Exercises for Seniors With Knee Pain: Safe, Gentle Moves and a 4-Week Plan
By the FitLife Hub editorial team | Last updated: November 12, 2026
When your knees hurt, it is natural to want to rest. But for most older adults, staying gently active is one of the best things you can do for sore knees. Strong thigh and hip muscles share the load with your joints, and movement helps keep them from stiffening. The challenge is knowing which exercises are safe, how much pain is okay, and when to see a doctor.
This guide answers all three. You will find a simple pain-check rule, the warning signs that need medical attention, a complete 20-minute knee-friendly routine with timings that add up, a gentler 10-minute version for sore days, and a four-week plan that starts small. You can build confidence one step at a time.
Health note: This article is general information, not medical advice, and it cannot tell you what is causing your knee pain. Knee pain has many causes, including arthritis, injury, and other conditions. If you have not had your knee checked, see your doctor or a physiotherapist first, especially if you have a joint replacement, a recent injury, heart or balance problems, or take blood-thinning medicine.
Quick answer
- Should I exercise with knee pain? Usually yes, gently. Guidelines for knee arthritis strongly recommend exercise.
- Best starting moves: thigh-strengthening and gentle range-of-motion exercises, such as quad sets and seated knee extensions.
- How much pain is okay? Mild discomfort that settles quickly is fine. Sharp pain, or pain or swelling that is worse the next day, means ease off.
- Routine: 20 minutes (exactly), with a 10-minute gentle version and a four-week build-up.
- See a doctor if your knee locks, gives way, swells badly, is hot and red, or does not improve in a few weeks.
Is It Safe to Exercise With Knee Pain?
For most people with long-term knee pain from osteoarthritis, yes. The 2019 American College of Rheumatology and Arthritis Foundation guideline strongly recommends exercise for knee osteoarthritis. It lists walking, strengthening, balance and coordination training, and water exercise as options, and it notes that no single type has been shown to be best. Tai chi is also strongly recommended. The same guideline strongly recommends weight loss for people with knee osteoarthritis who are overweight or have obesity.
Australia’s RACGP also describes exercise as a core treatment for osteoarthritis regardless of age, pain level, or severity. Not moving can make a stiff knee stiffer, so the goal is the right kind and amount of movement, not none.
An important limit: that advice is about osteoarthritis. A new injury, a very swollen knee, or a knee that locks or gives way needs to be checked first.
How Much Pain Is Okay While Exercising?
This is the question most articles skip. Physiotherapy services use a simple 0 to 10 pain scale, where 0 is no pain and 10 is the worst pain imaginable. A practical way to use it:
| Pain during exercise | What it means | What to do |
|---|---|---|
| 0 to 3 (green) | Mild discomfort or stiffness | Carry on, and build up slowly. |
| 4 to 5 (amber) | Noticeable but tolerable | Slow down or reduce the range. It is acceptable only if it settles within 24 hours. |
| Above 5, or sharp (red) | Too much for your knee today | Stop that move and rest. Ask a professional if it keeps happening. |
The next-day check: An NHS physiotherapy leaflet advises that pain of 5 out of 10 or less that settles within 24 hours means you are doing an appropriate amount, while pain above 5 or lasting longer than 24 hours means you should ease back. RACGP guidance is a little stricter. It says to revise your program if pain is excessive, stays raised for more than 2 hours after exercise, or if the knee is more swollen the next day. Because guidance varies, use the stricter rule: if your knee is clearly more painful or swollen the next day, do less next time.
These are guides, not rules, and your own physiotherapist may set different limits.
When to See a Doctor (and When It Is Urgent)
The NHS advises seeing a doctor if your knee pain does not improve within a few weeks, if your knee locks, gives way, or clicks painfully (painless clicking is normal), if you have severe pain at night or at rest, or if you have unexplained weight loss. It also lists pain, swelling, numbness, or tingling in the calf below the affected knee as a reason to get checked.
