Balance System Protocol Stroke differentiates 2 levels of difficulty in relation to the patient's condition and progressively according to their evolution. If the patient maintains stability in standing for at least 30 s, he starts in Level 2 and otherwise he will remain in Level 1 until he acquires it. In level 1 the progression of exercises is: 1.Pressure stimulation of the foot support points; 2.Proprioceptive ankle work; 3.Sit-to-stand work and vice versa; 4.Sit-to-stand work with delayed affection. In level 2, the progression of exercises is: 1.Standing unbalances; 2.Standing on Balance-pad; 3.Work to get monopodal support; 4.Balance pad in monopodal support; 5.Monopodal support work with closed eyes.

The program of Control Stroke arm is based on an integral and rehabilitative approach in which the patient follows a personalized plan of exercises and therapies according to the deficits of each patient, the previous situation, the personal concerns with In order to perform a person-centered approach.

This arm perform 5 sessions of 1 hour a week. All sessions will be performed by the same physiotherapist. One session consists of 45 minutes of regular physiotherapy and 15 minutes in which exercises will be carried out focused on the balance systems, following the program that is detailed below.

The main aim of the study is to test that evaluates the dynamic balance with Mini Balance Evaluation Systems Test. It is an essay that lasts for about 10 minutes, which makes the patient not find a tiredness. It consists of four sections with a total of 14 elements that evaluate each of the systems elements of the balance: biomechanical limitations, stability limits, postural responses, posterior adjustments anticipatory, sensory orientation, dynamic balance and cognitive effects during gait.

It is score by assigning 2 points if the performance is normal, 1 point if the deficit is moderate and 0 points if the deficit is severe. In the case that the patient needs external support, on point will be subtracted from the score obtained on the category evaluated. Finally, if the patient need help from the physiotherapist, the category will be scored as 0 points. The paretic and the non-paretic side will be assessed, and the worse scored will be recorded.

It will also be evaluated through the Mini Balance Evaluation Systems Test (Mini BESTest)

Measured by the Berg Balance Scale (BBS) The Berg is a widely used test for assessing balance and to predict falls risk in the elderly. It has been validated with post-stroke patients. The Berg consists of 14 items, each scored from 0-4. Thus a score for the Berg could in theory range from a minimum of 0 to a maximum of 56. A score below 45 is indicative of balance impairment; thus the lower the score the greater the falls risk. We computed the slopes (i.e. rates of change from baseline to 3-months and 6-months) using a random effect ANOVA (random intercept and random slope), and determined if the slopes were different using unpaired Student's t-tests.