Each session will last 5 minutes for each subject, taking place two sessions a week, in a period of 6 weeks. The intervention will be made at the beginning of the training session. The technique will be carried out with the subjects in the positions of supine, prone and lateral position, for the flexor muscles of the hip, hamstrings and quadriceps, where the musculature and the joint to be treated will be taken to a range of functional mobility

Each session will last 5 minutes for each subject, taking place two sessions a week, in a period of 6 weeks. The intervention will be made at the beginning of the training session. It will be done for the hip, quadriceps and hamstring muscles with a voluntary antagonist activation to relax the agonist muscle.

The technique will be carried out with the subjects in the positions of supine, prone and lateral position, for the flexor muscles of the hip, hamstrings and quadriceps, where the musculature and the joint to be treated will be taken to a range of functional mobility. The subject will be asked to perform an isometric contraction, with a series of 3 seconds for sustained contraction and a rest between contraction of 2 to 3 seconds after activating the Golgi apparatus, making an inhibition of the stimulus and bringing the joint and muscle to the highest possible range of motion without pain.

The measurement instrument to measure the flexibility of the hamstring muscles is the passive elevation of the straight leg with an inclinometer (model ISOMED, Inc., Portland, OR) to be placed on the tibia (as distal as possible). The physiotherapist will maintain the extension of the knee and the leg will be lifted by the evaluator to a hip flexion, until the subject indicates pain in the hamstring muscles, when the evaluator perceives hip flexion restriction or when a posterior pelvic tilt occurs. The contralateral knee of the subject will remain in extension. The unit of measurement of the test is the maximum angle read from the inclinometer at the point of maximum flexibility, in degrees, with the normative range of 75 to 80 degrees (the greater the degree of flexibility, the greater the flexibility).

The range of motion of the hip will be evaluated using a universal long arm goniometer. The hip flexion will be measured with the goniometer as the deviation from the neutral zero position in which the lower extremity and the trunk are in the horizontal plane. The fixed arm of the goniometer will be aligned on the horizontal axis of the body, while the mobile arm of the goniometer will be aligned on the lateral midline of the thigh, placing the goniometer support axis on the greater trochanter. Hip adduction and hip abduction will be measured from the neutral zero position in which the longitudinal axis of the thigh is perpendicular to the transverse line through the anterior superior iliac spines of the pelvis. The contralateral leg will be hanging over the edge of the stretcher. The unit of measurement for this test is the grade, with a range of normative movement from 0 to 50 degrees (the higher the graduation, the greater the mobility of the hip).