers, and analysis of teachers’ accounts of work. The heuristic approach allowed …the author to compare their lived experiences and perceptions as a teacher with the lived experience of teachers in the NSW school system. RESULTS: Teaching is work that is both rewarding and hazardous. It is argued that teachers draw on battle motifs, perceive a need for safety within a workplace context, and have an ability to conduct personal risk assessments. CONCLUSIONS: Findings from the study provided direction for the second phase of the project that is aimed at exploring the ways in which teachers conceptualize psychosocial work- related hazards and the extent to which they are visible in teaching practice and policy. Show more
Keywords: Teaching, teachers’ perceptions, lived experience, psychosocial hazards, neoliberal
DOI: 10.3233/WOR-203154
Citation: Work, vol. 66, no. 1, pp. 95-107, 2020
Authors: Borgheipour, Hasti | Eskandari, Davood | Barkhordari, Abdullah | Mavaji, Maedeh | Tehrani, Ghazaleh Monazami
Article Type: Research Article
Abstract: BACKGROUND: As cement industries have remarkably affected the economy of producer’s countries, one of the main concerns of these industries is to prevent accidents and related costs. OBJECTIVE: The present study investigates the relationship between the safety climate and safety performance with the moderating role of safety knowledge and the mediating role of safety motivation in the cement industry. METHODS: Data were collected from 230 Iranian employees of the cement industry using a safety climate and performance questionnaire. The relationships between variables and analysis of the collected data were tested using structural equation modeling. …RESULTS: The results indicated that the safety climate had a positive effect on safety performance in the cement industry. Moreover, management’s commitment to safety was positively or negatively related to the social support and production pressure. There was either a positive and negative relationship between social support and production pressure of safety knowledge and safety motivation, respectively. CONCLUSION: The integrative model suggested that it was important to promote the safety knowledge at all organizational levels to develop spontaneous activities and raise safety in the intended organization. Show more
Keywords: Safety knowledge, safety behaviors, management’s commitment, safety motivation, social support
DOI: 10.3233/WOR-203155
Citation: Work, vol. 66, no. 1, pp. 109-117, 2020
Authors: Shih, Yi-Nuo | Chu, Kuo-Hsin | Wu, Chia-Chun
Article Type: Research Article
Abstract: BACKGROUND: Work attention in employees with schizophrenia is a significant issue in vocational rehabilitation. Background music is very popular in workplaces, and according to some investigations, can help increase attention at work if utilized appropriately. OBJECTIVE: This study investigates the influence of background music tempo on attention performance in employees with chronic schizophrenia. METHODS: A randomized controlled trial (RCT) study was performed to test the attention of 240 participants with chronic schizophrenia under four conditions, namely no music, fast tempo, slow tempo and white noise. RESULTS: Employees with schizophrenia achieved higher attention scores under …background music than in a no-music environment. Additionally, slow-tempo music produced higher attention scores than fast-tempo music. CONCLUSIONS: Observational results indicate that slow-tempo background music is more desirable than fast-tempo background music in a work environment involving schizophrenic individuals. Show more
Keywords: Background music, schizophrenia, work attention, tempo
DOI: 10.3233/WOR-203156
Citation: Work, vol. 66, no. 1, pp. 119-123, 2020
Authors: Sur Unal, Ulku | Cifcili, Saliha Serap
Article Type: Research Article
Abstract: BACKGROUND: While professional musicians may have a high incidence of musculoskeletal pain, there are few studies on the performance-related musculoskeletal disorders (PRMD) in visual artists. OBJECTIVE: To assess the prevalence and probable risk factors of PRMD in visual artists. METHODS: The study population comprised the students and academics of fine arts faculty. The Rapid Entire Body Assessment (REBA) and the Cornell Musculoskeletal Discomfort Questionnaires were used to evaluate posture and pain, respectively. RESULTS: The study included 197 participants (140 women, 57 men). The mean REBA score was 5.2. The sculptors who worked in marble …sculpting had the highest REBA scores. Of the participants, 88.8% reported musculoskeletal pain. The pain severity of 64.0% of the participants was 3 (very uncomfortable with a reduction in activity) and/or 4 (pain interferes with the ability to work). The PRMD prevalence was 64.0%, and significantly higher in women than in men (p < 0.05). CONCLUSIONS: Musculoskeletal pain in visual artists is extremely prevalent. Mean REBA score of 5.2 corresponds to a medium risk assessment accompanied by guidance to “further investigate, change soon.” The policy makers in fine arts faculties who are responsible for student and employee health should prioritize strategies to prevent and manage musculoskeletal pain. Show more
Keywords: Ergonomics, visual arts, musculoskeletal pain, occupational medicine, epidemiology
DOI: 10.3233/WOR-203157
Citation: Work, vol. 66, no. 1, pp. 125-133, 2020
Authors: Cornelissen, Pieter A. | Van Vuuren, Mark | Van Hoof, Joris J.
