The patients will be submitted to 15 therapeutical sessions two times per week with length of 40 minutes for motor physiotherapy . Each session of the motor physiotherapy will be constituted of exercises that include stretching (emphasizing the front of the torso), reinforcement (with emphasis in inferior members extensores); active exercises as transference (for example, to put into motion it bed or uprising of a chair), to reach and to grasp and training of balance and march.

In the group submitted to the mental Practice the sessions will be individualized and occur in tranquil room after physical therapy (Same performed with the control group). During the mental practice the patient will be guided to stand, where he will be requested initially to identify and to sequencer the necessary joints for the accomplishment of an only step, being they:flexion of the thigh and leg rights, extension of the right leg more dorsiflexed of the right foot; touch of the heel and discharge of weight of the right foot and inclined body to the front. The sessions occur two times per week during 15 minutes.

It is an instrument of functional mobility assessment, the Dynamic Gait Index (DGI), aims to evaluate and document the patient's ability to modify the march in response to changing demands of certain tasks. DGI consists of eight tasks involving gait in different sensorial contexts, which include flat surface, changes in gait speed, horizontal and vertical movements of the head, go over and around obstacles; turn on your own body axis, up and down stairs. Each patients is assessed by means of an ordinal scale with 4 categories and scored according to his/her own performance in each task: 3 = normal gait, 2 = slight impairment, 1 = moderate impairment and 0 = severe impairment. Maximum scoring is 24 points, and a score of 19 points or less is able to predict a risk of falls.

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The Tine up and Go Test (TUG) is used to assess risk of falls. To perform the test the patient will be instructed to sit with his back on an unsupported chair arms and the examiner will give the verbal command "go" in which the patient will get up and go a distance of three meters , returning and sitting in the same chair with your back supported.Shorter values than 10 seconds to perform the test indicate low risk of falls, values between 10 to 20 seconds indicate medium risk of falls and greater than 20 seconds represent high risk for falls

The walk test of 10 m is a tool used to evaluate the spatial and temporal attributes kinematic gait, as it will be evaluated the average speed of travel, number of steps and cadence. For the test will be placed markers in position 2 and 8 m. The patient will be instructed to walk at a comfortable pace from one extreme to another. A physical therapist will use the stopwatch to determine how long it takes for the patient to go through the central 6 meters of the route.