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. Author manuscript; available in PMC: 2021 Nov 3.
Published in final edited form as: Hum Factors. 2014 Jun;56(4):669–683. doi: 10.1177/0018720813509268

TABLE 4:

Manual Handling Actions

Model
Input
Manual Handling From Postures,
Activities, Tools, and Handling
Method
Wu 1 /Wi 1 <4.55 kg
Wu 1 /Wi 2 ≥4.55 to ≤22.68 kg
Wu 1 /Wi 3 >22.68 kg