There is a lot of scientific evidence about the effectiveness of manual therapy and exercise / training in subjects with cervical pain. Most of the high quality systematic reviews agree on the need to combine manual therapy and exercise for the treatment of chronic cervical pain. However, articles that focus on manual therapy in the treatment of the upper cervical spine are not as common, being that the most commonly prescribed exercises are those of craniocervical flexion, (flexion of the upper cervical spine).

The investigators believe that participants who are going to benefit more from the integration of manual therapy and exercise will be those who have a real restriction of the upper cervical spine, and for these, is indispensable, the application of manual therapy techniques before the integration of the active exercise to obtain optimal results.

This project is going to try to define participants with chronic cervical pain and upper cervical spine restriction that may benefit more from the combination of manual therapy and exercise than the rest. The investigators are going to study changes in different variables about function, pain, ultrasound, muscle tone, joints... Strengthen the importance of specificity in physiotherapy interventions and increase the evidence on the importance of manual therapy in a subgroup of participants with chronic cervical pain, improve knowledge about the involvement of the upper cervical spine in cervical pathology and check the effectiveness of a self-treatment program for participants with chronic cervical pain.

The objective of this trial is to compare the effectiveness of an integrative approach of manual therapy associated with exercise versus exercise in participants with chronic cervical pain and upper cervical spine dysfunction.

For this purpose, the investigators conduct a randomized controlled trial, simple-blind (Only is possible to blind the evaluator).

The Sample size is 52 participants (2 groups of 26 participants). One of the groups will receive 4 training sessions with exercises for the cervical spine between 30 and 45 minutes duration per session and the other group will receive 4 sessions of a combination of manual therapy and training exercises also between 30 and 45 minutes each session. In addition, all participants will receive self-treatment techniques for self-management of their dysfunction.

Cervical exercises will consist of a set of training techniques to improve the function and symptomatology that the participant has. These exercises have been widely evidenced and do not suppose any health risk.

The techniques of manual therapy can be the manipulation technique in resting position, vertebral mobilization and / or musculature (massage and / or stretching). All the treatments applied follow the safety recommendations of the International Federation of Orthopedic Manual Therapists (IFOMPT). If participants need clarification, they can talk to the principal investigator (Jacobo Rodríguez Sanz) at any time.

One physiotherapist will perform the physical examination, and a different one will apply the treatment. Physical therapists doing the screening will not know which group has been assigned to them, so the participant will be asked not to provide the evaluators any information about the assignment of his group to improve the quality of the study.

The examination will consist of tests to assess whether the participant is a candidate to participate in the study, the measurement of pain, the exhaustive assessment of all cervical musculature with different measuring instruments and the measurement of joint mobility.

The first day theparticipant be given information about his pain, his daily habits and activities that he usually does.

The assessment of his problem will consist in the measurement of the amount of movement he can makes in the cervical area without pain, the ability to orient himself in certain movements with his eyes closed, the intensity of his pain, the evaluation of the state of his muscles. stabilizing as a mobilizer through ultrasound, muscle test and palpation. The functionality of his cervical vertebrae will also be evaluated and he will be asked different questionnaires about the functionality, pain and condition of his cervical pain, headache (in case of suffering) and kinesiophobia.

Both the evaluation and the treatment will be without pain. In addition, he will be given a series of personalized exercises to improve his problem, which must be done every day during the study.

Inclusion Criteria:

• 18 years old and over
• Medical diagnosis of chronic cervical pain (more than 3 months of cervical pain evolution)
• Positive flexion rotation test

Exclusion Criteria:

• Recent spine, head or mouth surgery.
• Diabetes mellitus
• Recent infection and/or inflammatory arthritis, and cervical and/or brain traumatism records.
• Contraindication for manual therapy or cervical training

Only the evaluator is blinded