Heart Conditions & Exercise
Living with a heart condition doesn't mean stepping back from physical activity — in many cases, the right exercise is one of the most powerful tools available. Whether someone is managing coronary artery disease, heart failure, arrhythmia, or recovering post-MI or post-stent, an accredited exercise physiologist can help design a safe, progressive, and evidence-based program tailored to their cardiac health.
At Fortify Movement & Health, the team works alongside cardiologists and GPs to support cardiac patients at every stage — from early recovery through to long-term maintenance and quality-of-life improvement.
How Exercise Helps
Decades of clinical research confirm that structured exercise is a cornerstone of cardiac rehabilitation and long-term heart health. Here's what's happening at a physiological level.
Cardiac Remodeling
Regular aerobic exercise promotes beneficial structural changes in the heart — improving left ventricular function, reducing cardiac workload, and supporting healthy myocardial adaptation. Over time, this means the heart pumps more efficiently at rest and during activity.
Endothelial Function
Exercise improves the health and responsiveness of blood vessel linings. Better endothelial function means improved vasodilation, reduced arterial stiffness, and lower risk of plaque formation — all directly relevant for people with coronary artery disease.
Autonomic Balance
Physical training recalibrates the autonomic nervous system — reducing sympathetic overdrive and increasing parasympathetic tone. This translates to lower resting heart rate, improved heart rate variability, and reduced arrhythmia burden in many patients.
Quality of Life
Exercise rehabilitation consistently improves energy levels, reduces fatigue, and supports mental wellbeing in cardiac patients. It builds confidence in the body's capacity to move again — a key milestone for those recovering from a cardiac event.
What to Aim For
Exercise intensity and volume should be individualised — but these cardiac rehab benchmarks offer a practical starting framework. All prescriptions at Fortify are informed by current ESSA and AHA guidelines.
| Zone | RPE | Heart Rate | Clinical Notes | Examples |
|---|---|---|---|---|
| Low Intensity | RPE 10–12 | 40–55% HRmax | Warm-up, cool-down, and early post-event recovery sessions. Suitable for patients with significant deconditioning or during the first weeks post-MI/stent. | Gentle walking, seated cycling, water movement |
| Moderate Intensity | RPE 12–14 | 55–70% HRmax | The primary training zone for most cardiac rehab programs. Evidence strongly supports moderate continuous training for improving VO₂max, functional capacity, and HbA1c in heart failure and CAD. | Brisk walking, stationary bike, light resistance |
| Moderate–High | RPE 14–16 | 70–80% HRmax | Appropriate for stable, well-conditioned cardiac patients with clinician clearance. HIIT at this level shows cardiovascular benefit with careful monitoring. | Interval walking, supervised HIIT, circuit training |
40–55% HRmax
Warm-up, cool-down, and early post-event recovery sessions. Suitable for patients with significant deconditioning or during the first weeks post-MI/stent.
Gentle walking, seated cycling, water movement
55–70% HRmax
The primary training zone for most cardiac rehab programs. Evidence strongly supports moderate continuous training for improving VO₂max, functional capacity, and HbA1c in heart failure and CAD.
Brisk walking, stationary bike, light resistance
70–80% HRmax
Appropriate for stable, well-conditioned cardiac patients with clinician clearance. HIIT at this level shows cardiovascular benefit with careful monitoring.
Interval walking, supervised HIIT, circuit training
Progression Milestones
Activity pacing note: Cardiac patients are encouraged to use the "talk test" — if it's too hard to hold a brief conversation, intensity is likely too high. Perceived exertion (RPE) is often preferred over heart rate targets in patients on beta-blockers, where HR response may be blunted.
Staying Safe
Safety is the foundation of every cardiac exercise program at Fortify Movement & Health. Accredited exercise physiologists are trained to manage clinical risk, respond to adverse events, and adjust programming based on real-time cardiac monitoring.
Pre-Exercise Cardiac Assessment
- Medical clearance from cardiologist or GP before commencing exercise
- Review of recent ECG, echo, stress test results where available
- Resting BP and HR recorded at each session
- Medication review — particularly beta-blockers, anti-arrhythmics, anticoagulants
Symptom Recognition
- Stop exercise immediately if chest pain, pressure, or tightness occurs
- Dizziness, nausea, or near-syncope — cease activity and rest
- Unusual shortness of breath beyond expected exertion level
- Palpitations, skipped beats, or irregular heart rhythm during session
Pacemaker & ICD Considerations
- Share device details and programmed rate limits with your exercise physiologist
- Avoid exercises that require extended arm elevation above device site in early weeks
- Heart rate targets must be set below the ICD therapy threshold
- Exercise is still safe and encouraged — device parameters simply inform prescription
Emergency Protocols
- AED on site and staff trained in CPR/AED use
- All clinical sessions follow ESSA emergency response guidelines
- Written emergency action plan in place for each cardiac participant
- If symptoms are severe or don't resolve — call 000 immediately
Download the Heart Conditions Guide
Get the full clinical reference guide as a PDF — including exercise zones, safety protocols, and progression milestones. Great to share with your GP or cardiologist.
Ready to Get Started?
The team at Fortify Movement & Health is here to help design a safe, effective cardiac exercise program tailored to individual needs and goals.
Sources & Further Reading
- Exercise is Medicine Australia (EIMA) — clinical guidelines for exercise in chronic disease and cardiac conditions.
- Exercise Right — Exercise & Sports Science Australia (ESSA) — accredited evidence-based resources for exercise with heart conditions.
- All programs and clinical protocols at Fortify Movement & Health follow current ESSA, AHA, and Heart Foundation guidelines. Content is general in nature and does not replace individual medical advice.