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. Author manuscript; available in PMC: 2016 Jan 21.
Published in final edited form as: J Biomech. 2014 Dec 9;48(2):383–387. doi: 10.1016/j.jbiomech.2014.11.046

Fig. 2.

Fig. 2

The angle by which the digit force vector is deviated from the normal direction was computed as the arctangent of the ratio of total shear force to normal force.