Get urgent medical help (for example, NHS 111 in the UK, or urgent care or your local emergency number elsewhere: 911 in the US and Canada, 000 in Australia) if:
- your knee is very painful, or you cannot move it or put any weight on it
- your knee is badly swollen or has changed shape
- your knee is hot and red, especially with a fever or feeling unwell, which can signal infection or gout
- the pain followed a fall or a hard impact
Stop exercising and get medical advice if you have chest pain, trouble breathing, or dizziness, as with any exercise.
Before You Start: Set Up for Comfort
- Chair: a sturdy chair without wheels, ideally against a wall. A firm cushion can raise the seat.
- Support: a counter or the back of a heavy chair for the standing moves.
- Shoes: flat, cushioned, supportive, non-slip.
- After a flare-up: an NHS leaflet suggests resting the knee for the first day or two but avoiding long spells without moving, and gently moving the knee for 10 to 20 seconds every hour while you are awake. If the knee is swollen or warm, a wet towel followed by an ice pack for 10 to 15 minutes every 2 hours may help.
- Walking aid: the same ACR/Arthritis Foundation guideline strongly recommends cane use for people with knee osteoarthritis. Ask your doctor or physiotherapist if one could help you.
Your 20-Minute Knee-Friendly Routine (Exactly 20 Minutes)
| Part | What you do | Time |
|---|---|---|
| Warm-up | Ankle circles, seated march, seated heel slides, gentle knee bends | 4:00 |
| Strength | 6 moves × 2 sets, each set 40 seconds work + 20 seconds rest (6 × 2:00) | 12:00 |
| Cool-down | Slow breathing, calf stretch, hamstring stretch, neck release | 4:00 |
| Total | 20:00 |
Check: 4 + 12 + 4 = 20 minutes.
Warm-up (4 minutes)
- Ankle pumps and circles: 1 minute, seated.
- Seated march: 1 minute, lifting your knees gently.
- Seated heel slides: 1 minute (30 seconds on each leg). Slide your foot back toward the chair, then forward again.
- Gentle knee bends and straightens: 1 minute, seated, within a comfortable range.
Strength (12 minutes)
For each move, do 2 sets. Work for 40 seconds, then rest 20 seconds. Move slowly and keep your pain in the green zone. Finish feeling you could do a couple more good reps.
| # | Move | How | Works | Easier option and tip |
|---|---|---|---|---|
| 1 | Seated quad set | Sit tall with one leg straight and your heel on the floor. Tighten the front of your thigh by pressing the back of your knee down. Hold 5 seconds, relax, and switch legs. | Front of the thigh (quadriceps) | Hold for 2 to 3 seconds at first. Keep breathing. |
| 2 | Seated knee extension | Sit near the front of the chair, slowly straighten one knee until the leg is almost level, pause briefly, and lower slowly. Alternate legs. | Front of the thigh | Use a smaller range, or place a rolled towel under the knee. Do not kick or lock the knee. |
| 3 | Sit-to-stand from a raised seat | Sit on a firm, raised seat with feet hip-width apart. Lean forward, press through your feet to stand, and sit back slowly. | Thighs and glutes | Use a higher seat and push off your thighs. Keep knees in line with your toes. Do not drop into the chair. |
| 4 | Supported calf raise | Hold a counter, rise onto the balls of your feet, and lower slowly. | Calves | Rise only a little, or do seated heel raises. Sit if you tire. |
| 5 | Standing hamstring curl | Hold a counter and bend one knee, bringing your heel toward your buttock. Lower slowly and switch. | Back of the thigh | Keep thighs side by side. Use seated heel slides if standing is hard. |
| 6 | Standing side leg lift | Hold a counter, lift one leg out to the side with toes forward, and lower slowly. | Outer hip | Make the lift small and keep your torso upright. |
Cool-down (4 minutes)
- Slow breathing: 1 minute. Breathe in through your nose for 4 counts and out through your mouth for 6.
