For the reasons mentioned above, it is important to further implement Coach2Move and study its effect, costs, and feasibility in current practice. A stepped wedge cluster randomised trial design is chosen because in the opinion of the researchers, the implementation strategy will do more good than harm (making a parallel design, in which certain practices do not receive the intervention or to withdraw the intervention as would occur in a cross-over design, is unethical) and it furthermore minimizes contamination.