Our objective is to prospectively validate the wearable biometrics clothing Hexoskin™ against established standards used to assess chronic stable angina. In addition, the investigators want to derive a novel vitality index from the data generated by this device that will subsequently be used to propose a new angina classification system that will account for ischemic threshold adaptation. Moreover, the investigators want to evaluate the safety and efficacy of Hexoskin monitor patients undergoing home-based cardiac rehabilitation.