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. Author manuscript; available in PMC: 2019 Sep 23.
Published in final edited form as: Ergonomics. 2009 Dec;52(12):1568–1575. doi: 10.1080/00140130903287999

Figure 1.

Figure 1.

A typical posture for push/pull exertions. Reaction forces (Fz, reaction and Fy, reaction) from push/pull force (Fz) and vertical force (Fy) exertions generate an external moment about the wrist joint (Mexternal).