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MAP20071019300Burdorf, AlexPostural load and back pain of workers in the manufacturing of prefabricated concrete elements / Alex Burdorf, Guido Govaert and Leo EldersSumario: In a population of male workers in a concrete manufacturing plant (n=114), the occurrence of back pain was studied in relation to a control group of maintenance engineers (n=52). Postural load of workers in both plants were measured using the Ovako Working posture Analysis System. The results of this study also suggest that exposure to whole-body vibration, due to operating vibrotables, is a second risk factor for back painEn: Ergonomics. - London and Washington. - Vol. 34, nº 7, July 1991 ; p. 909-9181. Ergonomía. 2. Biomecánica. 3. Columna vertebral. 4. Fuerza muscular. 5. Contracciones musculares. 6. Fisiología. 7. Postura. 8. Vibraciones. 9. Lesiones musculares. 10. Epidemiología. 11. Casos prácticos. 12. Manufacturas. 13. Holanda. I. Govaert, Guido. II. Elders, Leo. III. Title. IV. Título: Ergonomics.