Article Type: Research Article
Abstract: BACKGROUND: Occupational incidents and accidents are still commonplace in the contemporary workplace, despite increased understandings of safety. OBJECTIVE: This article aims to yield new insights into safety-related thinking, decisions and behaviours through the application of an institutional logics perspective. METHOD: Semi-structured interviews with twenty-two managers in a railroad construction and maintenance organisation were conducted, in which a variety of topics related to occupational safety and management were discussed. RESULTS: The results illustrate that an institutional logics perspective provides useful insights into the different logics of the market, profession, and corporation in the occupational safety …context. Furthermore, the results demonstrate contradictory viewpoints, so-called complexity, between these three logics and subsequent management approaches. CONCLUSIONS: We demonstrate that viewing occupational safety through the lens of institutional logics leads to a better understanding of safety and reveals various rationales for safety attitudes and behaviours that otherwise may have been dismissed as irrational. Understanding and possessing the discourse of logics can help managers and safety professionals with analysis and prevention of accidents. Show more
Keywords: Workplace safety, institutional complexity, market logic, profession logic, corporation logic
DOI: 10.3233/WOR-203158
Citation: Work, vol. 66, no. 1, pp. 135-147, 2020
Authors: Wadeson, Amy | White, Melissa M. | Zhang, Wenjuan | Lau, Mei Y. | Kaber, David B.
Article Type: Research Article
Abstract: BACKGROUND: Previously, a stretching regimen was designed for manual material handling (MMH) of gas cylinders as a potential ergonomic solution for reducing occupational injury. No studies have made use of objective process measures, such as muscle activation levels, for evaluation of effects of stretching programs. OBJECTIVE: Examine acute effects of stretching on muscle activation levels and driver perceived level of exertion in gas cylinder handling during simulated delivery operations. METHODS: A within-subject experiment was conducted with eight male participants being subjected randomly to two conditions over a two-day period: stretching before delivery trials and no stretching. …Surface electromyography and the Borg CR-10 scale for perceived exertion were used. RESULTS: Generally, results were variable among muscle responses. The extensor muscle bundle in the forearm was found to show a significant decrease (p = 0.0464) in activation level because of stretching. The anterior deltoid and trapezius significantly increased (p < .0001) the EMG activation level with stretching. Also counter to expectations, participants rated perceived exertion significantly higher (p = 0.0423) for trials preceded by stretching. CONCLUSIONS: This research indicates a muscle stretching regimen in advance of MMH activities has mixed effects on activation levels across muscles. It is possible that effects are attributable to body posture positions, or manner of muscle use, during actual work activities. Findings indicate that stretching prior to work activity does have an impact on specific muscle activation. Show more
Keywords: Surface electromyography, stretching program, manual material handling
DOI: 10.3233/WOR-203159
Citation: Work, vol. 66, no. 1, pp. 149-160, 2020
Authors: Rincón, Ovidio | Bernal, Martha Lucía | Salazar, José Javier | Zea, Christian Ricardo
Article Type: Research Article
Abstract: BACKGROUND: Students remain in a sedentary position inside classrooms for 60% to 80% of their school day. As such, research has associated students’ prolonged seated posture on school furniture with their discomfort and musculoskeletal pain. The correlation between the shape of the seat surface and the zones of the body making contact with these surfaces constitutes an essential factor in determining comfort-enhancing seat design. OBJECTIVE: This study’s primary aim lies in contrasting the standard, current school chair against two seat prototypes, both designed and built from digital models, comparing seat-user pressure distribution and contact area during students’ performance …of different school tasks. METHODS: Participants (n = 13), ages 7 to 19, performed school tasks sitting on three different chairs’ seat surfaces during the test: the current seat used in schools and two seat prototypes, each designed based on body anatomy. The seats were evaluated through a force-sensing array pressure-mapping system. RESULTS: The measurements from designed seat prototypes provide a better distribution of pressures and greater contact area with the students’ anatomical areas (buttocks and thighs) than the seat currently used in the specified schools. The improvement in pressure values and contact area as seen in the second designed seat prototype is due to its inclination angle and contact with students’ sacral zone. CONCLUSIONS: This research work found that a seat’s shape based on human anatomical features (buttocks and thighs), compared to a completely flat seat, creates a higher reduction of body pressures and an increase in the body contact area, with the intent to increase comfort and reduce musculoskeletal pain. Show more
