All willing patients who are offered cardiac rehabilitation will comprise the control group. Patients in the control group will have access to standard care at the cardiac outpatient clinic program comprising standard center-based cardiac rehabilitation. The cardiac outpatient clinic registers activities and monitors patient participation in cardiac rehabilitation. Data on patient demographic, diagnoses, educational backgrounds, civil status, and patient-reported outcomes will be collected from self-reported questionnaires at baseline, and 3 months after.

The family members attendig the patients cardiac rehabilitation will recive a questionnaire on support fra the outpatient clinic nurses 3 months after the first consultation.

Patients in the intervention group will, in addition to standard care, be offered an individually tailored family-focused cardiac telerehabilitation (video consultations and home monitoring) developed through a co-creative process.

The cardiac outpatient clinic registers activities and monitors patient participation in cardiac rehabilitation. Data on patient demographic, diagnoses, educational backgrounds, civil status, and patient-reported outcomes will be collected from self-reported questionnaires at baseline, and 3 months after the intervention.

The family members attendig the patients cardiac rehabilitation will recive a questionnaire on support fra the outpatient clinic nurses 3 months after the first consultation.

Patients with cardiac disease and earlier experiences with cardiac rehabilitation, family members, and nurses in the Departments of Cardiology at Amager and Hvidovre Hospital will be invited to work in a partnership and through a course of innovative co-creative workshops. It is recommended that usability studies have 5-15 participants, which is why we plan to enroll 3 cardiac patients, 3 relatives and 3 nurses from the outpatient clinic. Through the workshops, a rehabilitation program offering cardiac telerehabilitation will be co-created to comply with the preferences and perspectives of patients and family members and nurses from the outpatient clinic. Through these workshops we will learn which important components and elements should be prioritized when offering cardiac telerehabilitation (how, when, and why?).

Health literacy is investigated through instruments such as the Health Literacy Questionnaire (HQL).

The HLQ contains 44 qustions that cover nine conceptually distinct areas of Health Literacy. Response options for each scale are determined by the content and nature of the items. For scale 1-5 four point ordinal response options are used (strongly disagree, disagree, agree and strongly agree), while for scales 6-9 five-point ordinal response options are used (cannot do, very difficult, quite difficult, quite easy and very easy).

HLQ scale scores are calculated as unit-weighted sums of the constituents items averaged by the number of items in the scale such that the nominal range of the scale scores are 1-4 for scale 1-5 and 1-5 for scale 6-9. A low score means worse outcome and a high score means better outcome.

The European Quality of life (EQ-5D-5L) questionnaire is a well-known generic and validated instrument for measuring health related quality of life, and it is used in a population health surveys, clinical trials and health economics evaluations.

The EQ-5D-5L have five response levels in each dimensions (none, slight, modrate, severe and extreme problems). The EQ-5D-5L health ranges from 11111 corresponding full health to 55555 corresponding the worse health state. The The EQ-5D also include a EQ VAS 0-100 where the 0 is labelled the worst health state and 100 is labelled the best health state.