Cardiovascular disease guidelines - intensity

• A. Progress up to 20-45 minutes
• B. Progress up to 60-90 minutes
• C. Progress up to 5-15 minutes
• D. Progress up to 45-60 minutes

Answer: (A)

Safe progression of aerobic duration for individuals with cardiovascular disease focuses on gradually increasing time spent exercising to build endurance while staying within safe limits. Starting around 20 minutes and moving toward about 40–45 minutes per session fits the typical early-to-mid stage progression, giving enough time for meaningful cardio work, warm-up, and cool-down without overloading the heart as tolerance develops. Pushing too long too soon—toward 60–90 minutes—can raise risk, and starting with only 5–15 minutes may not provide sufficient stimulus for cardiovascular adaptations. Extending to 45–60 minutes is reasonable later in rehab, but the 20–45 minute range is the balanced progression most aligned with initial CV disease guidelines. Pair the duration with moderate intensity and symptom monitoring to keep safety and progress in sync.