This trial is a single-center clinical trial in Taiwan with an expected enrollment of 60 people in Taiwan. The purpose of this trial is to compare the performance of middle-aged and elderly patients with subacute heart failure with that of a healthy control group in terms of balance function and executive function, as well as to investigate whether there is a correlation between balance function and executive function in middle-aged and elderly patients with heart failure and to track the changes in balance and executive function one month and three months after discharge from the hospital. Please think carefully before deciding whether to participate in this trial.

Inclusion Criteria:

• Diagnosed with heart failure and receiving post-acute care program for heart failure
• Left ventricular ejection fraction≦40%
• Age ≥ 45
• No cognitive impairment
• Ambulate independently or with the use of aids
• Clinical symptoms are stable
• Voluntary participation

Exclusion Criteria:

• Use of medications that cause dizziness or interfere with balance
• Have other diagnoses that may affect balance, such as stroke, Parkinson's disease
• Color blindness, severe hearing or visual impairment that prevents reading questions and listening to instructions

1. Middle-aged and older patients with heart failure in in Post-Acute Care Program