Work-related musculoskeletal disorders (WMSDs) are among the main causes of incapacity at work [1], which is a worldwide health concern in industrialized and industrially developing countries [2-4]. In the past decade, work-related activities have been considered to be a major cause of WMSDs [5, 6]. The imbalance of occupational demands with the ability to work have contributed to the high prevalence of WMSDs, which may develop gradually within days, weeks, months or even years after exposure to unfavorable working conditions [7-9]. Some of the main risk factors for WMSDs are workplace activities such as manual handling, bending, twisting, work pace, repetitive tasks, heavy load lifting, awkward posture, and seated static postures. Furthermore, individual characteristics and cognitive and psychosocial factors are considered to be the important predictive variables in this regard [1, 4, 10, 11].