This will be a two-phase study. Phase A will take a qualitative approach collect patient and staff feedback about the current rehabilitation programme, before using this information to develop and pilot the intervention. Phase B will then assess the feasibility of the intervention within cardiac and pulmonary rehabilitation. Participants agreeing to take part in the phase B will be required to complete an interview and questionnaire at three time points. Patients' personal opinions of the programmes will be extremely important in discovering what can be done to improve rehabilitation for future participants.