Exercise physiology
Cardiac rehabilitation and exercise with heart disease
Reviewed by Reilly Smith, MSc Clinical Exercise Physiology · Last reviewed 15 September 2026
Cardiac rehabilitation is a structured NHS programme of supervised exercise, education and support after a heart attack, stent, bypass or a diagnosis of heart failure. It lowers your risk of another heart attack and of hospital admission, and it can be done at a centre, at home or a mix of both. When it ends, a Clinical Exercise Physiologist or BACPR Level 4 instructor can keep you going.
What happens in cardiac rehab?
The British Association for Cardiovascular Prevention and Rehabilitation (BACPR) sets the UK standards. Its 2023 edition describes five core components: health behaviour change and education; lifestyle risk factor management (physical activity and exercise, healthy eating, stopping tobacco); psychosocial health; medical risk management; and long-term strategies [1].
In practice you get an initial assessment covering your medical history, fitness, mood and risk factors such as blood pressure and cholesterol, then a programme built around you [1]. Exercise sessions are tailored to your ability, with a warm-up, conditioning section and cool-down, alongside education, emotional support and peer support [3]. At the end there is a final assessment, and your GP receives a summary [1].
What qualifies for cardiac rehab?
BACPR says these groups should be offered a programme regardless of age, sex, ethnic group or clinical condition: heart attack or unstable angina, stent or bypass, heart failure, stable angina, defibrillator or resynchronisation devices, valve surgery, heart transplant or ventricular assist device, and adult congenital heart disease [1]. NHS England names the first three as priority groups [10].
NICE says people with heart failure should be offered a personalised, exercise-based cardiac rehabilitation programme unless their condition is unstable [5], and its acute coronary syndromes guideline says everyone who has had a heart attack should be offered cardiac rehabilitation with an exercise component [6].
If you have had one of these events and nobody has mentioned rehab, ask your cardiology team or GP for a referral.
Is cardiac rehab worth it?
Yes. A 2021 Cochrane review of 85 trials with 23,430 people with coronary heart disease found exercise-based cardiac rehab cut the risk of a further heart attack by about 28% (high-certainty evidence) and of hospital admission by about 42% (moderate certainty) over the following year [7]. It did not clearly reduce deaths in that window, and it slightly improved quality of life [7].
For heart failure, a 2024 Cochrane review of 60 trials with 8,728 people found exercise-based rehab likely reduced all-cause hospital admissions by about 31% and improved quality of life, with no clear effect on short-term deaths [8].
Despite this, uptake in England in 2024 was 44.5% of eligible people after acute coronary syndrome and just 16.4% for heart failure, against an NHS England aim of 85% [2, 10]. If you are offered a place, take it.
Exercise after a heart attack, stent or bypass
Cardiac rehab should start early. BACPR standards say you should be contacted within five working days of referral, assessed within ten working days, and started within two weeks of hospital discharge or diagnosis, which has been shown to be safe and to improve uptake [1].
Exercise is not started blind. Your capacity is measured first, by treadmill test where possible or a walking or step test if not, and that result sets your prescription and how closely you are supervised [1]. Your rehab team will guide your return to work, driving and other activities.
Can you exercise with heart failure?
Yes. The NHS says you should be referred for a cardiac rehabilitation assessment to learn how to exercise safely, which may include exercise classes or a personal exercise programme [4]. NICE recommends exercise-based rehab unless your condition is unstable [5].
The landmark HF-ACTION trial randomised 2,331 medically stable outpatients with heart failure and reduced ejection fraction to usual care with or without aerobic exercise training: 36 supervised sessions, then home-based training [9]. Exercise was associated with a modest reduction in death or hospitalisation after adjustment for key prognostic factors, and adverse events were similar between groups [9]. Supervised exercise in stable heart failure is safe.
There is no single "best" exercise for heart failure. Programmes are built around aerobic activity such as walking or cycling, with resistance training encouraged [1]. The amount and intensity should come from your assessment, not a guess.
Can I do cardiac rehab at home?
Yes. BACPR standards say programmes can be delivered centre-based, home-based, web-based, app-based or in a mixed approach, and that patients should be offered a choice [1]. NHS England describes three options: in person at a hospital or community venue; remote (web, phone, app or manual-based); or hybrid [10].
BACPR reports no apparent difference in clinical or quality of life outcomes between centre-based and home-based rehab [1], and the Cochrane heart failure review found the same [8]. One caveat: a face-to-face physical capacity assessment is essential before exercise is prescribed, whatever the setting [1].
How long is cardiac rehab, and what are the phases?
Programme length varies between services, so ask yours. For scale, HF-ACTION used 36 supervised sessions before moving to home training [9].