Keywords: School furniture, pressure measurement, seat surface shape, design, comfort
DOI: 10.3233/WOR-203160
Citation: Work, vol. 66, no. 1, pp. 161-171, 2020
Authors: Ahn, Sun-hee | Kwon, Oh-yun | Hwang, Ui-jae | Jung, Sung-hoon | Kim, Hyun-a | Kim, Jun-hee
Article Type: Research Article
Abstract: BACKGROUND: Increased genu recurvatum (GR) angle is a risk factor for knee injury. Identification of factors causing GR is important for the prevention and rehabilitation of GR. Few studies have investigated the association between muscle strength and GR. OBJECTIVE: To examine the association between GR angle and hip and knee muscle strength in standing workers METHODS: The participants in this study were 110 healthy volunteers (59 male, 51 female) who performed standing work in a theme park. The GR angle, muscle strength, and strength ratio of the lower extremities were measured to determine their associations with …GR. The GR angle was measured using a Smart KEMA motion sensor, and muscle strength was assessed using a Smart KEMA strength sensor. Stepwise multiple regression models were used to investigate which muscles contributed most to the extent of the GR angle. RESULTS: Stepwise multiple regression analysis showed that the decreased hip external rotator to hip internal rotator ratio, increased knee extensor to knee flexor ratio, and young age were associated with an increased GR angle. CONCLUSIONS: Many factors are known to increase the GR angle. However, this study investigated the roles of only hip and knee muscle strength. The results suggest that muscle strength ratios are more important than the weakness of any muscle. Show more
Keywords: Back knee, genu recurvatum, influencing factor, multiple regression, muscle strength
DOI: 10.3233/WOR-203161
Citation: Work, vol. 66, no. 1, pp. 173-181, 2020
Authors: Ezeukwu, Obinna Antoninus | Ojukwu, Chidiebele Petronilla | Okemuo, Adaora Justina | Anih, Chinagozim Faith | Ikele, Ikenna Theophilus | Chukwu, Sylvester Caesar
Article Type: Research Article
Abstract: BACKGROUND: For maternal and infant benefits, cradle, cross-cradle and football hold positions have been recommended and widely utilized by mothers during breastfeeding (BF) tasks. There is paucity of data on the biomechanical costs of these BF positions. OBJECTIVE: This study evaluated the trunk lean angles and electromyographic (EMG) activities of the trunk muscles during these BF positions. METHODS: In this experimental study, 25 nulliparous females carried a 6-kg weighing infant, while simulating BF tasks in each of the three BF hold positions for five minutes respectively. During each task, forward and lateral trunk lean angles were …measured with a single inclinometer. Activities of the right and left erector spinae (ES) and external oblique (EO) muscles were also measured via surface electromyography. One-way analysis of variance was used to analyze data at a significance level of 0.05. RESULTS: Cross-cradle position resulted in significantly higher anterior trunk lean and right ES and EO muscle activities. Conversely, cradle position significantly elicited highest activities in the left ES and EO muscles. Left trunk lean angles were highest during the football position. CONCLUSION: Football BF position may pose less risk of BF-related musculoskeletal disorders in nursing mothers, as compared to the cradle and cross-cradle BF positions. Show more
Keywords: Electromyography, trunk muscle, trunk lean angle, lactation
DOI: 10.3233/WOR-203162
Citation: Work, vol. 66, no. 1, pp. 183-191, 2020
Authors: Souza, Tamires Patrícia | Souza, Rafaela | Watte, Guilherme | de Souza, Jorge Alan | Moreira, José da Silva | Knorst, Marli Maria
Article Type: Research Article
