If you work sitting down or have been inactive for a while, and your knee hurts on stairs, when rising from a chair or after prolonged sitting, this version suits you. We begin with small daily changes and simple exercises. The aim is to move more during the day and gradually build knee and hip muscle capacity. Not every exercise belongs on the first day or in one session. Your knee’s response guides when to lighten or advance the programme.
1🦴 What is kneecap pain, and who is this guide for?
Pain around or behind the kneecap that worsens with stairs, rising or prolonged sitting may be patellofemoral pain. The thigh and hip muscles contribute to movement, but pain cannot be attributed solely to inactivity or muscle weakness. After a period of inactivity, starting exercise should match your current capacity so that movement does not become extra strain continued with incorrect technique.
Softening of the cartilage behind the kneecap is called chondromalacia. It is not the same as front-of-knee pain and cannot alone determine pain severity or an exercise programme. Not every painful knee needs an MRI; examination helps determine whether imaging would be useful. Education and suitable knee exercises, with hip exercises when needed, are the foundations of treatment for patellofemoral pain. Insoles or supportive taping may help some people but are not required for everyone.
Start with exercises you can perform correctly and fit around your daily work. If stairs, walking or rising are limited, or you struggle with technique, examination and physiotherapy can help refine the programme. Consistency and adjustment matter; one hard session does not replace several manageable sessions. If you have not improved after about 6 weeks of regular exercise and activity adjustments, arrange an examination to review the programme. Significant limitations or new symptoms should be assessed sooner.
2🏠 Daily habits to adjust
🪑 Change position during prolonged sitting
If keeping the knee bent increases pain, move the leg slightly forwards or stand up before pain builds up. You need not wait until the working day ends to move. The chair should support your foot and avoid tucking the knee under the seat.
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- Link reminders to daily tasks, such as drinking water or finishing a short task.
- Gently bend and straighten the knee in clear space under the desk. Do not force it into a locked position.
- If sitting or rising has become more painful, review activity adjustments instead of increasing exercise.
🪜 Use the handrail on painful stairs
Move slowly on stairs and hold the handrail for balance and control. If needed, bring both feet onto the same step each time. If one knee hurts more, lead with the less painful leg going up and the painful leg going down.
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- Keep your foot on the step and do not drop your body quickly onto the next leg.
- Keep the supporting knee aligned with the foot. Do not strain the knee just to finish the stairs.
- If the knee gives way or you cannot bear weight, stop using the stairs and get assessed.
🛋 Rise from a firm, suitable chair
Rising from a deep sofa or very low chair may be harder. Move towards the edge of a firm chair, put your feet on the floor and bring your head and chest slightly forwards. Use the armrests if needed. Aim to rise slowly and with control.
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- Use a firm surface to raise the seat. A slippery cushion or several soft pillows are unsuitable.
- Keep the knees aligned with the feet as you rise, without swinging your body.
- When sitting down, move back slowly and do not drop onto the chair.
🚶 Break walking into manageable portions
If you have been inactive for a while, start with a short, level route. Several brief walks may be easier than one long walk. The appropriate amount is one that does not cause increasing pain, limping or clearly worse symptoms afterwards.
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- Choose a pace that keeps your walking natural.
- If the knee becomes more painful, reduce the duration or route and do not add more load during the next activity.
- If walking is uncomfortable, try light stationary cycling; this should not increase pain either.
⏱ Check the knee’s response during and after movement
Mild, brief discomfort may occur when starting exercise, but do not tolerate sharp or increasing pain. Stop if you tilt your body or limp to continue. More pain or swelling afterwards and the next morning indicates that the programme should be lighter.
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- Reduce the range, repetitions or load, and check how your knee symptoms change.
- If symptoms are worse the next morning, lighten the next session and do not progress until they settle.
- Seek assessment for persistent pain or limits in daily activities.
🚗 Make room to change leg position during travel
Sitting still in a car or other transport may increase front-of-knee pain. Adjust the seat so you can control the vehicle safely without keeping the knee too tightly bent. When a safe stop is possible during travel, change your leg position and move a little.
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- Do not compromise pedal control or access to the steering wheel to straighten your knee.
- On a bus or plane, choose a seat with enough legroom if possible.
- After prolonged sitting, take the first steps slowly and check for pain or instability.
