Acknowledgements
We sincerely thank all participants of the SIT LESS randomised clinical trial. Furthermore, we are indebted to Karin Verhoeven, Linda Schepers, Myriam Zootjes, Marieke Damen, Maria Brussen, Jorie van Capelleveen, Monique Hoogeveen and Barbara Neervoort (nurse specialists cardiac rehabilitation) for their efforts in offering SIT LESS and contribution to the data collection. Additionally, we gratefully acknowledge the support from Bregje Raap, Esther de Bruijn, Ellen Happel, Monique Gelms and Bianca Baten to conduct this trial in Bernhoven Hospital and Rijnstate Hospital. We also thank Thomas Smit (Appbakkers B.V., Zwolle, The Netherlands), Coen Lauwerijssen and Michel Sperling (2 M Engineering, Valkenswaard, The Netherlands) for technical support regarding the RISE application, web-based dashboard and Activ8 sit activity tracker.