What symptoms should make me stop exercising?
Stop exercising and seek advice if you experience chest pain or tightness, dizziness or light-headedness, unusual shortness of breath out of proportion to the effort, palpitations or a noticeably irregular heartbeat, or a shock from your ICD.
These symptoms do not necessarily mean something is wrong, but they should be assessed before you continue exercising. Contact your GP, cardiac rehab team or device clinic and describe what happened, including what you were doing at the time. If you receive an ICD shock, contact your device clinic or cardiology team the same day. If symptoms are severe or do not settle with rest, call 999.
Once you have been checked, most people are able to return to activity with adjusted guidance rather than stopping altogether.
Category: RecoveryCan I get cardiac rehab if my arrest was not caused by a heart attack?
Yes, you can ask for it, and you should. In practice, cardiac rehabilitation in the UK is most consistently offered to people recovering from a heart attack. If your cardiac arrest was caused by an arrhythmia, an inherited condition, or had no identified cause, you may not be referred automatically.
You are entitled to ask for a referral regardless of the cause of your arrest. Speak to your cardiologist, cardiac nurse or GP, and be persistent. The supervised exercise, education and psychological support that rehab provides are valuable for all cardiac arrest survivors, and some areas run programmes that accept a wider range of patients.
If you are turned down, ask why, and ask what alternatives are available locally. Our community includes many survivors who only got a rehab place because they pushed for one.
Category: RecoveryWill exercise set off my ICD?
No, not in normal circumstances. Your ICD is programmed to deliver therapy only above a specific heart rate threshold, set well beyond what ordinary vigorous exercise produces. Raising your heart rate through exercise will not trigger an inappropriate shock.
Your device clinic takes your activity levels into account when programming the device, so tell them if you are returning to running, cycling or other demanding exercise. If you are ever shocked during or after exercise, stop, rest, and contact your device clinic or cardiology team the same day so they can review what the device recorded.
Most people with ICDs exercise regularly and without issue. The bigger barrier is usually confidence rather than the device itself, and that improves with gradual, consistent activity.
Category: Implantable DevicesWhen can I start exercising after a cardiac arrest?
For most people, light activity such as short walks and gentle stretching is encouraged within days of leaving hospital. More structured exercise usually begins after a cardiac rehabilitation assessment, typically four to six weeks after the event. A return to sport needs explicit clearance from your cardiologist, and the timescale varies by activity.
If you have an ICD, avoid overhead arm movements and strenuous upper body exercise for the first four to six weeks after implantation, so the leads can settle. Your device clinic will advise you specifically.
Do not wait until you feel completely well before starting to move. Prolonged rest does not help cardiac recovery, and gradual activity rebuilds both fitness and confidence. Our guide to exercise after cardiac arrest covers this in more detail.
Category: Recovery