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(A) Hand paths separated by target for non-dominant and dominant arms for a representative subject from each age group (old = top, young = bottom). Parametric measures of (B) Hand path curvature, (C) Absolute final position error, (D) Variable error, across subjects (mean±SE), for non-dominant (ND) and dominant (D) arms across subject groups’ young (gray) and old (black) subjects.
