Activity Guidelines for Cardiac Clients

Benefits of Physical Activity in Heart Failure

Multiple large trials have demonstrated that regular aerobic exercise in stable heart failure improves: maximal oxygen uptake (VO2 max), 6-minute walk distance, quality of life, and — in landmark trials — reduces the risk of death or hospitalization. Exercise counteracts the deconditioning spiral in which HF symptoms lead to reduced activity, which worsens functional capacity and HF symptoms further.

Exercise is contraindicated in: acute decompensated heart failure, recent myocardial infarction (within 48–72 hours), severe aortic stenosis, uncontrolled arrhythmia, and any acute illness. Obtain physician clearance for exercise prescription, especially post-hospitalization.

Safe Exercise Parameters

Type and Frequency

Low-impact aerobic activity is the foundation: walking, stationary cycling, water aerobics. Begin with 3–5 sessions per week of 5–10 minutes. Progress to 30 minutes most days as tolerated over weeks. Resistance training at low intensity can be added once aerobic tolerance is established.

Intensity Monitoring

Two methods: heart rate target (typically 50–70% of maximum HR for cardiac clients) and Borg Rating of Perceived Exertion (RPE). The Borg scale runs 6–20; target RPE 11–14 (fairly light to somewhat hard). The "talk test" — the client can speak in short sentences without gasping — is a simple, accessible intensity check. For clients on beta-blockers, heart rate targets may be unreliable because beta-blockers blunt the heart rate response to exercise.

Progression Principle

Increase one variable at a time — duration first, then frequency, then intensity. Do not increase total volume by more than 10% per week. If a client misses several days due to illness, restart at a lower level and progress again.

Stop Exercise Immediately If:

Chest pain or pressure, severe shortness of breath not proportional to effort, dizziness or near-syncope, sustained palpitations or irregular heartbeat, unusual fatigue significantly worse than expected, excessive pallor or cyanosis, or oxygen saturation drop below 88% (or significantly below baseline). Stop activity, have the client rest, assess, and notify the clinician. Call 911 for chest pain or severe dyspnea.