In the present study, 28 healthy young people will be selected, who will be evaluated by a blind investigator regarding the study objectives, and will be randomly included in two groups. The experimental group will consist of 14 subjects who will carry out 1 weekly session of 10 minutes and who will be evaluated just before starting the intervention, after it and at 4 weeks. The control group will be made up of 14 subjects who will be evaluated in the three periods described without the need to carry out the intervention.

The intervention will be carried out for 4 weeks, with 1 weekly session of 10 minutes duration. The patient will go to the intervention room where the treatment procedure will be explained in detail. He will be explained verbally and with a visual demonstration of what the technique consists of and how it is going to be performed, the position that he has to adopt during and how long the intervention will last.

The intervention consists of the application of a myofascial technique in the diaphragmatic region, one hand of the therapist will be placed on the hemidiaphragm to be treated and the other hand on the same side but on the dorsal part of the patient on the costal edge of the last ribs.

The patient will be asked to focus on their own breathing and the contact that the therapist will apply.

In the subjects of the control group, the hands will be placed in the same position but without any therapeutic intention, applying the minimum possible pressure.

Inclusion Criteria:

• Healthy people
• no spinal pathology
• no respiratory pathology

Exclusion Criteria:

• have suffered spinal pathologies in the last 3 months
• have suffered respiratory diseases in the last 3 months