Implementation of physical activity in the health care setting P. 4 Barriers to implementation of physical activity in the hospital setting P. 8 Assessment of physical activity in the health care setting P. 13 The screening of physical activity in health care P. 15 Ethical aspects of recommending physical activity to patients P. 18 Health economic aspects on physical activity interventions in community and primary care P. 22 The sedentary patient P. 25 Physical activity for children in health care P. 27 The organisation of promoting physical activity in health care -examples from the Nordic countries P. 31 The Swedish approach on physical activity on prescription P. 34 The role of relative intensity P. 37 How are evidence-based recommendations for disease prevention implemented?P. 41 Uniform global recommendations on physical activity for healthThe collection of articles in this supplement is aimed at health care personell, administrators and policymakers, who work in the field of implementation of physical activity (PA) in health care settings, including hospitals.The focus is on facilitators and barriers, from experts in the field, sharing their experience and giving good examples, with the aim of improving the implementation of physical activity in this context.