🧎 Use a more comfortable position for floor-level tasks
If kneeling or squatting hurts, use a chair or raised surface for your task. Bend the knee only as far as pain does not increase. The current limitation does not mean these positions are permanently forbidden; build tolerance through a gradual programme.
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- Keep items within reach and above floor level.
- A soft mat reduces contact pressure but does not make painful kneeling a suitable activity.
- Use a fixed support to get up from the floor and do not force the painful knee.
⚖️ Choose sustainable habits in place of drastic changes
Regular activity and a sustainable programme are more useful than starting too hard and then stopping. Weight loss is not necessary for everyone with kneecap pain. If you are overweight and have diagnosed osteoarthritis, a weight-loss programme can form part of treatment and should preserve muscle capacity.
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- Fit brief movement into your usual daily tasks.
- Choose a suitable weight-management plan and seek a dietitian’s help if needed.
- Judge progress by daily tasks becoming easier, not just exercise counts or body weight.
👟 Wear comfortable, stable shoes
For everyday walking, choose shoes that are comfortable and do not slip. Particular shoes or insoles are not a guaranteed cure for kneecap pain. If pain varies with footwear, consider your shoe choice together with activity amount.
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- Choose new shoes if the current pair is worn out or has slippery soles.
- When starting to walk, try new shoes on a short route first.
- Ready-made insoles may help some people; buying them is not necessary for everyone.
😴 Spread movement throughout the day
Find brief opportunities to move instead of saving all activity for the end of the day. If pain is worse on a particular day, maintain comfortable movement and reduce harder exercise. Complete rest or making up for an inactive day with a hard session does not help manage the programme.
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- Briefly record activity and the knee’s response to follow the trend.
- Choose a programme that fits your work and sleep schedule.
- If persistent night pain or different symptoms develop, raise them during an assessment.
3🏋️ Home exercises
Tightening the front thigh muscle (Quad Set)
This exercise works the front thigh muscle without bending and straightening the knee. Start with 2 to 3 repetitions, holding each contraction for up to 10 seconds; increase as tolerance improves. Stop with new, sharp or increasing pain.
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Before you start: When starting a programme after inactivity, this option works the front thigh muscle with the knee held still. You can choose it for lighter sessions and assess your response to the programme when getting up or walking in daily life. Sit or lie on your back on a stable bed or mat with the leg outstretched; if this position hurts, first make the position or amount easier.
How to do it:
- Gently press the back of the knee into the bed or mat and tighten the front thigh muscle.
- Hold the contraction within your tolerance, without holding your breath.
- Relax the muscle completely and rest before the next repetition.
Movement tips: Keep the knee comfortable and nearly straight, without lifting the heel off the surface. Breathe calmly and fully relax the muscle between contractions. Feeling the front thigh tighten is expected, but the pressure should not increase knee pain.
Amount, repetitions and progression: Start with 2 to 3 repetitions, holding each contraction for up to 10 seconds; increase as tolerance improves. Reduce the amount if pain or swelling increases afterwards.
Stop immediately if: Stop the exercise if new, sharp or increasing pain develops.
Common mistakes: Do not hold your breath or lift the whole leg instead of tightening the thigh muscle.
Easier version: Use a gentler, shorter contraction. If it still hurts, do not perform it.
Straight leg raise
This exercise works the front thigh muscle while keeping the knee straight. As an example, perform 10 repetitions with a 3-second pause; start with fewer if this is too much. Stop if new, sharp or increasing pain develops in the knee or back.
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Before you start: This option trains the front thigh muscle while the knee stays straight. When restarting activity, focus on lifting the leg with control; the goal is not to test the greatest height after hours of sitting. Choose it according to your comfort and current ability. Lie on your back on a stable mat; bend the opposite knee with that foot on the floor and keep the exercising leg straight. Do not add an ankle weight for now.
How to do it:
- Tighten the front thigh muscle of the exercising leg to keep the knee straight.
- Slowly lift the leg only as high as you can control without arching your back.
- Pause briefly, then slowly lower the leg onto the mat.
Movement tips: Do not bend the knee as the leg rises; keep the pelvis and back still on the surface. Move slowly and breathe normally. Put the leg down and rest between repetitions. Feeling the thigh muscle work is normal, but new knee or back pain is not a reason to continue.
