The tailored motor control intervention used for motor learning-procedure described by Fitts and Posner, further developed and adapted to rehabilitation of the spine by O´Sullivan.

The stages involved in the process was the Cognitive stage, Associative stage and the Autonomous stage

The craniovertebral (CV) -angle was used to estimate the cervical curvature and head posture in relation to the thorax being measured with the Head Posture Spinal Curvature Instrument

The Cranio-Cervical Flexion Test (C-CFT) was used to assess the tonic holding abilities of the deep cervical muscles by using a Pressure biofeedback unit.

The Neck Disability Index (NDI) is a self-reported questionnaire with 10 categories where each question estimates the current status, from no disability (0) to full disability within that category used to assess disability.

The category Relation to Body Center (items Postural activity, Deviation in standing, Stability in stance and In sitting) and Relation to Ground (items Contact surface, Load, Stance on one leg) from the Body Awareness Scale (BAS) was used to measure the theoretical plumb line perpendicular to the body´s center to estimate the ability to maintain a neutral posture.