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. Author manuscript; available in PMC: 2013 Apr 11.
Published in final edited form as: Exp Brain Res. 2011 Dec 1;216(4):591–607. doi: 10.1007/s00221-011-2963-x

Figure 2.

Figure 2

Figure 2

The differences between the coefficients in the cost functions computed based on the before-fatigue and during-fatigue conditions for a: the second-order (wi) and b: the first-order terms (ki) for individual subjects. The positive values mean that coefficients increased during fatigue, while negative values mean that coefficients decreased during fatigue. i = {I – index, M – middle, R – ring, L – little}.