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. Author manuscript; available in PMC: 2015 Oct 15.
Published in final edited form as: Hum Factors. 2014 Feb;56(1):203–214. doi: 10.1177/0018720813502223

TABLE 5.

Provisional Recommended Weight Limit (RWL) Values (pounds) for the Clinical Guidelines

Infrequent Lifting Repetitive Short Duration Repetitive Long Duration

Vertical Zone Closea Medium Extended Closea Medium Extended Closea Medium Extended
Shoulder 30 21 17 25 18 14 15 10 9
Waist 36 26 20 30 22 17 18 13 10
Knee 32 23 18 27 20 16 16 11 9
a

RWL values in the “close” lifting zone are not applicable at 20 weeks gestation or more.