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Relation of Work Stressors and Work-related MSDs among Indian Heavy Vehicle Drivers

Aims: The aim of the study was to identify the relation of work stressors and work-related musculoskeletal disorders (WRMSDs) among the heavy vehicle drivers. Methods and Material: The study involved 154 bus drivers and 161 truck drivers of India. A specially designed questionnaire was used to assess the physical and psychosocial work stresses, job diagnostics, driving hazards, physical environment, and WRMSDs. Statistical Analysis Used: The odds ratios (OR) and development percentage of the test measurements were calculated in the descriptive statistics. The binary logistic regression and Pearson correlation test were used for the data analysis. Results: The results of this study showed that the WRMSDs among the truck drivers were higher than those among the bus drivers. The bus drivers were more likely to develop pain in their arms, while the truck drivers were more likely to suffer from neck, shoulders, legs, lower back, and upper back pain. Results from statistical analysis indicated that age, driving hours, physical fatigue, vehicle design, domestic pressure, and growth opportunities had a significant impact on the development of WRMSDs in the bus drivers. While, in the case of truck drivers, it was found that driving hours, tenure, vibration, physical fatigue, mental overload, and job dissatisfaction were significant. Conclusions: The study concludes that the work stressors are associated with different types of MSDs, and the level of MSDs differs significantly between the bus and truck drivers.