Figure 1.

(a) The postural proprioceptive station [17]. The red line represents the infrared ray of the sensorized bar. Vest (A) to support the “postural reader” in (B) sternal position. (b, c) A subject on the electronic rocking base in single stance during a training session. (d) The real-time trace (yellow bars) of the rocking base (e) and the trace of the postural reader (blue line). Note the presence of precautionary strategy (red trace) and hypersupination in the first test (d) vs. the best test (f). (g, h) Static exploration of the ankle range of motion: maintaining vertical stability with the weight-bearing ankle in hyperpronation and in maximum dorsiflexion. (i) Orientation of the rocking base at -45° to affect different ranges of motion. (j, k, l, m) Dynamic exploration of the ankle range of motion: (j) supination (inversion); (k, l, m), attempting to maintain 4° of inclination (pronation, eversion). All subjects were asked to minimize postural instability (blue line).