Background:Globally, neck pain is the fourth most common condition associated with longer periods of living withdisability. Annually, approximately 0.3% of the population of Western countries undergo whiplash trauma, and half ofthose individuals will develop chronic problems with highcosts for the individual and society. Evidence for chronicwhiplash-associated disorders (WAD) treatment is scarce, though neck-specific training at a physiotherapy clinic twice aweek for 12 weeks has demonstrated good results. More efficient, flexible rehabilitation with reduced waiting times andlower costs is needed, ideally replacing lengthy on-site treatment series by healthcare providers. Internet-based care hasbeen shown to be a viable alternative for a variety of diseases and interventions, but studies are lacking on Internet-basedinterventions for individuals with chronic neck problems. The aim of the trial described here is to compare the effects ofan Internet-based neck-specific exerciseprogrammetothesameexercisesperformed at a physiotherapy clinic in regardsto self-reported and clinical measures, as well as cost-effectiveness.

Methods:This prospective, randomized controlled trial will involve 140 participants. Measurements will be made atbaseline, 3 months (end of treatment), and 15 months (12 months after end of intervention) and will include ratings ofpain, disability, satisfaction with care, work ability, quality of life, and cost-effectiveness.

Discussion:The study results may contribute to the development of a more effective rehabilitation, flexible and equalcare, shorter waiting times, increased availability, and lower costs for healthcare and society.

Trial registration:ClinicalTrials.gov Protocol ID: NCT03022812, initial release 12/20/2016.