Abstract: BACKGROUND: Semi-precious stone mining may cause occupational lung disease. The impact of inhaling silica on workers’ exercise capacity has only been partially studied. OBJECTIVES: To study lung function, exercise capacity, and identify factors associated with functional impairment. METHODS: In a cross-sectional study of 193 current miners from Ametista do Sul, Rio Grande do Sul, Brazil, medical and occupational data were collected. The diagnosis of silicosis was established by the history of dust exposure and chest radiographic findings. All workers performed a spirometry and a 6-minute walk test (6MWT). RESULTS: Of the sample 51 (26.4%) …had silicosis. Time working in mine was 14.7±8.7 years. Spirometry showed a normal, restrictive or obstructive ventilatory pattern in 75.1 %, 13 % and 9.3 % of the workers, respectively. The diagnosis of silicosis and length of time working in mining negatively affected lung function, although exercise capacity was preserved. In the multivariate analysis, time working in mining, diagnosis of silicosis and education remained significant for forced expiratory volume in one second (FEV1 ; r = 0.60; r 2 = 0.36; p < 0.001) and age and height for distance in 6MWT (r = 0.66; r 2 = 0.43; p < 0.001). CONCLUSIONS: Our results show impaired lung function and preserved exercise capacity in current mineworkers exposed to silica. Length of time working in mining, presence of silicosis and lower education were factors associated with reduced lung function. Show more
Keywords: Pneumoconiosis, silicosis, exercise, 6-minute walk test
DOI: 10.3233/WOR-203163
Citation: Work, vol. 66, no. 1, pp. 193-200, 2020
Authors: Karpman, Jesse | Gross, Douglas P. | Manns, Patricia | Tomkins-Lane, Christy
Article Type: Research Article
Abstract: BACKGROUND: The use of wearable accelerometers in conjunction with Functional Capacity Evaluation (FCE) may provide additional useful information about maximum performance in workers and enhance the validity of functional testing. However, little research has been conducted to compare accelerometer output with performance during FCE. OBJECTIVE: The objectives of this study were to: (1) Determine the magnitude and direction of correlation between participant performance on five FCE tasks and scores from Actigraph activity monitors; and (2) Compare the results of two different placements of Actigraph devices. METHOD: We used a cross-sectional design and convenience sampling to collect …data from 46 healthy participants. Each participant completed 5 functional tasks selected from the WorkWell FCE protocol while wearing 2 Actigraph devices, 1 on the dominant side waist and 1 on the non-dominant wrist. The FCE tasks included 5-repetition maximum lifting (floor-to-waist, waist to crown and front carry), a sustained overhead work endurance task, and the 6-minute walk test. Analysis included calculating Pearson regression coefficients between maximum FCE item performance and Actigraph vector magnitudes (VM) along with Intraclass Correlation Coefficients (ICC) to compare VM activity counts derived from the Actigraphs on the waist and wrist. RESULTS: Thirty-Nine (84.8%) participants had complete data and were included in analysis. Findings indicate Actigraph VM data from the device worn on the waist correlated positively with maximum lift performance (r = 0.39–0.64, p < 0.001 to 0.08) and 6-minute walk distance (r = 0.66, p < 0.001). Actigraph data from wrist placement were not significantly correlated with FCE performance on any of the functional tasks, except when comparing average VM data and waist to crown lift (r = 0.44, p < 0.001). There was no significant correlation in either Actigraph placement for VM and overhead work time. ICCs between the two Actigraph placements ranged from poor to acceptable agreement (ICC = 0.24–0.70, p < 0.001 to 0.19). CONCLUSIONS: Actigraph device output correlated moderately with maximum performance on FCE lift and ambulation tests. Waist placement appears more suitable than wrist during performance-based tests. Show more
Keywords: Accelerometry, disability evaluation, motor activity, return to work, exercise test
DOI: 10.3233/WOR-203164
Citation: Work, vol. 66, no. 1, pp. 201-211, 2020
Authors: Soltaninejad, Mohammadreza | Khammar, Alireza | Aminizadeh, Mohsen | NabiAmjad, Reza | Raei, Mehdi | Hami, Mahsa | Poursadeqiyan, Mohsen
Article Type: Research Article
