As part of the rehabilitation techniques, robotic equipment has been introduced for the rehabilitation of the upper extremity with promising results. In this context, the ALBA® devise for the training of the upper extremity is used in this project. This randomized controlled trial will compare a control group (n=16) with an experimental group (n=16) of adults with hemiparesis secondary to an acquired brain lesion. A convenience sample of inpatient will be selected from Los Coihues clinic after concealing the inclusion and exclusion criteria. All participants will perform 45 minutes of training, 5 days a week, for 4 weeks, 20 sessions total. The control group will receive 100% conventional treatment while the experimental group will receive 20 minutes of conventional treatment associated with 25 minutes of ALBA® training. Assessments will be taken before training (t1), at 4 weeks (t2), and at 3 months (t3).
Inclusion Criteria: Patients of Los Coihues clinic Diagnosis of acquired brain injury. Cognitive capacity and language that allows understanding and following the therapist's instructions. Trunk control. Subacute and chronic stage (up to 2 years post injury). Upper extremity paresis able to perform movements with eliminated gravity (modified MRC 2). Exclusion Criteria: Cardiovascular instability Visual or acoustic limitations. Severe hypertonia (≥3 Ashworth Scale). Upper extremity with passive joint limitation and/or traumatic injury. Neuropsychological alteration (global aphasia, severe attentional deficit, spatial perception alteration). Moderate to severe cognitive-behavioral alterations that do not allow the understanding of instructions. Severe alterations of consciousness. Deficit in cephalic control. Severe deficit in sedentary balance.