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In NPTE exam contexts, patients with chronic heart failure require interventions that carefully balance activity and safety. Low-intensity aerobic training with frequent rest breaks is the gold standard starting point because it improves cardiovascular efficiency while minimizing risk. High-intensity interval training (A) is contraindicated in unstable or deconditioned patients. Resistance training at high loads (D) or even moderate loads may increase cardiac demand excessively. Supine exercises (B) do not sufficiently address aerobic capacity or endurance goals.

Evidence-based guidelines emphasize the importance of early mobilization and low-intensity aerobic activity, progressively advancing as tolerance improves. The therapist should closely monitor vitals (heart rate, blood pressure, oxygen saturation) and watch for signs of exercise intolerance (e.g., angina, undue dyspnea). This intervention also improves functional independence for activities of daily living.