Fig. 2.

A: change in shoulder (left), elbow (center), and wrist (right) angle after small (1.5 Nm), medium (3.0 Nm), and large (4.5 Nm) extension perturbations applied at the elbow. Dotted and solid lines denote IN and OUT target conditions, respectively. Data are aligned to perturbation onset. B: same format as A but for flexion loads.