Objective Musculoskeletal disorders are a wide range of symptoms including pain and disability that are related to workspace and devices. Repeated activity, adopting fixed and inappropriate postures for a long time and activities including powerful movements of extremities are factors associated with WRMSDs. It seems professional drivers suffer from shoulder and upper extremities symptoms becau...

Background and aims: The present study was conducted to assess the role of sleepiness during the day (ESS) and sleep apnea in road accidents in Shahroud drivers. Methods: In this cross-sectional study, 312 drivers of members of Shahroud's terminals were studied in 1392. Demographic, Pittsburgh Sleep Quality Index (PSQI) standard questionnaire with seven scales, Epworth Sleepiness Scale (ESS) qu...

Introduction: Examining the effect of bus drivers’ demographic characteristics as well as workplace conditions on their traffic behavior and performance is important not only for drivers’ health and safety, but also for the safety of bus passengers. The aim of this study was to investigate the relationship between demographic variables and work shift schedule on the behaviors pertaining to “haz...

Backgrounds and Objectives: Noise in large cities is considered by the World Health Organization to be the third most hazardous type of pollution. Buses are an interesting object of study in the theme of noise pollution. They are at the same time a source of urban environmental (traffic) noise and occupational noise exposure source for drivers. The object of this study is Occupational noise exp...