Amount, repetitions and progression: As an example, perform 10 repetitions with a 3-second pause; start with fewer if this is too much. Increase only as control and tolerance improve. Reduce the amount if pain or swelling increases afterwards.
Stop immediately if: Stop if new, sharp or increasing pain develops in the knee or back.
Common mistakes: Do not bend the knee or arch your back to lift the leg higher.
Easier version: Lift the leg less and reduce repetitions. Keep the knee straight and the movement controlled.
Opening the upper knee while lying on your side (Clamshell)
This exercise works the muscles at the side of the hip. As an example, do 10 repetitions on each side with a pause of up to 3 seconds; start without a resistance band. Stop the exercise if you feel pain in the groin or a joint.
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Before you start: In your starting programme, this is one option for training the muscles on the side of the hip while lying down. Alongside your selected thigh exercises, pay attention to how you perform it; rather than making up for inactivity with more resistance, first practise opening the knee slowly and keeping your trunk still. Lie on your side on a stable mat, support your head and bend both knees comfortably. Keep your feet together and hips aligned; start without a resistance band.
How to do it:
- Keep your heels touching.
- Slowly open the upper knee, only as far as you can without rolling the pelvis backwards.
- Pause briefly, then slowly lower the knee.
Movement tips: Keep the heels together and do not let the upper hip roll backwards. Lifting the knee higher is not the main goal. Breathe normally, move slowly and lower the leg between repetitions. You may feel the side-hip muscles working, but do not tolerate groin or joint pain.
Amount, repetitions and progression: As an example, do 10 repetitions on each side with a pause of up to 3 seconds; start without a resistance band. Reduce repetitions if pain increases afterwards and progress according to improving tolerance.
Stop immediately if: Stop the exercise if you feel pain in the groin or a joint.
Common mistakes: Do not roll the pelvis backwards or separate the heels to open the knee further.
Easier version: Open the knee less and continue without a band. The exercise should not become more painful.
Side-lying leg lift (Side-Lying Hip Abduction)
This exercise works the muscles at the side of the hip. Start with 2 to 3 repetitions on each side and gradually increase as the exercise becomes easier. Stop if new or increasing pain develops in the back, groin or outer hip.
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Before you start: This is another option for the muscles on the side of the hip; choose a tolerable movement to match the programme to your current ability. Having several hip exercises in the list does not mean doing all of them in succession. Prioritise a controlled leg lift over finishing the list. Lie on your side on a stable mat and support your head; keep the lower leg straight or slightly bent on the mat for comfort, and the upper leg straight in line with your body. If lying on your side hurts, change position.
How to do it:
- Stack your hips and point the toes of the upper foot forwards.
- Slowly lift the straight upper leg without bringing it forwards or rotating the pelvis.
- Slowly lower the leg, place it on the surface and rest before the next repetition.
Movement tips: Keep the exercising leg in line with your body without rolling the pelvis backwards. Lift only as high as you can maintain this position. Do not hold your breath, and pause between repetitions. Feeling the side-hip muscles work is expected, but back or joint pain should not increase.
Amount, repetitions and progression: Start with 2 to 3 repetitions on each side and gradually increase as the exercise becomes easier. Return to a smaller amount if pain or swelling increases afterwards.
Stop immediately if: Stop if new or increasing pain develops in the back, groin or outer hip.
Common mistakes: Do not bring the leg forwards or roll the pelvis backwards to lift it higher.
Easier version: Lift the leg less and keep repetitions low. Keep the upper leg straight.
Glute bridge
The bridge works the buttock muscles and pelvic control. As an example, do one set of 8 to 12 repetitions with a 3 to 5-second pause. Stop if new back pain or sharp or increasing knee pain develops.
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Before you start: This movement trains the buttock muscles and hip control while lying down. When starting after inactivity, choose it according to your comfort and control, and check your response after exercise too. Greater height is not a separate goal at this stage. Lie on your back on a stable mat, bend your knees at a comfortable angle and place both feet on the floor. If this position alone causes back or knee pain, leave the exercise out for now.
How to do it:
- Gently tighten the buttock muscles and keep your feet on the floor.
- Lift the pelvis to a comfortable height without arching your back.
- Pause briefly, then lower the pelvis slowly and with control.
Movement tips: Keep both sides of the pelvis level and do not let the knees collapse inwards. Breathe normally. Put the pelvis down on the mat and rest between repetitions. Feeling the buttock muscles work is normal, but lifting higher should not cause back pain or knee pressure.
