Musculoskeletal symptoms among truck assembly workers

Background Concerns were raised about the possibility of a high prevalence of musculoskeletal symptoms in a truck assembly plant. Aim The aim of this study was to investigate the prevalence of musculoskeletal symptoms in a group of truck assembly workers. Method A cross-sectional study of 461 truck assembly workers was carried out using a modified version of the Nordic questionnaire and the General Health Questionnaire (GHQ12). Employees were further subdivided into three distinct occupational subgroups: skilled line workers (252), bench subassembly workers (108) and material handlers (101). Responses were analysed according to occupational subgroup. Results Seventy per cent of 461 truck assembly workers responded to the questionnaires. Seventy-nine per cent of respondents had been troubled with musculoskeletal symptoms in the last 12 months. The commonest musculoskeletal symptoms were from the lower back (65%), neck (60%) and shoulders (57%). Musculoskeletal symptoms were related to age, length of service, occupational subgroup and GHQ 12 score. Conclusion There was a high reported prevalence of musculoskeletal symptoms in this group of truck assembly workers, with a differing pattern of symptom reporting depending on occupational subgroup. Risk reduction recommendations were made to the site management. A further study investigating the relationship between symptoms and specific hazards is planned.