Musculoskeletal disorders and posture analysis at workstations using evaluation techniques

Abstract

Introduction: Despite the global awareness of sustainable use of ergonomics in reducing musculoskeletal disorders and increasing productivity at work, ergonomic considerations in developing countries are not taken seriously. This study aimed to analyze musculoskeletal disorders and ergonomic assessment of manufacturing companies in Qazvin, Alborz Industrial City. Materials and Methods: This cross-sectional descriptive study examined 35 workstations. Data were collected through interviews with individuals who completed the Body Map questionnaire and were analyzed using SPSS 17 software. Then the results of imaging workstations and direct observation were analyzed using Win owas, Nexgen softwares. Results: 71 questionnaires were filled in and analyzed. The results showed that the body posture of individuals at work is 40 percent standing and 29 percent repetitive. According to the results of the studies conducted on the organs under consideration, the most pain has been observed in the middle back, right leg and left leg, respectively. The relationship between job variables and musculoskeletal disorders was evaluated and just pain in the right shoulder was significantly associated with the job. The relationship between age and pain in the upper back, between the fingers of the left hand and left leg was significantly (P<0.05). No significant relationship was found between demographic variables and other musculoskeletal disorders. Conclusion: The survey of the workstations revealed that filters, engine, chassis welding and molding jobs have more risk factors for musculoskeletal disorders than other jobs.

Keywords

• musculoskeletal disease
• posture
• analysis