To ensure the dosage of intervention delivered in terms of the amount, frequency, duration, and breadth would be adequate to assess physical activity levels, physical activity self-efficacy, cancer-related fatigue, depression, muscle strength, and quality of life, a research committee is crucial to assess the dosage of the intervention and to train the volunteer nursing students as coaches for the intervention. In particular, the safety and appropriateness of the intervention content were reviewed carefully by the committee before commencement. The members in the committee consist of an associate professor, an assistant professor and a research student from a local university who are equipped with extensive experience in conducting different research and particularly, psychosocial interventions for children with cancer. The committee also includes a professor in paediatric oncology and a specialist nurse with substantial experience in delivering care to children undergoing cancer treatment, and an assistant professor who is an expert specialising in sports and recreation management.