4th STAGE: As for the functional range of the MS paretic will be measured by the functional reach test, adapted to the sitting position, in which the individual will be sitting without armrest in the chair for the upper limb, positioned laterally to the wall, with shoulder 15 cm away from this without touching it at any time, with feet parallel in a comfortable position, keeping the shoulder near the wall flexed to 90 °. A tape measure is fixed parallel to the floor, positioned at the height of the acromion. The volunteer will then be instructed to lean forward as much as possible; the displacement to be measured on the tape with three attempts functional range, then obtaining the average of the three.