Final answer:
The implementation of the nurse-patient interaction in the cardiac rehabilitation program for a middle-aged patient who has experienced a myocardial infarction is an example of the activity theory in nursing.
Step-by-step explanation:
The implementation of the nurse-patient interaction in the cardiac rehabilitation program for a middle-aged patient who has experienced a myocardial infarction can be related to the activity theory in nursing. According to the activity theory, older adults can maintain a sense of well-being and happiness by engaging in meaningful activities and social interactions. The nurse in the cardiac rehabilitation program encourages the patient to participate in exercise and other activities to improve their overall health and quality of life.
Examples of this theory can be seen in the older woman who joins the YWCA to swim, serves on the Friends of the Library board, and participates in neighborhood group activities. This active engagement in various activities helps promote a healthy and fulfilling lifestyle.