Neck Movement Training in a Virtual Reality Headset for People with Neck Pain - a Feasibility Study

Inclusion Criteria: * Ability to understand verbal and written Swedish * Persistent neck pain (\>3 months) * Neck pain onset (or acute worsening) in relation to trauma to the head or neck * Neck disability index 20-60% or Numeric Rating Scale neck pain ≥ 3/10 * Impaired sensorimotor function of the neck (at least one of the sensorimotor tests must be impaired, i.e. below the norm values for the test in question). The following cut-off values are used: Joint position sense test: \> 4.5° absolute error in any of the four directions right rotation, left rotation, extension or flexion. Movement sense test: \>28 seconds to complete the zigzag pattern, or \<2,5 norm value (i.e., accuracy in percentage divided by time in seconds). Maximum velocity from the cervical reaction acuity test: \< 100°/s. Range of motion in right rotation, left rotation, extension and flexion (added together): \< 300°. Exclusion Criteria: * Cervical radiculopathy * Neck surgery * Fracture of the neck * Neurological disease * Vestibular disease * Rheumatic disease * Concussion where the person lost consciousness * Uncorrected visual impairment * Epilepsy * Previous experience of severe symptoms (nausea/dizziness) when using VR headsets