Abstract
In 1982-2001 physical load-related diseases contributed 49.4 % to occupational morbidity in Saint-Petersburg. In the study of 553 blue-collar worker jobs, 56.1 % were found to be connected with physical overloads. It makes the problem of health protection of workers occupationally exposed to unfavorable effects, including muscle strain and overstrain, particularly topical. The object of the study was the working conditions assessment in heavy physical load jobs. Working conditions of plasterers, sinkers, mechanical assemblers, assemblers of metal vessel hulls were studied. Working process severity was shown to be the major common factor for all those jobs.
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