JSI, REBA, RULA - Cornell University Ergonomics Web

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DEA4700 © Professor Alan Hedge, Cornell University, January 2014 4. Hand/Wrist Posture Hand/Wrist Posture is an estimate of the position of the hand or wrist relative to neutral position. Guidelines for assigning a rating criterion are presented in the following table. Rating Criterion Wrist Extension A Wrist Flexion A Ulnar Deviation A Perceived Posture Very Good 0 o -10 o 0 o -5 o 0 o -10 o perfectly neutral Good 11 o -25 o 6 o -15 o 11 o -15 o near neutral Fair 26 o -40 o 16 o -30 o 16 o -20 o nonneutral Bad 41 o -55 o 31 o -50 o 21 o -25 o marked deviation Very Bad >60 o >50 o >25 o near extreme A From derived from data. Moore, J.S. and Garg, A. (1995) American Industrial Hygiene Journal 56:443-58.
DEA4700 © Professor Alan Hedge, Cornell University, January 2014 5. Speed of Work Speed of Work is an estimate of how fast the worker is working. Guidelines for assigning a rating criterion are presented in the following table. Rating Criterion Compared to MTM-1 A Perceived Speed Very Slow 115% rushed and barely or unable to keep up A The observed pace is divided by MTM-1's predicted pace and expressed as a percentage of predicted. Moore, J.S. and Garg, A. (1995) American Industrial Hygiene Journal 56:443-58.
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JSI, REBA, RULA - Cornell University Ergonomics Web

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