Exercises to Relieve Knee Pain at Home: 7 Simple Moves to Improve Strength and Mobility

Knee pain can make everyday activities such as walking, climbing stairs, standing for long periods, or getting out of a chair feel like a challenge. Whether your discomfort is related to stiffness, overuse, ageing, or a condition such as osteoarthritis, finding safe ways to stay active can help you maintain mobility and improve your quality of life.

The good news is that you do not always need a gym or expensive equipment to start working on your knee strength and flexibility. Several gentle exercises can be performed at home with a chair, a towel, and a little space.

However, the right approach depends on what is causing your pain. In this guide, Rehab Oasis shares seven simple exercises that may help relieve knee discomfort, improve movement, and strengthen the muscles that support your knees.

What Causes Knee Pain?

Knee pain can develop gradually or occur suddenly following an injury. Some common causes include:

Osteoarthritis: A joint condition that can cause pain, stiffness, and reduced mobility.

Muscle weakness: Weakness in the quadriceps, hamstrings, and hip muscles may reduce the support available to the knee joint.

Overuse: Repeated running, jumping, squatting, or other demanding activities may irritate the tissues around the knee.

Sprains and Strains: Stretching or tearing ligaments and muscles can cause pain and swelling.

Tendon problems: Irritation of the tendons around the knee may cause pain during movement.

Previous Injuries or Surgery: These can affect knee strength, flexibility, and stability.

Because knee pain has many possible causes, exercises that help one person may not be suitable for another. A physiotherapist can help identify contributing factors and recommend an appropriate exercise programme.

Why Are Exercises Important for Knee Pain?

When your knee hurts, it may be tempting to avoid movement altogether. However, prolonged inactivity can contribute to muscle weakness and stiffness, potentially making everyday movements more difficult.

Appropriate exercise can help by:

• Strengthening the quadriceps and hamstrings, which support knee movement and help absorb forces.

• Improving flexibility and the knee's range of motion.

• Supporting balance and stability during walking and standing.

• Helping maintain independence with daily activities.

• Improving general fitness and supporting healthy weight management when appropriate.

Clinical guidance from the National Institute for Health and Care Excellence (NICE) recommends tailored therapeutic exercise for people with osteoarthritis. Regular, consistent exercise can help reduce symptoms and improve physical function, although discomfort may temporarily increase when starting a programme.

7 Exercises to Relieve Knee Pain at Home

The following exercises are general starting points for adults with mild, stable knee discomfort. They are not appropriate for every knee condition, particularly an acute injury, a significantly swollen knee, or a recent operation without professional guidance.

1. Heel Slides

Best for: Improving knee flexibility and reducing stiffness.

Heel slides gently move the knee through a comfortable range of motion and can be performed while lying on your bed or on an exercise mat.

How to do it:

• Lie on your back with both legs straight.

• Slowly slide the heel of the affected leg towards your buttocks, bending your knee as far as is comfortable.

• Pause briefly without forcing the movement.

• Slowly slide your heel back until your leg is straight.

• Repeat 5–10 times if comfortable.

Tip: Move slowly and avoid forcing your knee to bend beyond its comfortable range.

2. Quadriceps Sets (Thigh Muscle Tightening)

Best for: Activating and strengthening the muscles at the front of your thigh.

Your quadriceps help straighten the knee and contribute to stability during walking, standing, and other daily activities.

How to do it:

• Sit or lie down with your affected leg straight.

• Place a small rolled towel beneath your knee if comfortable.

• Tighten the muscles at the front of your thigh and gently press the back of your knee towards the towel or bed.

• Hold for 5–10 seconds.

• Relax and repeat 5–10 times.
  

Tip: Keep breathing normally and avoid tensing your entire body.

3. Straight-Leg Raises

Best for: Strengthening the quadriceps without repeatedly bending the knee.

This exercise is commonly included in knee rehabilitation programmes, but it should be performed only if you can straighten the knee comfortably.

How to do it:

• Lie on your back with one knee bent and the foot resting flat on the bed or floor.

• Keep the affected leg straight.

• Tighten the thigh muscle and slowly raise the straight leg approximately 15–20 centimetres.

• Hold for 3–5 seconds.

• Slowly lower the leg and relax.

• Start with 5 repetitions and increase gradually if comfortable.

Tip: Avoid arching your lower back or swinging your leg upwards.

4. Seated Knee Extensions

Best for: Improving knee movement and strengthening the front thigh muscles.

This is a convenient option for people who find it difficult to exercise on the floor.

How to do it:

• Sit upright in a sturdy chair with your feet flat on the floor.

• Slowly straighten one knee, lifting your foot until your leg is extended as far as comfortable.

• Hold for 2–5 seconds.

• Slowly lower your foot to the floor.

• Repeat 5–10 times on each leg, as tolerated.

Tip: Use a controlled movement instead of kicking your leg out quickly. Do not force the knee straight if it is painful or restricted.

5. Hamstring Stretch

Best for: Improving flexibility in the muscles at the back of the thigh.

Tight hamstrings can contribute to movement restrictions around the hip and knee. Gentle stretching may help improve flexibility.

How to do it:

• Sit near the front of a sturdy chair.

