The core determinants of social cognitive theory that provide a foundation for behaviour change include knowledge, self-efficacy, outcome expectations, goal setting, perceived environmental or personal facilitators, as well as social and structural barriers. To ensure that the behaviour change techniques outlined by social cognitive theory are incorporated into the intervention, the behaviour change taxonomy outlined by Michie et al was consulted and translated into an activity behaviour change model for adults with MS (table 1). The components are integrated in the educational materials and weekly coaching sessions with participants throughout the 15-week programme. Table 1 provides information about the incorporation of SCT variables in the intervention (ie, programme manual, newsletters and coaching sessions).