Each session will last 10 minutes, taking place 3 days a week, over a period of 6 weeks. The intervention will take place at the beginning of the training session. The intervention will be carried out in 3 sessions with 3 exercises of 15 repetitions, and with breaks of 40 seconds between each series and exercise.

Exercise 1. In quadruped position, keeping the back flat, making an isometric contraction of the transverse muscle, and raising one arm and one leg contralaterally.

Exercise 2. Training of the deep cervical flexor muscles, supine. Players will move their heads slowly towards craniocervical flexion.

Exercise 3. In standing position, an ocular-cervical coordination exercise by means of a cranio-cervical flexion, adding a rotation, guided by an eye feedback provided by the physiotherapist by means of a laser projected on a wall.

Athletes in the control group will be asked to follow their usual warm-up routine.

The intervention through motor control will consist in the application of the protocol described by Hidalgo-Peréz et al. The objective of the application of the technique is to produce an increase in the strength of the deep cervical musculature. The exercises will be performed with the subject in different positions: supine, quadrupedic and standing position. The physiotherapist will be placed in standing position in front of the subject. The intervention will be carried out in 3 sessions with 3 exercises of 15 repetitions, and with breaks of 40 seconds between each series and exercise.

An assessment will be carried out with a pressure gauge (Stabilizer model). It will be used according to the protocol indicated by Hudswell et al. The athlete will be positioned supine. The pressure gauge will be placed on the stretcher in the posterior cervical area, asking the subject for a craniocervical flexion. The unit of measure of this measuring instrument is mmHg. A higher score indicates greater strength.

It will be done by administering the Borg scale. With this scale, the perception of effort will be measured. After the intervention, we will ask the athlete to assign a number from 0 to 10 to represent the subjective feeling of the amount of work done. The scoring range is from 0 to 10 points, where a higher score will indicate a greater perception of effort.