Procedures
RECRUITMENT
Families interested in participating in the Movementss study are informed by telephone and information letters (sent via e-mail). If the eligibility criteria are met, parents and children are invited for an intake consult (via e-health or at the psychiatry clinic), explaining further details of participating in the study. Both parents fill out written informed consent for the Movementss study (Additional file 1).Assessments will take place at baseline (T0), after twelve weeks of treatment (T1), after six months from baseline (T2), and twelve months from baseline (T3) (i.e., lifestyle intervention with CAU). T0 will be scheduled three weeks before the start of the treatment. T0 and T1 will take place at Karakter Child and Youth Psychiatry. For the T2 and T3 assessments, parents are asked to fill out questionnaires online. Figure Recruitment and procedure of the study