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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Exp Brain Res. 2009 May 12;197(1):1–13. doi: 10.1007/s00221-009-1818-1

Figure 4.

Figure 4

The increase in VF normal force with an increase in the load. (a) Regression lines showing the increase in the VF normal force with an increase in the load, for a typical subject (b) Hysteresis loops for 3 external torque conditions for a typical subject. The (*) indicates the beginning of the trial, and the (+) the end of the trial. (c) The mean and standard error of the slope of the normal force vs. the load force, averaged across subjects, as a function of the torque for the force increase.