نتایج جستجو برای: physical exposures
تعداد نتایج: 694226 فیلتر نتایج به سال:
OBJECTIVE To examine associations between workplace injury and musculoskeletal disorder (MSD) risk and expert ratings of job-level psychosocial demand and job control, adjusting for job-level physical demand. METHODS Among a cohort of 9260 aluminium manufacturing workers in jobs for which expert ratings of job-level physical and psychological demand and control were obtained during the 2 year...
Introduction: Metro driving is one of the newest jobs in Iran. There are few studies in this field. Therefore, the physical workload and their influencing factors have not been identified in metro driving. The objective of this study was task and physical workload analysis of metro driving to recommend control measures. Material and Method: In this mixed method study, task analysis and Qui...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
OBJECTIVES To determine, in a population based study, the influence of occupational factors on the occurrence of shoulder pain and disability. METHODS A random sample of patients was selected from the register of a general practice in the Greater Manchester area of the United Kingdom. Information was collected by a posted questionnaire with specific enquiries about symptoms in the shoulder re...
INTRODUCTION Although previous studies have related occupational exposure and epicondylitis, the evidence is moderate and mostly based on cross-sectional studies. Suspected physical exposures were tested over a 3-year period in a large longitudinal cohort study of workers in the USA. METHOD In a population-based study including a variety of industries, 1107 newly employed workers were examine...
BACKGROUND Due to difficulties in performing direct measurements as an exposure assessment technique, evidence supporting an association between physical exposures such as neck and shoulder muscle activities and postures and musculoskeletal disorders during computer use is limited. Alternative exposure assessment techniques are needed. METHODS We predicted the median and range of amplitude (9...
Psychological stressors are social and physical environmental circumstances that challenge the adaptive capabilities and resources of an organism. These circumstances represent an extremely wide and varied array of different situations that possess both common and specific psychological and physical attributes. The challenge for theory, research, and practice is to abstract and understand the s...
Quantification of childhood adversity has typically involved a cumulative risk approach in which total number discrete adversities serves as an index overall risk. However, this fails to account for the growing evidence differential outcomes following exposure adversities. An alternative adopts dimensional perspective, with distinct developmental impacts associated threat (violence/abuse) and d...
Prospective cohorts have played a major role in understanding the contribution of diet, physical activity, medical conditions, and genes to the development of many diseases, but have not been widely used for occupational exposures. Studies in agriculture are an exception. We draw upon our experience using this design to study agricultural workers to identify conditions that might foster use of ...
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