The aim of this cross-sectional observational study is (1) to assess the health status of a group of heart transplant patients and their level of physical activity, (2) and to compare the health status of a group of heart transplant patients with different levels of physical activity, with a group of healthy people classified as sedentary (due to their level of physical activity).

Inclusion Criteria:

• Heart transplant adults (18 years old) whose transplant had taken place at least twelve months before the study data was taken.
• Heart transplant patients with low, moderate and high levels of physical activity, according to the results of the International Physical Activity Questionnaire - Long Form (IPAQ-L).
• Healthy people with low levels of physical activity, according to the results of the International Physical Activity Questionnaire - Long Form (IPAQ-L).

Exclusion Criteria:

• Do not meet the eligibility criteria.
• Have physical disabilities and/or other limiting pathologies that would condition their level of physical activity.
• Have participated in cardiac rehabilitation programs during the twelve months prior to the study.

Active and sedentary heart transplant patients and sedentary healthy people.