Validity of self-reported duration of work postures obtained by interview. MUSIC-Norrtälje Study Group

Appl Ergon. 1999 Dec;30(6):477-86. doi: 10.1016/s0003-6870(99)00018-6.


The aim of the study was to validate interview data concerning the duration of four work postures (1) sitting, (2) standing/walking with hands above shoulder level, (3) standing/walking with hands between shoulder and knuckle level, and (4) standing/walking with hands below knuckle level. The self-reported time spent in each posture was tested in relation to observations and technical measurements in 20 subjects during two full working days. The linear relationships between self-reports and observations were strong for the three postures; sitting (r2 = 0.55), hands above shoulder level (r2 = 0.58) and hands below knuckle level (r2 = 0.69). Thus, using this interview technique, self-reports concerning time spent in (1) sitting, (2) standing/walking with hands above shoulder level and, (3) standing/walking with hands below knuckle level may be accurate enough for studying these work postures in epidemiological studies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anthropometry
  • Back Pain / etiology
  • Data Collection / methods
  • Data Collection / standards
  • Female
  • Humans
  • Interviews as Topic / standards*
  • Job Description
  • Linear Models
  • Male
  • Middle Aged
  • Neck Pain / etiology
  • Occupational Diseases / etiology
  • Occupational Exposure / analysis
  • Occupations
  • Posture*
  • Reproducibility of Results
  • Risk Factors
  • Time Factors
  • Time and Motion Studies*
  • Work / physiology*
  • Work / psychology