Amount, repetitions and progression: As an example, do one set of 8 to 12 repetitions with a 3 to 5-second pause. Reduce the amount if pain or swelling increases afterwards. Add sets only as tolerance improves.
Stop immediately if: Stop if new back pain or sharp or increasing knee pain develops.
Common mistakes: Do not arch your back or let the knees collapse inwards as you lift.
Easier version: Lift the pelvis less and reduce repetitions. If pain persists, do not do the exercise.
Wall-supported squat (Wall Squat)
This exercise works the thigh muscles through a small, controlled knee bend. As an example, do one set of 8 to 12 repetitions within a small, comfortable range. Stop with sharp or increasing pain, or if you lose control of the knee.
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Before you start: This exercise works the thigh muscles through a small, controlled knee bend. Rest your back and buttocks against a wall and place your feet a comfortable distance forwards. Use a dry, non-slip floor. Start without weights, after you can tolerate simpler exercises.
How to do it:
- Space your feet comfortably and keep them flat on the floor.
- Slide your back a little way down the wall, bending the knees only within a comfortable range.
- Gently push through your feet to return to the starting position.
Movement tips: Keep the knees aligned with the feet and the feet on the floor. Adjust the depth to your control and symptoms. Breathe normally as you move down and up, and rest between repetitions. Feeling the thigh muscles work is expected, but increasing pain or loss of movement control means you should stop.
Amount, repetitions and progression: As an example, do one set of 8 to 12 repetitions within a small, comfortable range. If pain or swelling increases afterwards, reduce the amount or range. Progress as tolerance improves.
Stop immediately if: Stop if sharp or increasing pain develops, or if you cannot control the knee.
Common mistakes: Do not let the knees collapse inwards or lift your feet off the floor to move lower.
Easier version: Move down less, or use a simpler thigh-strengthening exercise.
Rising from a chair (Sit-to-Stand)
This exercise helps practise rising for daily tasks. Start with 5 slow repetitions and gradually increase as control and tolerance improve. Stop with sharp or increasing pain, dizziness or instability.
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Before you start: This exercise relates to the everyday task of getting up from a chair. For someone who spends a lot of time at a desk, it offers a chance to practise rising slowly and with control. Consider strength training alongside short breaks from seated work, and choose this exercise according to your current tolerance. Put a sturdy chair without wheels on a dry, non-slip surface, sit on the edge and place your feet on the floor. If rising is difficult, use the armrests or choose a higher, stable seat.
How to do it:
- Bring your head and chest slightly forwards so your weight moves over your feet.
- Gently push through your feet to stand, keeping the knees aligned with the feet.
- Move your hips back and sit down slowly and with control.
Movement tips: Keep your feet on the floor and do not let the knees collapse inwards. Breathe normally, avoid swinging and sit down to rest between repetitions. Feeling the thigh muscles work is expected. Do not continue if pain increases or you feel dizzy.
Amount, repetitions and progression: Start with 5 slow repetitions and gradually increase as control and tolerance improve. If pain or swelling increases afterwards, reduce repetitions or use a higher, stable seat.
Stop immediately if: Stop the exercise with sharp or increasing pain, dizziness or instability.
Common mistakes: Do not swing your body to stand up or drop onto the chair when sitting down.
Easier version: Use the armrests and a higher, firm seat. Using this help is not an exercise error.
Low step-up
This exercise practises climbing using a low step. Start with up to 5 repetitions with each leg on a low step, using support. Stop with sharp or increasing pain, or if you lose your balance or knee control.
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Before you start: This exercise practises climbing using a low step. Face a stable step and hold the handrail or a firm support. Choose a low, tolerable height. Do not do the exercise if the step or knee is unstable.
How to do it:
- Place the exercising foot fully on the step and find your balance.
- Gently push through the leg on the step to rise and bring the other foot alongside it.
- Return slowly to the floor, then practise with the other leg.
Movement tips: Keep the knee on the step aligned with the foot and do not jump. Breathe normally as you step up and down, and rest on the floor between repetitions. Feeling the thigh muscle work is expected, but do not tolerate increasing pain or instability.
Amount, repetitions and progression: Start with up to 5 repetitions with each leg on a low step, using support. Reduce the amount if pain or swelling increases afterwards. Increase only with better tolerance and control.
