title: Investigation of the relation between low back pain and occupation. 3. Physical requirements: sitting, standing and weight lifting.
mesh_terms: D001416:Back Pain / Q000209:etiology*; D006801:Humans; D008161:Lumbosacral Region; D009784:Occupational Diseases / Q000209:etiology*; D009790:Occupations; D011187:Posture; D013314:Stress, Mechanical; D013997:Time Factors