Effects of Instrumental and Manipulative Techniques for the Suboccipital Region in Subjects With Chronic Mechanical Neck Pain

The therapist will seat at the patient's head height and place his second, third, fourth and fifth fingertips'over the patient's suboccipital area during a 10-minute period.

The therapist will place the INYBI at the suboccipital area, specifically placing the fingers of the instrument at the lower border of the occipital. If needed, a rolled towel will be placed behind the INYBI, in order to maintain the physiological lordosis, checking out that the patient doesn't make a cervical extension. Then the therapist will press the vibration button and turn it off after 10 minutes. All patients will receive the treatment with the INYBI's hardest head with a 50 HZ frequency.

The participant will also be treated with the INYBI during a 10-minute period. After that, the therapist will carry out the upper cervical manipulation technique. Keeping the patient's head on an upper cervical flexion position, the therapist will turn his/her head to the maximum possible rotation, always maintaining its longitudinal axis. Once this is done, a high velocity and short articular amplitude manipulation in rotation will be carried out