Stop immediately if: Stop with sharp or increasing pain, or if you lose your balance or knee control.
Common mistakes: Do not jump off the lower leg or let the knee on the step collapse inwards as you rise.
Easier version: Choose a lower step and use more handrail support. If it still hurts, do a simpler exercise.
Front and back thigh stretches (Quadriceps and Hamstring Stretch)
These are two separate, gentle stretches for thigh flexibility. As an example, hold each stretch for 30 seconds and repeat 2 to 3 times on each side. Release the stretch if you feel pain in the knee, groin or back.
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Before you start: These are two separate, gentle stretches for thigh flexibility. For the front thigh, stand beside a fixed support; for the back thigh, sit on a firm chair. Do not do the standing stretch if you cannot safely balance or hold your ankle.
How to do it:
- For the front thigh, hold the support and gently bend one knee.
- Hold the ankle on the same side and maintain only a gentle stretch. Do not force the knee to bend.
- Slowly put the foot down. Then, for the back thigh, sit on a chair and place one heel forwards on the floor.
- With your back straight, lean slightly forwards from the hips until you feel a gentle stretch behind the thigh, then slowly return.
Movement tips: In the standing stretch, keep the knees close together and the pelvis facing forwards. In the seated stretch, keep the front leg comfortably straight without rounding your back. Breathe normally, hold without bouncing and release between attempts. A muscle stretch is expected, but do not tolerate knee, groin or back pain.
Amount, repetitions and progression: As an example, hold each stretch for 30 seconds and repeat 2 to 3 times on each side. If pain increases afterwards, reduce the amount or range. Progress only with a gentle stretch and no joint pain.
Stop immediately if: Release the stretch if you feel pain in the knee, groin or back.
Common mistakes: Do not bounce into the stretch or round your back when leaning forwards in the seated stretch.
Easier version: Reduce the range and duration. Do not do the standing stretch if holding the ankle is difficult or painful.
4🏟️ Gym training principles
If you are new to the gym, choose a short session you can sustain. A machine is not automatically safer. Its seat, range and weight should be set so you can move slowly and correctly.
Starting and finishing the session
Start with easy walking or cycling that does not increase pain. A few light movements let you check how comfortable the knee feels. At the end, gradually reduce intensity and use only gentle stretches. Warming up does not make increasing pain acceptable.
Choosing weights and progressing
If you have not trained for a while, start with a weight that lets you move slowly without swinging your body. At this stage, the goal is to learn a tolerable range and movement control; when these are suitable, you can increase repetitions or weight. The number marked on the machine is not your personal target. If pain or swelling increases after a session, return to the last tolerable amount; a fixed increase is not suitable for everyone.
Movement technique and breathing
During leg exercises, keep the knee aligned with the foot and the foot supported on the surface. Breathe out during effort and do not hold your breath. Choose depth according to comfort and control; bending the knee further does not by itself make the exercise better.
Exercise order and rest
When starting at the gym, choose a time that allows you to perform the movements calmly and rest between them. After warming up, do not rush to finish a long list. If you are still breathing fast or cannot keep your knee aligned with your foot, keep resting until your breathing and movement control are suitable. A session you can keep doing goes alongside breaks from seated work; the goal is not to fit the programme into the shortest possible time.
Painful exercises and alternatives
If an exercise increases pain, reduce the load or range, or choose an easier option. No movement pattern is forbidden for everyone. What you cannot currently control or tolerate is unsuitable for this session.
- Use a shorter range and support, or a simpler thigh exercise, instead of painful squats (lowering and rising without a chair) or lunges (lowering with one foot forwards and one back).
- Activity such as cycling that makes you breathe harder and your heart beat faster is called aerobic activity. For painful jumping or running, choose low-impact aerobic activity you can tolerate.
- If a machine increases pain even when correctly adjusted, choose another exercise instead of continuing with incorrect technique.
On a painful day
When symptoms are worse, lighten the programme and keep comfortable movement. Making up for the previous session with more weight makes load management harder. New symptoms, obvious swelling or instability should be assessed first.
A sustainable programme
Spread brief activity throughout the week. You do not need to do all this article’s exercises in one session. A programme that fits daily work is easier to continue. Adjust the number of sessions and exercises to your knee’s response.
