2. Patients in the general exercise group performed exercises targeting all cervical extensor muscles including the superficial ones applying resistance at the head pushing against a wall or the therapist's hand or as a home exercise with the aid of a towel. As in the other group, these exercises were performed in sitting and standing in front of a table propped up on both forearms. In the latter position, the same dynamic exercise was added as in the other group with the only difference that the gaze was fixed at an object lying between both hands hoping to activate all cervical extensors.