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MAP20071020639Yu, Chi-YuangDevelopment of a work seat for industrial sewing operations : results of a laboratory study / Chi-Yuang Yu, W. Monroe Keyserling and Don B. ChaffinSumario: A hydraulically adjustable chair with seven independent variables - seat heigh, seat angle, seat rocking, seat swivel, back-rest distance, back rest heigh and back-rest angle - was constructed to evaluate comfort and biomechanical factors relevant to the design of a chair for industrial sewing operations. The purpose of this investigation was to determine which of these factors were significantEn: Ergonomics. - London [etc.]. - Vol. 31, nº 12, December 1988 ; p. 1765-17861. Ergonomía. 2. Biomecánica. 3. Columna vertebral. 4. Postura. 5. Asientos. 6. Diseño. 7. Sillas. I. Keyserling, W. Monroe. II. Chaffin, Don B.. III. Título. IV. Título: Ergonomics.