title: Development of trapezius myalgia among female workers performing light manual work.
abstract: The aim of this prospective study was to detect a possible development of trapezius myalgia likely to be work-related in initially healthy female packers. Symptoms were recorded on a five-step intensity scale in a daily diary and in an interview at ten-week intervals. All of the subjects were interviewed concerning assumed risk factors during work and leisure time, and a clinical examination was performed. Within their first year of employment, 17 of 30 subjects developed work-related trapezius myalgia of sufficient intensity to be classified as patients. The median time before a clinically confirmed patient status was 23 (range 6-51) weeks. The symptoms showed a fluctuating pattern, decreasing on the weekends and during some holidays. In conclusion, likely work-related trapezius myalgia of a nonchronic character showed a high one-year cumulative incidence at a plant with repetitive light work.
authors.affiliation: National Institute of Occupational Health, Department of Physiology, Oslo, Norway.
authors.forename: K B
authors.initials: KB
authors.lastname: Veiersted
authors.forename: R H
authors.initials: RH
authors.lastname: Westgaard
mesh_terms: D000328:Adult; D020968:Brachial Plexus Neuritis / Q000209:etiology*; D002099:Cacao; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D009334:Neck Muscles / Q000294:innervation; D009784:Occupational Diseases / Q000209:etiology*; D010147:Pain Measurement; D011446:Prospective Studies; D012782:Shoulder / Q000294:innervation; D016526:Workload