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. 2009 May 1;4(5):e5411. doi: 10.1371/journal.pone.0005411

Figure 7. Nonparametric estimates of endpoint impedance for a single experimental condition.

Figure 7

The subject's posture placed the hand at 190 mm in front of the sternum and had the shoulder abducted to 14°. (A) Nonparametric transfer functions (gray lines) and the corresponding second-order fits (black lines). (B) Multiple coherence functions for forces along each of the three measurement axes. Horizontal dashed lines (1.0) correspond to perfect coherence.