Therapeutic Exercise Through Exergames on Mobile Devices for Cervical Rehabilitation

Inclusion Criteria: * Persons of legal age with cervicalgia. * Have a smart mobile device (smartphone or tablet) on which to download the App. Exclusion Criteria: * Acute musculoskeletal pathological processes or exacerbation (less than 15 days of evolution). Includes presentation of symptoms such as paraesthesia, radiating pain, loss of strength in the upper limb. * Episodes of severe pain more than 15 days of evolution. * Accident with cervical or dorsal injury within the last month. * Refusing to sign the informed consent. * Not having a device suitable for installation or lack of experience in the use of smart mobile devices. * Baseline NDI score of less than 5. * Presence of red flags: * Suspicion of fracture: advanced age, previous trauma, osteoporosis. * Suspicion of neurological involvement: loss of sensation in extremities, loss of strength or muscle mass. * Suspicion of infection: fever, night sweats. * Suspicion of cancer: Previous history of cancer, no improvement in one month of treatment, weight loss, headache, vomiting. * Suspicion of systemic disease: headache, fever, malaise, general headache, fever, malaise, unilateral skin rash (herpes).