Exercises After Heart Surgery: What Is Safe?

After heart surgery, many patients are told to stay active. But this often leads to another question: How much activity is actually safe? 

Should you walk every day? Can you climb stairs? When can you start strengthening exercises? What movements should you avoid after open-heart surgery? 

The answer depends on the type of procedure, your overall health and how well you are recovering. Exercises after bypass surgery, valve surgery or other cardiac procedures should not follow a one-size-fits-all plan. 

In general, recovery starts with simple movements and gradually progresses to more structured exercise. Your surgeon, cardiologist or cardiac rehabilitation team should guide the timing and intensity of activity. Cardiac rehabilitation is designed to provide personalised, supervised exercise and education after heart surgery. 

Important: Do not use this article as a personal exercise prescription. Always follow the activity restrictions and exercise plan provided by your treating cardiac team. 

The Safest Approach: Start Slowly and Progress Gradually 

After heart surgery, the body needs time to heal. 

Your recovery may be affected by: 

• The type of heart surgery performed 

• Whether the chest bone was opened 

• Your age and physical condition before surgery 

• How long you spent in the hospital or ICU 

• Other health conditions, such as diabetes or kidney disease 

• Any complications during recovery 

For many patients, early movement and walking begin while they are still in the hospital, followed by a gradual increase in activity after discharge. The pace should be based on individual recovery rather than comparing yourself with another patient. 

1. Walking: Usually One of the First Exercises

Walking is often one of the first activities introduced after heart surgery. 

It can help patients gradually rebuild endurance and confidence. Initially, this may mean short walks with support. Over time, the duration and distance can be increased if your healthcare team advises it. 

A simple approach is: 

• Start with the amount recommended by your care team. 

• Walk at a comfortable pace. 

• Increase activity gradually. 

• Avoid trying to “catch up” by suddenly walking much farther. 

• Rest if you are unusually tired. 

The right walking target is different for every patient. Someone recovering after an uncomplicated procedure may progress faster than an older patient recovering after bypass surgery and a prolonged hospital stay. 

2. Breathing Exercises

Breathing exercises are commonly introduced during early recovery after heart surgery. 

They can help patients practise deeper breathing and support lung recovery after a period of reduced activity. Your hospital team may provide a specific breathing routine or device to use during recovery. 

Follow the technique and frequency recommended by your healthcare team rather than copying exercises from online videos. 

3. Gentle Mobility Exercises

During the early stages of recovery, patients may perform gentle movements to prevent stiffness and gradually improve mobility. 

Depending on medical advice, these may include: 

• Gentle ankle movements 

• Controlled leg movements 

• Shoulder and arm movements 

• Sitting-to-standing practice 

• Gentle stretching 

These exercises should be comfortable and should not cause significant pain or strain. 

If you had open-heart surgery, movement restrictions may apply while the chest bone heals. Your care team can explain which upper-body movements are appropriate for your specific surgery. 

4. Stair Climbing

Many patients are concerned about climbing stairs after heart surgery. 

Stairs are not automatically unsafe, but the timing depends on your strength, balance, symptoms and medical advice. 

Do not assume that reaching a particular week after surgery means you are automatically ready. Your treating team should advise when it is appropriate. 

When you do begin, move slowly, use support if advised and avoid rushing. 

5. Light Strengthening Exercises

Strength training may eventually become part of cardiac rehabilitation because muscle strength is important for balance, mobility and everyday activities. 

However, patients should not begin lifting weights independently immediately after surgery. 

If you have had open-heart surgery, restrictions on lifting, pushing and pulling may apply while the chest bone heals. The American Heart Association notes that patients may need to avoid pushing, pulling, twisting or lifting more than five pounds for up to six weeks after surgery, although your own care team may provide different instructions based on your procedure and recovery. 

When it is appropriate to begin strengthening, cardiac rehabilitation may introduce activities gradually using light resistance or other exercises suited to the patient’s condition. 

6. Stretching and Flexibility Exercises

Gentle stretching may help improve flexibility and reduce stiffness. 

However, stretching should be controlled. Avoid forcing the body into painful positions, especially during the early stages of recovery. 

A good cardiac rehabilitation programme can include flexibility exercises along with aerobic and strengthening activities, with the overall programme tailored to the patient’s condition. 

How Do You Know If the Exercise Intensity Is Appropriate? 

Your healthcare team may give you specific guidance on how to monitor exercise intensity. 

One commonly used practical check is whether you can still carry on a conversation while exercising. However, this does not replace individual medical advice. 

A safe exercise session should generally include: 

Warm-up 

Begin slowly to allow your heart rate and breathing to increase gradually. 

Main Activity 

Complete the walking or other prescribed activity at the intensity recommended for you. 

Cool-down 

Slow down gradually rather than stopping suddenly. 

The American Heart Association recommends gradual warm-up and cool-down periods around aerobic or strengthening activity. 

Exercises That May Need to Wait 

Depending on your surgery and recovery, you may need to delay activities such as: 

• Heavy lifting 

• Strenuous gym workouts 

• High-intensity exercise 

• Push-ups or other exercises that place significant stress on the chest 

• Heavy pushing or pulling 

• Contact sports 

The timing varies significantly. Do not restart these activities based only on a general timeline from the internet. 

Ask your surgeon or cardiologist when these activities are safe for you. 

Warning Signs: When to Stop Exercising 

Stop exercising and seek medical advice if you experience concerning symptoms such as: 

• Chest pressure, tightness or pain 

• Severe or unusual breathlessness 

• Dizziness or feeling faint 

• A fast or irregular heartbeat accompanied by symptoms 

• Extreme or unusual fatigue 

If symptoms are sudden or severe, seek urgent medical care rather than waiting for your next rehabilitation session. The American Heart Association also advises stopping activity and contacting a healthcare professional if warning signs such as angina, significant dizziness, unusual shortness of breath or a fast or uneven heartbeat occur. 

Why Supervised Cardiac Rehabilitation Can Help 

Many patients know that they should exercise after heart surgery but are unsure how to progress safely. 

Cardiac rehabilitation can provide: 

• An assessment of physical ability and limitations 

• A personalised exercise plan 

• Supervised walking and endurance training 

• Gradual strengthening exercises when appropriate 

• Physiotherapy support 

• Monitoring of the patient’s response to activity 

• Education for continuing exercise at home 

Structured cardiac rehabilitation is medically supervised and can include aerobic exercise, strength training, physical activity counselling and other aspects of cardiovascular recovery. 

Exercises After Heart Surgery: A Simple Recovery Framework 

This is a general framework, not a fixed timeline. Some patients will progress faster, while others may require more time or supervised rehabilitation.