A Technology-based Intervention for Promoting Physical Activity Among Post-treatment Cancer Survivors

Cancer survivors generally have low physical activity (PA) levels. While literature shows some evidence of improvement in PA following technology-based PA promotion interventions among cancer survivors, high-quality randomised control trials (RCTs), with objective measures of PA and longer-term follow-up, are lacking. Using a theoretical framework that addresses action control in addition to intention formation may enhance intervention effect. The Multi-process action control (M-PAC) framework is an extension of the traditional intention-formation theories, incorporating constructs that address the translation of intention into behaviour and continual action control. After comprehensively searching, no previous or ongoing RCTs have investigated the efficacy of a technology-based PA promotion intervention in cancer survivors that is designed based on the M-PAC framework. Investigators therefore propose a RCT to evaluate a technology-based intervention (WExercise) to support the promotion of PA in cancer survivors.

Inclusion Criteria:≥18 years of agecompletion of primary treatment (surgery/chemo-/radiation therapy) of curative intent for at least 12 months,no metastasis, no recurrencenot meeting the recommended PA guideline (<150 min of moderate intensity aerobic exercise and <75 min of vigorous aerobic exercise per week)access to Internetable to read Chinese and communicate in Cantonese or Putonghuascreened by a nurse as no contraindications for engaging in unsupervised exercise using a risk screening toolExclusion Criteria:have a psychiatric disordersignificant cognitive impairmenta history of more than one cancer