Study: NCT04193423

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Neck extensors training versus deep cervical flexors training, compared to a control group.
Description: During the first month, the participants of the experimental groups will come at Rehabilitation Service to do the exercises individually and supervised by the physiotherapist and to received the conventional treatment (10 minutes of infrared heat, 10 minutes of massage and 15 minutes of TENS). The last six months, they will perform daily home exercises.~* A-group: the degrees respect to the floor in wich each participant can hold the craniocervical extension and the cervicothoracic extension during 5 seconds will bo measured with the BDI.~* B-group: Using an air-filled pressure sensor placed behind the neck, the physiotherapist will identify the target level that the patient can hold steadily a craniocervical flexion (CCF) for 5 seconds in a controlled manner. They will train following the protocol described by Jull et al.~Of each of this exercises, they will perform 10 isometric contractions, at the corresponding degrees or target level, of 10 seconds with a rest of 3-5 seconds.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Neck extensors training versus deep cervical flexors training, compared to a control group.
Description: During the first month, the participants of the experimental groups will come at Rehabilitation Service to do the exercises individually and supervised by the physiotherapist and to received the conventional treatment (10 minutes of infrared heat, 10 minutes of massage and 15 minutes of TENS). The last six months, they will perform daily home exercises.~* A-group: the degrees respect to the floor in wich each participant can hold the craniocervical extension and the cervicothoracic extension during 5 seconds will bo measured with the BDI.~* B-group: Using an air-filled pressure sensor placed behind the neck, the physiotherapist will identify the target level that the patient can hold steadily a craniocervical flexion (CCF) for 5 seconds in a controlled manner. They will train following the protocol described by Jull et al.~Of each of this exercises, they will perform 10 isometric contractions, at the corresponding degrees or target level, of 10 seconds with a rest of 3-5 seconds.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Neck extensors training versus deep cervical flexors training, compared to a control group.
Description: During the first month, the participants of the experimental groups will come at Rehabilitation Service to do the exercises individually and supervised by the physiotherapist and to received the conventional treatment (10 minutes of infrared heat, 10 minutes of massage and 15 minutes of TENS). The last six months, they will perform daily home exercises.~* A-group: the degrees respect to the floor in wich each participant can hold the craniocervical extension and the cervicothoracic extension during 5 seconds will bo measured with the BDI.~* B-group: Using an air-filled pressure sensor placed behind the neck, the physiotherapist will identify the target level that the patient can hold steadily a craniocervical flexion (CCF) for 5 seconds in a controlled manner. They will train following the protocol described by Jull et al.~Of each of this exercises, they will perform 10 isometric contractions, at the corresponding degrees or target level, of 10 seconds with a rest of 3-5 seconds.