As an example, choose 3 or 4 tolerable exercises and train 2 to 3 days a week. This is a starting example, not the required amount for everyone. Also check each exercise’s amount and your knee’s response.
When should you stop a set?
Stop that set with sharp or increasing pain, the knee giving way, or loss of control. If you have any urgent symptoms in the warning section, do not try the exercise again and get urgent medical help now. If you have no urgent symptoms but have another warning sign listed in the warning section, see a doctor to assess the cause before resuming exercise. Only if neither urgent symptoms nor other warning signs are present should you review the range, amount and exercise choice before repeating it.
- Do not add repetitions to finish the programme while pain is increasing.
- Do not lift weights while holding your breath, swinging your body or losing your balance.
- Do not respond to worse symptoms after a session by increasing the load on your own.
5⚠️ Which symptoms need medical assessment?
Do not continue exercising with these symptoms. How soon to seek help depends on the symptom:
- If the area around your knee is red or hot and you also have any of the following, get urgent medical help now: a very high temperature, feeling hot or cold, or shivering.
- If your knee has changed shape or is badly swollen, or you cannot move it or put any weight on that leg, get urgent medical help now. This applies even without an obvious injury.
- If your knee locks, gives way or clicks painfully, get urgent medical help now. Painless clicking on its own is normal.
- If your knee is very painful, get urgent medical help now.
- If you have constant knee pain that does not change with rest or activity, or knee pain that becomes much worse at night, see a doctor to assess the cause before starting or resuming exercise.
6✅ Summary and next steps
If you are inactive, begin with simple, tolerable daily activities. Change position during prolonged sitting and continue knee and hip exercises regularly. More exercise is appropriate when technique stays correct and symptoms do not worsen during movement, afterwards or the next morning. If daily tasks are limited or you are not progressing, assessment can help review the cause of pain and the programme.
For assessment of knee pain and advice on suitable exercises, call Dr Jalil Emad’s clinic on 09137825207, or book an appointment online. In an emergency, do not wait for the clinic to reply; follow the instructions in the warning signs section.
Surgery in which the surgeon uses a small camera to see inside the knee joint is called arthroscopy. To learn about assessment and treatment of problems inside the knee, read this page: Knee arthroscopy
Related guides: Service page: Knee Arthroscopy · Also related: Total Knee Replacement Surgery: Postoperative Care and Rehabilitation
This guide is educational and does not replace an examination or a programme tailored to your circumstances.
7📚 Scientific references
View scientific references
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- NHS Dynamic Health: Patellofemoral knee pain. Checked 2026-10-09. https://www.dynamichealth.nhs.uk/help-and-advice/knee-pain/patellofemoral-knee-pain/
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- Locala/CHFT: Exercises for anterior knee pain, Part2. Checked 2026-10-09. https://www.locala.org.uk/fileadmin/Services/MSK/Knee/PFJP_Programme__Part_2_.pdf
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- AAOS OrthoInfo: Patellofemoral Pain Syndrome. Checked 2026-10-09. https://www.orthoinfo.org/diseases--conditions/patellofemoral-pain-syndrome/
- AAOS OrthoInfo: Knee Conditioning Program. Checked 2026-10-09. https://www.orthoinfo.org/recovery/knee-conditioning-program/
- Gateshead Health NHS: Knee Osteoarthritis (OA). Official patient guidance
- Maidstone and Tunbridge Wells NHS: Knee soft tissue injury, non-follow-up. Official patient guidance
- NICE NG226: Osteoarthritis in over16s: diagnosis and management. Official source
- Ophey M, et al. Dutch multidisciplinary guideline on anterior knee pain: Patellofemoral pain and patellar tendinopathy. Knee Surg Sports Traumatol Arthrosc. 2025;33(2):457–469. doi:10.1002/ksa.12367. ePub 2024-07-24. PubMed 39045713
- Dorset NHS Musculoskeletal Matters: Knee pain: Osteoarthritis of the knee. Official patient guidance
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- Centers for Disease Control and Prevention. What Counts as Physical Activity for Adults: Aerobic activity – what counts? Official aerobic-activity definition
- Oxford University Hospitals NHS Foundation Trust, OxSport. Patellar Femoral Pain Syndrome (PFPS): Advice and management. January 2026; printed p.17. Official patient leaflet