UK cardiac rehab has traditionally been described in four phases:
- Phase 1 – in hospital, straight after your event or procedure.
- Phase 2 – the early period at home after discharge.
- Phase 3 – the structured, supervised exercise and education programme.
- Phase 4 – long-term maintenance of exercise and lifestyle change in the community.
BACPR's 2023 standards no longer use numbered phases; they describe core components and a "long-term strategies" stage [1]. Services and instructors still use the phase labels, so you will hear both.
Is cardiac rehab free on the NHS?
Cardiac rehabilitation is a standard NHS service. Your hospital team should refer you, and NHS England standards set targets for how quickly you are contacted and assessed [10]. As with other NHS care, there is no charge to you.
What happens after cardiac rehab ends (phase 4)?
This is where many people drift: the supervision stops and the habit fades. BACPR standards say that at completion you should have agreed long-term goals and been signposted to community exercise groups [1].
Phase 4 community cardiac exercise is delivered by instructors holding the Level 4 BACPR Exercise Instructor qualification, which trains exercise professionals to "safely prescribe and deliver an exercise programme for individuals with cardiovascular disease" [11]. Entry requires a Level 3 exercise qualification and at least 150 hours of teaching adults in the last two years; the course is 30 contact hours plus around 70 hours of study [11].
For complex or less stable disease, or testing-led progression, a Clinical Exercise Physiologist is the more specialised option.
Who should you see?
A Clinical Exercise Physiologist (CEP) is the most specialised exercise professional for heart disease. CEPs hold an AHCS-accredited MSc, sit on the Academy for Healthcare Science register (PSA-accredited and voluntary, not statutory) and are trained specifically in exercise testing and in designing, delivering and evaluating exercise for acute, chronic and complex conditions; NHS Health Careers lists cardiology among their services [12]. An honest note: NHS phase 3 programmes are mostly led by nurses and physiotherapists (99% and 64% of programmes in the 2025 audit, with exercise specialists or physiologists in 72%) [2]. CEPs increasingly work within those teams and are the most specialised for exercise testing and prescription in complex cases. See what a Clinical Exercise Physiologist is.
A BACPR Level 4 Exercise Instructor is the right choice if your condition is stable and already assessed and you want supervised exercise at lower cost, often in a leisure centre or community programme [11]. They cannot diagnose or act as a regulated clinician.
A physiotherapist (HCPC-registered, protected title) is the right call for injury, pain or hands-on treatment. The roles overlap and complement each other.
| Clinical Exercise Physiologist | BACPR Level 4 instructor | Physiotherapist | |
|---|---|---|---|
| Training | AHCS-accredited MSc | Level 3 exercise qualification + BACPR Level 4 course | Degree, HCPC statutory registration |
| Register | AHCS (PSA-accredited, voluntary) | Ofqual-regulated Level 4 or CIMSPA-endorsed | HCPC (statutory) |
| Best for | Testing and prescription in complex heart disease | Phase 4 exercise for stable, assessed people | Injury, diagnosis, hands-on treatment |
| Can diagnose? | No | No | Yes, within scope |
Read more about the tiers of exercise professional. If breathing problems are part of the picture, see pulmonary rehab; if you also have diabetes, see exercise with diabetes.
Request a match with a verified clinical exercise physiologist through The Health Nav.
When to be cautious / talk to your doctor first
Do not start or restart exercise on your own if any of these apply:
- Your heart failure is unstable or you have been told to rest [5].
- You have new or worsening chest pain, breathlessness at rest, palpitations, dizziness or fainting.
- Your ankles, legs or abdomen have swollen suddenly, or your weight has jumped in a few days.
- You have not yet had a physical capacity assessment; BACPR says this is essential before exercise is prescribed [1].
- Your medication has recently changed and you have not been reviewed.
Stop exercising and seek help if chest pain, severe breathlessness or light-headedness comes on during a session.
Getting matched with a specialist
NHS cardiac rehab starts with your hospital team or GP. For what comes next, or for private support alongside it, The Health Nav matches you with a verified clinical exercise physiologist. BACPR Level 4 instructors usually run NHS and community cardiac rehab classes, which your hospital team or GP can refer you to. Came through a GP scheme instead? See exercise referral.
Request a match with a verified clinical exercise physiologist through The Health Nav.
This article is general information and does not replace advice from your own healthcare team.
References
- British Association for Cardiovascular Prevention and Rehabilitation. The BACPR Standards and Core Components for Cardiovascular Disease Prevention and Rehabilitation 2023 (4th Edition). https://bacpr.org/s/BACPR-Standards-and-Core-Components-2023.pdf (accessed 15 Sep 2026).
