It depends on what kind of boxing you mean.
Fitness boxing (bag work, pad work, shadowboxing) is generally considered acceptable for most people with ICDs, provided your cardiologist has cleared you and you’re past your initial recovery period. It’s an effective cardiovascular workout and vigorous exercise alone won’t trigger your device inappropriately.
Contact boxing (sparring or competitive bouts) is a different matter. The primary concern is direct impact to your ICD site, typically the upper left chest. A hard blow to that area could potentially dislodge a lead or damage the device housing. There’s also a broader consideration with contact sports: repeated physical trauma raises your overall risk profile, particularly if your underlying condition involves arrhythmia.
Most cardiologists will advise against competitive or contact boxing. If boxing is important to you, it’s worth having a frank conversation with your cardiology team about the specific type, your underlying condition, and what a safe approach might look like.
If you do train in a boxing gym, specialist protective vests that shield the ICD site are available and worth considering.
For guidance on exercise and returning to physical activity, visit our Exercise After Cardiac Arrest page.
Always discuss contact sports with your cardiologist before taking part.