This paper from the European Journal of Preventive Cardiology may be of interest. It provides an update on the core components of cardiac rehab as outlined in the European Association of Preventive Cardiology 2010 statement.
Read it here: Ambrosetti M, Abreu A, Corrà U, Davos CH, Hansen D, Frederix I, Iliou MC, Pedretti RF, Schmid JP, Vigorito C, Voller H. Secondary prevention through comprehensive cardiovascular rehabilitation: From knowledge to implementation. 2020 update. A position paper from the Secondary Prevention and Rehabilitation Section of the European Association of Preventive Cardiology. European Journal of Preventive Cardiology. 2020 Mar 30:2047487320913379.