Exercise is usually safe and helpful in chronic kidney disease. How much, what type, dialysis precautions and what to clear with your nephrologist first.
For most people with chronic kidney disease (CKD), exercise is safe and helpful when it is cleared by your doctor or renal team and built up slowly. Guidelines suggest aiming for around 150 minutes of moderate activity a week, or as much as your heart and general health allow, plus light strength training. Exercise does not cure CKD, but it supports blood pressure, blood sugar, muscle and mood.
Why this matters in Malaysia
A national survey found that about 15.5% of Malaysian adults had CKD in 2018, up from about 9% in 2011, with most cases in the early stages. High blood pressure and diabetes were strongly associated with CKD. Because these conditions drive kidney damage, anything that helps control them also helps protect the kidneys. See exercise for high blood pressure and exercise for type 2 diabetes.
What the evidence says
- Guidelines. The KDIGO 2024 guideline recommends that people with CKD be advised to do moderate-intensity physical activity for at least 150 minutes a week, or to a level compatible with their cardiovascular and physical tolerance, avoid sedentary behaviour, and take account of age, frailty and other conditions.
- Trials. A systematic review and meta-analysis of exercise training in adults with CKD found improvements in fitness, walking capacity, cardiovascular measures, muscle function and health-related quality of life. Effects on kidney filtration itself are less certain.
- Dedicated guideline. A clinical practice guideline on exercise and lifestyle in CKD (UK Kidney Association) covers non-dialysis CKD, dialysis and transplant, and encourages people to be active and to avoid inactivity.
CKD also accelerates muscle loss and weakness, so strength training directly counters that. Our guide to sarcopenia explains why this matters.
Get clearance first
Kidney disease ranges from mild early stages to dialysis. Before you begin, ask your doctor or nephrologist:
- Is it safe for me to exercise at my stage and with my other conditions?
- Are there limits on intensity, or on blood pressure or heart rate?
- Does my fluid or potassium advice change on exercise days?
- If I am on dialysis, which days and times are best, and how do I protect my access arm?
- Do any of my medicines affect exercise?
If you also have heart disease, which is common, see exercise and heart disease as well.
A sensible starting programme
| Component | Starting point | How to progress |
|---|---|---|
| Aerobic | 10 minutes of easy walking on most days | Add 2 to 5 minutes a week towards 30 minutes, 5 days a week |
| Strength | 1 set of 8 to 12 light reps, 6 to 8 exercises, 2 days a week | Add a set after 2 to 4 weeks, then small load increases |
| Balance and mobility | 5 to 10 minutes daily | Add balance exercises if unsteady |
Effort should feel light to somewhat hard, with the ability to talk in short sentences. Warm up for 5 to 10 minutes, cool down for 5 minutes, and keep breathing steady. Do not grip and strain. Strength training for longevity explains the movements. Build up patiently, and rest on days when you feel very unwell, feverish, vomiting or short of breath.
An example week for early-stage CKD
| Day | Activity |
|---|---|
| Monday | 15 to 20 minutes of easy walking, plus balance practice |
| Tuesday | Strength session: sit-to-stand, wall push-up, band row, calf raise, 1 to 2 sets of 8 to 12 |
| Wednesday | Rest or a short stroll |
| Thursday | 20 minutes of walking or stationary cycling |
| Friday | Strength session, same pattern, with one new exercise at a time |
| Saturday | 30 minute walk in a park or mall with a friend |
| Sunday | Rest and gentle mobility |
Adjust the plan to your stage, symptoms and the advice of your nephrologist. If you are in later stages or on dialysis, shorter and more frequent sessions often work better. Have your blood pressure and kidney tests checked on the schedule your doctor sets, and tell the doctor about any changes in your exercise routine. If you are overweight, gradual weight loss through activity and food changes can help blood pressure and sugar, but avoid crash diets and very high protein plans, which may not be appropriate for CKD.
If you are on dialysis
- Non-dialysis days are often best for exercise. Some units offer supervised cycling during haemodialysis, so ask.
- Protect the fistula or graft arm. Avoid heavy lifting, hard gripping, leaning on it or wearing tight items. Do not take blood pressure on that arm. Light movement is usually fine, and your team can advise.
- Catheter or peritoneal dialysis. Avoid activities that put strain on the abdomen or catheter site, and keep it dry and clean. Ask your team about lifting and swimming.
- After dialysis, blood pressure may be low and you may feel tired. Rest before exercising, and start with gentle activity.
- Fluid and potassium. Follow your fluid allowance, even on hot days, and confirm your diet limits with your dietitian.
Cautions that apply to kidney disease
- Avoid NSAID painkillers for muscle soreness. Ibuprofen, diclofenac and similar drugs can harm the kidneys. Use only what your doctor or pharmacist says is safe. Our guide to muscle soreness after 50 offers other options.
- Take care with supplements. Protein powders, creatine and herbal or traditional products may affect the kidneys or interact with medicines. Check with your nephrologist or dietitian first.
- Heat and dehydration. Hot, humid weather and heavy sweating can lead to dehydration, which can make kidney function worse. Exercise in the cooler hours, and see exercising in Malaysia’s heat and humidity.
- Blood pressure and heart rhythm. Check your readings, and follow limits your team gives.
- Fatigue and anaemia. CKD can cause tiredness and breathlessness. Pace yourself, and report new or worsening fatigue.
- Bone health. CKD affects bone and mineral balance. Ask about the safest strength and impact exercises.
Warning signs: stop and get help
Stop exercising and seek medical advice for:
- Chest pain, tightness or pressure.
- Severe breathlessness that does not settle with rest.
- Dizziness, fainting or a very fast or irregular heartbeat.
- Sudden swelling in the legs, face or around the eyes, or rapid weight gain.
- Very little or no urine, or dark, tea-coloured urine after exercise.
- Severe muscle pain or weakness, nausea or vomiting.
- Pain, swelling or loss of the “buzz” in a dialysis fistula.
For chest pain that does not settle in a few minutes, call 999.
Key takeaways
- Exercise is usually safe in CKD and supports blood pressure, blood sugar, muscle and wellbeing, but it does not cure the disease.
- Guidelines suggest about 150 minutes of moderate activity a week, adjusted to what you can tolerate.
- Start with walking and light strength training, and progress slowly with your team’s approval.
- If you are on dialysis, protect the access arm and plan exercise around treatment.
- Avoid NSAID painkillers, and check supplements, protein powders and creatine with your nephrologist first.
This is general education, not medical advice, and CKD needs individual guidance. We always work alongside your medical team, never instead of them. If you would like carefully paced coaching, we run home-visit assessments across KL and Selangor.