- National Audit of Cardiac Rehabilitation. Quality and Outcomes Report 2025. https://www.cardiacrehabilitation.org.uk/wp-content/uploads/2026/03/NACR-Quality-and-Outcomes-Report-2025-Final.pdf (accessed 15 Sep 2026).
- British Heart Foundation. What is cardiac rehabilitation. https://www.bhf.org.uk/informationsupport/support/practical-support/cardiac-rehabilitation (accessed 15 Sep 2026).
- NHS. Heart failure – Living with. https://www.nhs.uk/conditions/heart-failure/living-with/ (accessed 15 Sep 2026).
- National Institute for Health and Care Excellence. Chronic heart failure in adults: diagnosis and management. NICE guideline NG106. 2018. https://www.nice.org.uk/guidance/ng106 (accessed via NCBI Bookshelf mirror, 15 Sep 2026).
- National Institute for Health and Care Excellence. Acute coronary syndromes. NICE guideline NG185. 2020. https://www.nice.org.uk/guidance/ng185 (accessed 15 Sep 2026; see verification log).
- Dibben G, Faulkner J, Oldridge N, et al. Exercise-based cardiac rehabilitation for coronary heart disease. Cochrane Database Syst Rev. 2021;11:CD001800. https://doi.org/10.1002/14651858.CD001800.pub4
- Molloy C, Long L, Mordi IR, et al. Exercise-based cardiac rehabilitation for adults with heart failure. Cochrane Database Syst Rev. 2024;3:CD003331. https://doi.org/10.1002/14651858.CD003331.pub6
- O'Connor CM, Whellan DJ, Lee KL, et al. Efficacy and safety of exercise training in patients with chronic heart failure: HF-ACTION randomized controlled trial. JAMA. 2009;301(14):1439-1450. https://doi.org/10.1001/jama.2009.454
- NHS England. Commissioning standards for cardiovascular rehabilitation. 16 December 2024. https://www.england.nhs.uk/long-read/commissioning-standards-for-cardiovascular-rehabilitation/ (accessed 15 Sep 2026).
- British Association for Cardiovascular Prevention and Rehabilitation. Specialist Exercise Instructor Training. https://www.bacpr.org/specialist-exercise-instructor-training (accessed 15 Sep 2026).
- NHS Health Careers. Clinical exercise physiologist. https://www.healthcareers.nhs.uk/explore-roles/healthcare-science/roles-healthcare-science/physiological-sciences/clinical-exercise-physiologist (accessed 15 Sep 2026).
Frequently asked questions
What happens in cardiac rehab?
The British Association for Cardiovascular Prevention and Rehabilitation (BACPR) sets the UK standards. Its 2023 edition describes five core components: health behaviour change and education; lifestyle risk factor management (physical activity and exercise, healthy eating, stopping tobacco); psychosocial health; medical risk management; and long-term strategies.
What qualifies for cardiac rehab?
BACPR says these groups should be offered a programme regardless of age, sex, ethnic group or clinical condition: heart attack or unstable angina, stent or bypass, heart failure, stable angina, defibrillator or resynchronisation devices, valve surgery, heart transplant or ventricular assist device, and adult congenital heart disease. NHS England names the first three as priority groups.
Is cardiac rehab worth it?
Yes. A 2021 Cochrane review of 85 trials with 23,430 people with coronary heart disease found exercise-based cardiac rehab cut the risk of a further heart attack by about 28% (high-certainty evidence) and of hospital admission by about 42% (moderate certainty) over the following year. It did not clearly reduce deaths in that window, and it slightly improved quality of life.
Can you exercise with heart failure?
Yes. The NHS says you should be referred for a cardiac rehabilitation assessment to learn how to exercise safely, which may include exercise classes or a personal exercise programme. NICE recommends exercise-based rehab unless your condition is unstable.
Can I do cardiac rehab at home?
Yes. BACPR standards say programmes can be delivered centre-based, home-based, web-based, app-based or in a mixed approach, and that patients should be offered a choice. NHS England describes three options: in person at a hospital or community venue; remote (web, phone, app or manual-based); or hybrid.
How long is cardiac rehab, and what are the phases?
Programme length varies between services, so ask yours. For scale, HF-ACTION used 36 supervised sessions before moving to home training.
Is cardiac rehab free on the NHS?
Cardiac rehabilitation is a standard NHS service. Your hospital team should refer you, and NHS England standards set targets for how quickly you are contacted and assessed. As with other NHS care, there is no charge to you.
What happens after cardiac rehab ends (phase 4)?
This is where many people drift: the supervision stops and the habit fades. BACPR standards say that at completion you should have agreed long-term goals and been signposted to community exercise groups.
Ready to put this into practice?
Request a match with a verified clinical exercise physiologist through The Health Nav