Wyniki wyszukiwania - Biblioteka Nauki

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Ergonomics Intervention in an Iranian Tire Manufacturing Industry

100%

Motamedzade M.

International Journal of Occupational Safety and Ergonomics

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2013

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tom Vol. 19, No. 3

475--484

EN

The aim of an ergonomics intervention conducted in the tire manufacturing industry was to improve working conditions. Before the start, a senior manager supported the intervention. Participants were divided into teams and trained. After observing the overall performance of the teams, over 100 improvements were successfully implemented. After the improvements, there were statistically significant differences in annual and weekly prevalence of, and annual disability reported for, the upper back, the lower back, knees and wrists between before and after intervention. The annual prevalence of upper back, lower back, knee and wrist complaints decreased from, respectively, 60.3%, 50.2%, 28.9%, 25.8% before the intervention to 31.3%, 35.9%, 17.1%, 20.7% after the intervention. Significant factors were training and supportive environment based on full commitment of the top management.

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Effects of Physical and Personal Risk Factors on Sick Leave Due to Musculoskeletal Disorders

45%

Motamedzade M. , Faghih M. A. , Golmohammadi R. , Faradmal J. , Mohammadi H.

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tom Vol. 19, No. 4

513--521

EN

The purpose of this study was to investigate the effects of physical and personal risk factors on sick leave due to musculoskeletal disorders in an Iranian car company. In this cross-sectional study, 234 workers participated and all of them had sick leave due to musculoskeletal disorders in the past year. A physical risk factor checklist and personal information questionnaire were used as data-gathering tools. There was no significant relationship between physical risk factors and sick leave (p > .05). Cigarette smoking (p = .045), body mass index >30 (p = .046) and age (p = .044) showed a significant relationship with sick leave. Workers with lumbar deviation of 20°–60° (OR 1.10) and >60° (OR 1.11) were at greater risk. The ratios for workers with repetitive work (OR 1.30) and workers with force exertion (OR 1.36) were greater than for other workers. Taking preventive actions to improve the ergonomic working conditions of assembly workers and their lifestyle seems crucial.

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The role of burnout syndrome as a mediator for the effect of psychosocial risk factors on the intensity of musculoskeletal disorders: a structural equation modeling approach

45%

Gholami T. , Pahlavian A. H. , Akbarzadeh M. , Motamedzade M. , Moghaddam R. H.

International Journal of Occupational Safety and Ergonomics

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2016

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tom Vol. 22, No. 2

283--290

EN

This study examined the hypothesis that burnout syndrome mediates effects of psychosocial risk factors and intensity of musculoskeletal disorders (MSDs) among hospital nurses. The sample was composed of 415 nurses from various wards across five hospitals of Iran's Hamedan University of Medical Sciences. Data were collected through three questionnaires: job content questionnaire, Maslach burnout inventory and visual analogue scale. Results of structural equation modeling with a mediating effect showed that psychosocial risk factors were significantly related to changes in burnout, which in turn affects intensity of MSDs.

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The Impact of Participatory Ergonomics on Working Conditions, Quality, and Productivity

45%

Motamedzade M. , Shahnavaz H. , Kazemnejad A. , Azar A. , Karimi H.

International Journal of Occupational Safety and Ergonomics

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2003

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tom Vol. 9, No. 2

135--147

EN

A participatory ergonomics model was designed for improving working conditions, quality, and productivity in a medium-sized manufacturing enterprise by making use of Supportive Expert Team (SET). In order to implement the model, a team-based structure consisting of a Steering Committee (SC) and 2 Action Groups (AGs) was designed and a 5-phase methodology followed. To validate the model, a similar factory was selected as control. Performance of the model was successful throughout the project. AGs under the supervision of the SC and the support of the SET designed and implemented several ergonomics solutions using local resources. Our findings showed that, in comparison with the control factory, application of such a model could be considered as a provider of a more humanized work environment as well as a more efficient and cost-effective approach.

5

Manual Material Handling Assessment Among Workers of Iranian Casting Workshops

38%

Mohammadi H. , Motamedzade M. , Faghih M. A. , Bayat H. , Mohraz M. H. , Musavi S.

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tom Vol. 19, No. 4

675--681

EN

Manual material handling (MMH) tasks can be found in most workplaces and they may constitute a risk factor for work-related musculoskeletal disorders (WMSDs). This study was conducted to determine the prevalence of WMSDs and to compare MMH loads with the acceptable weight and force limits among Iranian casting workers. Data were collected from 50 workers of casting workshops who performed MMH tasks. The Nordic musculoskeletal disorders questionnaire and the Snook tables were used as tools for data collection. Hand/wrist symptoms were the most prevalent problems among the workers (84%). The results of the Snook tables showed that the loads in lifting (84%), lowering (86%), carrying (66%), pushing with initial (43%) and sustained force (59%), and pulling tasks with initial (48%) and sustained force (93%) exceeded recommended limits. WMSDs occurred in high rates among the workers and, thus, ergonomics interventions should focus on decreasing WMSDs and redesigning MMH tasks.

6

Association between psychosocial, organizational and personal factors and prevalence of musculoskeletal disorders in office workers

38%

Piranveyseh P. , Motamedzade M. , Osatuke K. , Mohammadfam I. , Moghimbeigi A. , Soltanzadeh A. , Mohammadi H.

International Journal of Occupational Safety and Ergonomics

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2016

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tom Vol. 22, No. 2

267--273

EN

The purpose of this study was to investigate the relationship between organizational and personal (individual) factors with the prevalence of musculoskeletal disorders (MSDs) in office workers of the Iranian Gas Transmission Company. The participants rated two questionnaires – the standardized Nordic Musculoskeletal Questionnaire to measure the prevalence of MSDs, and the Veterans Healthcare Administration All Employee Survey questionnaire (2004 version) – to measure psychosocial, organizational and individual aspects of job satisfaction and workplace climate. The highest prevalence of MSDs was found in the lower back (49.7%) and neck (49.0%) regions. Results of the logistic regression models showed that some psychosocial and organizational factors and also some individual factors were associated with prevalence of MSDs (p < 0.05).These ﬁndings illustrate the need to consider all elements of the work system as a whole in future studies and in organizational planning.