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Prediction of Musculoskeletal Discomfort in a Pick and Place Task (A pilot study)

Kruizinga C. P., Delleman N. J., Schellekens J. M. H.

International Journal of Occupational Safety and Ergonomics

1998

Vol. 4, No. 3

271--286

A pilot study was conducted regarding the effects of working posture, handling frequency, and task duration on musculoskeletal discomfort. Participants rated their discomfort perceived while performing a repetitive task at 8 different combinations of manipulations. Pauses between the work periods lasted 15 min. Discomfort was rated according to Borg’s category-ratio scale CR-10 and postures were recorded by an optoelectronic movement registration system. From linear multiple regression analysis equations for predicting discomfort at various body regions were obtained. Coefficients of determination especially point to trunk inclination and handling frequency as major determinants of musculoskeletal discomfort.