- Calf stretch: 30 seconds on each leg (1 minute), with a towel around the ball of your foot while seated, or at a wall.
- Seated hamstring stretch: 30 seconds on each leg (1 minute). Extend one leg with your heel on the floor and lean forward slightly.
- Neck and shoulder release: 1 minute.
Track how your knees respond. Note your pain level (0 to 10) during and the next morning after each session. This helps you see what your knee tolerates. Try our free 4-week workout tracker.
A Gentle 10-Minute Version for Sore or Stiff Days
When your knees feel stiff or flared up, do this lower-load routine instead. You can do it seated, or lying on a bed or sofa.
| Move | How | Time |
|---|---|---|
| Ankle pumps | Point and flex your feet. | 1:00 |
| Heel slides | Slide one heel toward you and back, then switch (1 minute per leg). | 2:00 |
| Quad sets | Tighten the thigh, hold 5 seconds, relax (1 minute per leg). | 2:00 |
| Seated short knee extensions | Place a rolled towel under the knee and straighten it slowly (1 minute per leg). | 2:00 |
| Knee squeeze | Squeeze a small cushion between your knees, hold briefly, and release. | 1:00 |
| Slow breathing | In for 4 counts, out for 6. | 2:00 |
| Total | 10:00 |
Check: 1 + 2 + 2 + 2 + 1 + 2 = 10 minutes. If a move increases your pain beyond the green or amber zone, skip it.
How to Build Up Over Four Weeks
| Week | What to do | Total |
|---|---|---|
| Week 1 | Warm-up (4) + strength moves 1 to 3 (6) + Cool-down (4) | 14:00 |
| Week 2 | Warm-up (4) + strength moves 1 to 4 (8) + Cool-down (4) | 16:00 |
| Week 3 | Warm-up (4) + strength moves 1 to 5 (10) + Cool-down (4) | 18:00 |
| Week 4 | The full routine, with all 6 moves | 20:00 |
How to progress: Add a move only if the previous week left your knees in the green zone the next day. Once the full routine feels easy, you can slow the lowering part of each move to about 3 seconds, or add light ankle weights, with your physiotherapist’s approval. If a week was too much, repeat it. If symptoms do not improve after 6 to 8 weeks, the NHS leaflet suggests seeing your doctor for a physiotherapy referral, and if they are improving, even slowly, you can keep going for up to 3 months.
Low-Impact Cardio That Is Kind to Sore Knees
Strength work is the foundation, but your heart and lungs need movement too. The CDC advises older adults to build up to at least 150 minutes of moderate-intensity activity a week, plus muscle strengthening on 2 or more days and balance activities. Moderate means you can talk but not sing. Low-impact options include:
- Walking on flat, even ground in cushioned shoes. Start with short walks. Our free walking challenge tracker can help.
- Stationary cycling with the seat high enough that your knee does not bend sharply.
- Water exercise in a pool, where the water supports your weight.
- Tai chi, which the ACR/Arthritis Foundation guideline strongly recommends for knee osteoarthritis.
- Seated cardio if standing is tiring. See our chair exercises for seniors.
Moves to Modify or Skip While Your Knees Are Sore
The right answer depends on your knee and cause of pain, so this is general guidance, not a rule. Physiotherapists commonly suggest being careful with:
- Deep squats and lunges, which bend the knee a long way under load. A shallow sit-to-stand is a gentler alternative.
- Running and jumping, which add impact. Choose walking, cycling, or water exercise instead.
- Twisting on a planted foot, which can strain the knee. Turn your whole body by stepping.
- Kneeling on hard floors, which can be painful. Use a cushion, or avoid it.
- Repeated stairs on bad days. Use the handrail and take one step at a time.
If any move hurts more than your amber limit, skip it and ask your physiotherapist for a substitute.
