Development of trapezius myalgia among female workers performing light manual work

Scand J Work Environ Health. 1993 Aug;19(4):277-83. doi: 10.5271/sjweh.1473.


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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Brachial Plexus Neuritis / etiology*
  • Cacao
  • Female
  • Follow-Up Studies
  • Humans
  • Neck Muscles* / innervation
  • Occupational Diseases / etiology*
  • Pain Measurement
  • Prospective Studies
  • Shoulder* / innervation
  • Workload