Abstract: INTRODUCTION: Many adverse effects occur among the nurses due to shift work Hence, the present study aimed to determine the prevalence of shift work-related disorders and its related factor among the nurses at Tehran University Subsidiary Hospital, Iran, and to find solutions for managing the relevant health problems. METHODS: In this cross-sectional study, the Survey of Shift workers (SOS) questionnaire and the Personal Information Form were used to collect data related to demographics and working conditions of 1259 randomly selected nurses working at Tehran University Subsidiary Hospital as statistical population. RESULTS: According to the results, psychological …disorders (95%), digestive problems (85%) and social problems (80%) were the most frequent problems among the subjects. Additionally, the satisfaction rate was higher among the volunteer nurses compared to nurses who were forced to do shift work (P < 0.05). CONCLUSION: The nurses volunteered for shift work had higher satisfaction rate compared to nurses forced to shift work system; moreover, they had more job satisfaction and less shift work-related complaints. Therefore, it is important to select the nurses who are volunteer for shift work system. In addition, the shift work schedule in hospitals should be set based on workload and requirements because the shift schedule can adversely influence the social and family issues of the nurses, as well as their sleep quality and body biological process. Show more
Keywords: Psychological disorders, digestive problems health problems, sleep disorder, night work
DOI: 10.3233/WOR-203165
Citation: Work, vol. 66, no. 1, pp. 213-219, 2020
Authors: Kippe, Karin | Lagestad, Pål
Article Type: Research Article
Abstract: BACKGROUND: Research suggests that one-third of Norwegian adults satisfy national health recommendations for physical activity, but little knowledge exists regarding activity levels in different occupations. OBJECTIVES: This study investigates the level at which kindergarten staff fulfil these health recommendations, and examines differences in physical activity levels of staff working mainly with toddlers (1–3 years) and older children (4–6 years). The study also investigates physical activity level during working time and leisure time. METHODS: Physical activity levels among 43 kindergarten staff members were measured utilizing accelerometers and questionnaires. RESULTS: The results demonstrate that 86% of …kindergarten staff satisfy the health recommendations for physical activity. Moreover, kindergarten staff working with older children were significantly more physically active than staff working with toddlers. CONCLUSIONS: Physical activity level during working time was found to be of major significance for fulfilling the health recommendations among kindergarten staff working with toddlers. Show more
Keywords: Health recommendations, kindergarten staff, kindergarten children
DOI: 10.3233/WOR-203166
Citation: Work, vol. 66, no. 1, pp. 221-228, 2020
Authors: Colim, Ana | Sousa, Nuno | Carneiro, Paula | Costa, Nélson | Arezes, Pedro | Cardoso, André
Article Type: Case Report
Abstract: BACKGROUND: Several risk factors among packing lines workers can lead to Work-related Musculoskeletal Disorders (WRMSD) occurrence. Foreseeing WRMSD prevention and productivity increase, some furniture manufacturing industries have been investing in the adoption of robotic solutions. In this field, ergonomics plays an important role to verify if automation implementation has been successful. OBJECTIVE: This study aims to address the general impact and effectiveness from an ergonomics point of view of the implementation of a robotic aid in a packing workstation. METHODS: The Nordic Musculoskeletal Questionnaire (NMQ) was applied to 14 workers of semi-automated packing lines. Some additional …questions about occupational conditions were included. In order to assess the ergonomic impact of the robotic aid, Rapid Upper Limb Assessment (RULA) was also applied by trained ergonomists, by analyzing the considered packing workstations before and after the adoption of the robotic aid proposed solution. RESULTS: The results showed that trunk torsion was the most highlighted WRMSD risk factor by all workers, associating it with the lumbar pain. The obtained RULA scores demonstrated that the adoption of a robotic aid eliminated this risk factor and, consequently, reduced the corresponding WRMSD risk. CONCLUSIONS: The adoption of robotic aids can be instrumental in reducing WRMSD risk in furniture manufacturing industries. Ergonomic studies with workers’ participatory approaches seem to be an appropriate strategy to enable the validation and development of industrial robotic solutions. Show more
Keywords: Ergonomics, workers’ perceptions, manufacturing industry, packing workstation, robotic aid, WRMSD, NMQ, RULA
DOI: 10.3233/WOR-203144
Citation: Work, vol. 66, no. 1, pp. 229-237, 2020
Authors: Heidarimoghaddam, Rashid | Dianat, Iman | Mosaferchi, Saeedeh | Mortezapour, Alireza
Article Type: Research Article
DOI: 10.3233/WOR-203143
Citation: Work, vol. 66, no. 1, pp. 239-242, 2020
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