Humanics Ergonomics

RULA: Grand total score

In: Lueder, R (1996) A Proposed RULA for Computer Users. Proceedings of the Ergonomics Summer Workshop, UC Berkeley Center for Occupational & Environmental Health Continuing Education Program, San Francisco, August 8-9, 1996.

Grand Total Score C Score D = Scores from Table B + Muscle Use + Force
Score C*	1	2	3	4	5	6	7	8	9
1	1	2	3	3	4	5	5	5	5
2	2	2	3	4	4	5	5	5	5
2	2	2	3	4	4	5	5	5	5
3	3	3	3	4	4	5	6	6	6
4	3	3	3	4	5	6	6	6	6
5	4	4	4	5	6	7	7	7	7
6	4	4	5	6	6	7	7	7	7
7	5	5	6	6	7	7	7	7	7
8	5	5	6	7	7	7	7	7	7
9	5	5	6	7	7	7	7	7	7

Where Score C = Upper Limb Posture from Table A + Muscle Use (center / right) + Force (center / right)

Action Level One:

A score of one or two indicates that posture is acceptable if it is not maintained or repeated for long periods of time.

Action Level Two:

A score of three or four indicates that further investigation is needed and changes may be required.

Action Level Three:

A score of five or six indicates investigation and changes are required soon.

Action Level Four:

A score of seven or more indicates investigation and changes are required.

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Humanics Ergonomics

RULA: Grand total score

Grand Total Score C

Score D = Scores from Table B + Muscle Use + Force

Where Score C = Upper Limb Posture from Table A + Muscle Use (center / right) + Force (center / right)