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The DELOS Postural Proprioceptive System (DELOSs.r.l., Turin, Italy) was used for this study. The horizontal bar, the Delos Assistant Desk (DAD), fitted with an infra-red sensor, is set in front of the patient for hand support. The DAD measures the times and the duration of leaning the hands of the patient, expresses in terms of percentage providing information about the so called “precautionary strategy” that is the way the patients prevent falls, and regain the vertical posture.