Your Simple Weekly Schedule
- Monday, Wednesday, Friday: the 20-minute routine (the version for your week).
- Tuesday and Thursday: the gentle 10-minute routine, or a short walk, bike ride, or swim.
- Saturday: optional low-impact cardio.
- Sunday: rest.
Everyday Habits That Help
- Keep moving through the day. Avoid sitting or standing in one position for long spells.
- Use a higher seat and arms on chairs to make standing easier.
- Think about your weight, if your doctor has advised it. Even modest steady loss can ease the load on your knees. See our guide to choosing a weight loss program and our calorie deficit calculator.
- Eat well and stay hydrated. See our healthy eating habits for beginners and protein intake calculator.
Common Mistakes to Avoid
- Resting completely. Long periods of not moving can stiffen the knee.
- Pushing through sharp pain. Mild discomfort is one thing, sharp pain is another.
- Doing too much too soon. Build up over weeks.
- Skipping the next-day check. It is the best sign of whether you overdid it.
- Locking the knee when you straighten it.
- Ignoring warning signs. Locking, giving way, or a hot red swollen knee needs medical advice.
See also our 7 chair workout mistakes beginners make.
Frequently Asked Questions
Should I exercise when my knee hurts?
Often yes, gently, if the cause is osteoarthritis or general joint pain and your doctor agrees. Keep pain mild, and ease off if your knee is clearly worse the next day. If the pain is new, severe, or followed an injury, get it checked first.
What is the best exercise for knee pain?
There is no single best one. The ACR/Arthritis Foundation guideline says no type of exercise has been shown to beat the others for knee arthritis. Thigh-strengthening moves such as quad sets and knee extensions, walking, cycling, water exercise, and tai chi are all reasonable choices.
Is walking good for knee pain?
For many people it is. Walking is the most studied exercise for knee osteoarthritis. Start with short walks on flat ground in cushioned shoes, and build up gradually.
Are squats bad for knees?
Not always, but deep squats are demanding. A shallow sit-to-stand from a raised seat is a gentler alternative, and your physiotherapist can advise on your range.
How long before exercise helps my knees?
It varies. An NHS leaflet suggests that if symptoms are improving, even slowly, you can continue for up to 3 months, and that you should see your doctor if they have not improved in 6 to 8 weeks.
Is clicking in my knee normal?
Painless clicking is normal, according to the NHS. Painful clicking, locking, or giving way is a reason to see a doctor.
Is cycling or swimming better than walking?
None is clearly better. Cycling and water exercise take weight off the knee, which some people prefer, and walking is simple and free. Choose what you will do regularly and what feels comfortable.
Can I do these if I have had a knee replacement?
Follow your surgeon’s and physiotherapist’s instructions first. This routine is not a replacement for a post-surgery rehabilitation plan.
Final Thoughts
Sore knees do not mean you have to stop moving. With gentle strengthening, a simple pain check, and a plan that builds slowly, many older adults feel stronger and more comfortable over time. Start with the gentle 10-minute routine this week, notice how your knees feel the next morning, and go from there.
More gentle options. If standing is tiring, try our chair exercises for seniors, or our 10-minute low-impact workout for beginners over 50. For an easy start at home, see our 15-minute low-impact workout.
Sources
- American College of Rheumatology and Arthritis Foundation: 2019 Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee
- NHS: Knee pain (when to see a doctor or get urgent help)
- NHS Healthier Together: Knee pain (acute) (further warning signs)
- East Lancashire Hospitals NHS Trust: Knee Pain (not caused by accident or injury) patient leaflet (pain scale and next-day check)
- RACGP HANDI: Exercise for knee osteoarthritis
- CDC: Older Adult Activity: An Overview
- CDC: How to Measure Physical Activity Intensity (the talk test)
This article is for general education only and does not replace advice from your doctor or physiotherapist. See our Medical Disclaimer and Editorial Policy.