ABSTRACT
<p><b>OBJECTIVE</b>To investigate the morbidity and influence factors of work-related musculoskeletal disorders (WMSD) in oil drillers.</p><p><b>METHODS</b>The modified Nordic Standardized Questionnaire for WMSD was used to perform the epidemiological investigation in 860 oil drillers.</p><p><b>RESULTS</b>The predominant sites of WMSD in the oil drillers were waist (50.6%), neck (29.8%) and shoulder (23.4%), respectively. There were significant differences of the WMSD morbidities in all body sites except for wrist and hip among groups with different working years (P < 0.05 of P < 0.01). The WMSD morbidities in the neck, shoulder, back and waist of oil drillers working for more than 40h a week were significantly higher than those of oil drillers working for less than 40 ha week (P < 0.05). The results of logistic regression analysis revealed that some occupational factors, i.e. keeping stoop and stand for long time, repeating trunk bend, keeping awkward lift posture and lifting the heave objects, were the risk factors for WMSD at waist (P < 0.05), also some management factors, i.e. overtime work and inadequate rest, were the risk factors for WMSD at waist (P < 0.05).</p><p><b>CONCLUSION</b>The WMSD appears to be a serious ergonomic problem in oil drillers, it is necessary to correct working posture, reduce working load, improve organizational management, and encourage a workplace health program with regular work and rest.</p>
Subject(s)
Adult , Humans , Male , Middle Aged , Young Adult , Ergonomics , Morbidity , Musculoskeletal Diseases , Occupational Diseases , Occupational Health , Petroleum , Risk Factors , Workload , WorkplaceABSTRACT
<p><b>OBJECTIVE</b>To investigate the interactive effect of job task and psychosocial factors on the outcomes of musculoskeletal disorders.</p><p><b>METHODS</b>653 workers from different type of manufacturing industries and administration office recruited in a cross-sectional epidemiological survey. The Quick Exposure Check (QEC) was applied to assess the ergonomic load of job task, Job Content Questionnaire (JCQ) for identifying psychological characteristics, and Nordic Standardized Questionnaire for investigating outcomes of WMSDs.</p><p><b>RESULTS</b>The prevalence of WMSD in shoulder, upper back, lower back and hand/wrist were significantly different under a variety of combined job task and psychosocial characteristics (P < 0.05 or P < 0.01). The more physical and psychological loads, the higher prevalence of WMSDs were revealed. By using multivariate analyses, a potential interactive effect was found in terms of the WMSDs symptoms in hand/wrist, shoulder, upper back and lower back after adjusted by work year, age, and gender.</p><p><b>CONCLUSIONS</b>Higher physical load and greater psychosocial risk are more frequent self-reported symptoms of WMSDs than those of lower exposures. Ergonomic intervention strategies aimed at reducing the incidence of WMSDs should not only be focused on control of physical work factors but also psychosocial risks of relevance.</p>