• Extend one leg in front of you with your heel resting on the floor.

• Keep your back relatively straight and gently lean forward from your hips.

• Stop when you feel a mild stretch at the back of your thigh.

• Hold for 15–30 seconds, then relax.

• Repeat 2–3 times on each side if comfortable.

Tip: You should feel a gentle stretch, not sharp pain behind your knee.

6. Calf Stretch

Best for: Improving lower-leg flexibility and supporting comfortable walking.

The calf muscles cross the ankle and connect through structures that influence movement around the knee. Maintaining calf flexibility can help with general lower-limb mobility.

How to do it:

• Stand facing a wall and place both hands against it for support.

• Step one leg backwards while keeping the other leg in front.

• Keep the back heel on the floor and gently bend the front knee.

• Lean forward slightly until you feel a stretch in the calf of the back leg.

• Hold for 15–30 seconds.

• Repeat 2–3 times on each side.

Tip: Use a wall or sturdy support to maintain your balance. Do not perform this stretch if standing causes significant knee pain.

7. Sit-to-Stand

Best for: Building strength for everyday activities such as getting out of a chair.

Sit-to-stand exercises engage the quadriceps, gluteal muscles, and other muscles involved in standing and walking. They may be helpful when performed with appropriate technique and a comfortable range of movement.

How to do it:

• Choose a sturdy chair that will not slide, preferably with armrests if you need extra support.

• Sit with your feet approximately hip-width apart and flat on the floor.

• Lean your upper body slightly forward.

• Push through your feet and use your hands on the armrests if necessary to stand.

• Slowly lower yourself back into the chair.

• Start with 3–5 repetitions and increase gradually as your strength improves.

Tip: Keep your knees aligned with your feet and avoid letting them collapse inward. If standing up causes significant pain, begin with seated exercises instead and seek professional advice.

How Often Should You Do Knee Exercises?

Consistency is more important than doing too much in one session. If you are new to exercise or experiencing discomfort, begin with one or two gentle movements and a small number of repetitions.

Use these guidelines as a general starting point:

• Warm up: Spend 5–10 minutes moving gently, if tolerated.

• Start small: Try 5 repetitions of a comfortable exercise rather than pushing through a full routine.

• Increase gradually: Add repetitions or sets as the exercises become easier.

• Stretch gently: Aim for 15–30-second holds when appropriate and comfortable.

• Monitor your symptoms: Reduce or stop an exercise if it increases your pain or swelling.

For some people with knee osteoarthritis, small amounts of movement spread throughout the day may be easier to tolerate than one long exercise session. A physiotherapist can help you decide how often to exercise and which movements are best for your condition.

Additional Tips to Manage Knee Pain at Home

Exercises are only one part of managing knee discomfort. These practical steps may also help:

1. Avoid prolonged inactivity. Change positions regularly and keep moving within your comfortable limits rather than remaining seated for long periods.

2. Modify activities that aggravate your symptoms. Temporarily reduce demanding activities such as running, jumping, deep squats, or repeated stair climbing if they worsen your pain.

3. Apply ice for recent pain or swelling. Wrap an ice pack in a towel and apply it for up to 15–20 minutes at a time. Never place ice directly on your skin.

4. Choose appropriate low-impact activities. Depending on your condition, gentle walking on level ground, swimming, or stationary cycling may help maintain fitness without the repeated impact of running.

5. Maintain a healthy weight where appropriate. For people living with knee osteoarthritis who are overweight, weight management can reduce pain and improve physical function.

6. Wear supportive, comfortable footwear. Shoes that fit properly and provide suitable support may make walking more comfortable.

When Should You See a Physiotherapist or Doctor?

Although mild knee discomfort may improve with appropriate home care, persistent or severe symptoms should not be ignored.

Seek urgent medical assessment if:

• Your knee becomes severely swollen or changes shape.

• You cannot bend or move the knee, or cannot put weight on your leg.

• Your knee locks, repeatedly gives way, or becomes unstable.

• Your knee is hot and red, particularly if you also have a fever or feel unwell.

• You develop severe pain following a fall, twisting injury, or other trauma.

Arrange an assessment if your pain is worsening, keeps returning, affects your sleep or normal activities, or has not improved after a couple of weeks of home care.

If you have recently undergone knee surgery, sustained a significant injury, or been diagnosed with a specific knee condition, follow the exercise guidance provided by your healthcare professional rather than starting a general routine independently.

How Rehab Oasis Can Help

At Rehab Oasis, we understand how knee pain can affect your ability to work, exercise, care for your family, and enjoy everyday life.

Our physiotherapy services focus on assessing your movement, identifying factors contributing to your discomfort, and developing an individualised rehabilitation plan to support your recovery.

Depending on your assessment and needs, your treatment may include:

• Guided strengthening and flexibility exercises.

• Mobility and functional training.

• Advice on modifying activities and managing symptoms.

• Rehabilitation following an injury or knee surgery.

• A personalised home exercise programme to support progress between sessions.

You do not have to wait until knee pain becomes severe before seeking help. Early assessment can help you understand what may be causing your symptoms and how best to manage them.

Ready to take the next step towards moving more comfortably?

Contact Rehab Oasis to schedule a physiotherapy assessment.