Knee Osteoarthritis Exercises to Ease Pain at Home

Knee osteoarthritis is one of the most common reasons older adults feel stiff, sore or unsteady on their feet, yet it is also one of the most responsive to the right kind of movement. This guide walks through practical knee osteoarthritis exercises you can do at home, how to manage load so you build strength without triggering a flare, and when it is worth having a physiotherapist take a look. It is general information only, not personal medical advice.

Why exercise comes first for knee osteoarthritis

It can feel back-to-front, but moving a sore, arthritic knee is one of the best things you can do for it. Australian and international clinical guidelines consistently place education, exercise and, where relevant, weight management at the foundation of managing knee osteoarthritis, usually ahead of medication and long before any talk of surgery. Structured programs such as GLA:D (Good Life with osteoArthritis in Denmark), which combines education with strengthening and neuromuscular exercise, are used across Australia because they help many people reduce pain and move more easily.

The reasoning is straightforward. The muscles around the knee, especially the quadriceps at the front of the thigh and the muscles around the hip, act as shock absorbers and stabilisers. When they are strong, they share the load and control movement, so the knee feels steadier and less painful. When they weaken through age or inactivity, the joint takes more of the strain. Building that muscle back up is the single most useful thing most people can do at home.

Getting started safely

Before you begin, a few ground rules keep home exercise both safe and effective:

• Warm up first. A few minutes of marching on the spot, gentle seated marching, or a slow walk gets the blood flowing and makes the knee more comfortable to work.
• Aim for little and often. A short session most days builds strength far better than one long, punishing effort once a week.
• Have something sturdy nearby. A kitchen bench or the back of a solid chair to hold means you can push a little harder without worrying about your balance.
• Expect some discomfort, not sharp pain. A bit of achiness during and after exercise is normal and safe with osteoarthritis (more on this below).

Four home exercises for knee osteoarthritis

These are general, widely used exercises for knee OA. They are a starting point rather than a personalised program, so ease in gently and stop anything that causes sharp or lasting pain. Begin with what you can manage comfortably and build up over weeks, not days.

1. Sit-to-stand from a chair

This strengthens the quadriceps and glutes and trains a movement you use dozens of times a day. Sit towards the front of a firm chair, feet flat and slightly back. Lean forward “nose over toes” and stand up, using your hands on the armrests only as much as you need. Sit back down slowly, with control. Try a set of 5 to 10, rest, then repeat. As you get stronger, use your hands less and slow the sitting-down phase.

2. Seated knee extensions

Sit tall in a chair. Slowly straighten one knee until the leg is out in front of you, hold for a couple of seconds, then lower slowly. This targets the quadriceps and is gentle on the joint. Do 8 to 12 on each leg. To progress, add a light ankle weight.

3. Standing hip strengthening

Holding a bench for balance, stand on one leg and slowly lift the other leg out to the side, keeping your body upright, then lower with control. Do 8 to 12 each side. Strong hip muscles control how the knee tracks and take pressure off it, which is why hip work features so heavily in good knee OA programs.

4. Calf raises

Holding a bench, rise up onto the balls of both feet, then lower slowly. This strengthens the calf and supports both the knee and your balance. Do 10 to 15. Progress by lowering more slowly or, in time, working on one leg with support.

Range of movement matters too. Gently bending and straightening the knee as far as is comfortable, several times a day, keeps the joint mobile and eases morning stiffness. If you would like a program tailored to your knee and your goals, a home visit from a physiotherapist experienced with older adults can set the right exercises, loads and progressions for you.

Load management: what helps and what harms

The biggest worry people have is that exercise will “wear the knee out” faster. Current evidence does not support that. Appropriate loading helps keep muscle and cartilage healthy, and the key is managing how much you do rather than avoiding load altogether.

What tends to help:

• Progressive strengthening. Gradually adding a little more, whether extra repetitions, a slower tempo or a light weight, is how muscle gets stronger. The knee adapts when you build up sensibly over weeks.
• Low-impact aerobic activity. Walking, stationary cycling, water-based exercise and tai chi keep the joint moving and help with weight and mood, without heavy pounding.
• Pacing across the day. Breaking up tasks, alternating sitting and standing, and spreading activity out beats doing everything in one hit.
• Consistency. The people who get the most relief are those who stick with their exercises. A modest program done regularly beats an ambitious one you abandon.

What tends to set you back:

• Too much, too soon. A sudden spike in activity, such as a big gardening day or a long hike, is a common trigger for a flare.
• Complete rest during a sore spell. Resting a stiff knee for days on end lets the muscles weaken further, which usually makes things worse in the longer run.
• Deep, heavily loaded squats or lunges early on, especially while the knee is very sore. Build the foundations first.
• Ignoring pain that lingers. The simple guide below helps you judge how much is right for you.

How much knee pain is okay during exercise?

A rule of thumb many physiotherapists use: some discomfort during and shortly after exercise is fine, as long as it settles. A helpful guide is keeping pain at a level you would describe as no more than moderate while you exercise, and making sure your knee returns to its normal baseline within about 24 hours. If it is more swollen, warmer or noticeably more painful the next morning, that is a sign you did a little too much, so ease back next time and progress more gradually. Sore but settling is fine. Sharp, sudden or lasting pain is your cue to stop and reassess.

Beyond exercise: everyday load management

Small daily habits take pressure off an arthritic knee and make your exercises more effective. Keeping to a healthy weight makes a real difference, as body weight is felt several times over through the knee when you walk. Supportive, cushioned footwear helps, and many people find a walking stick or a few aids around the home reduce load on a bad day. Warmth before activity and after a busy day can ease stiffness. If stairs, getting off the couch or managing the shower are a daily struggle, an in-home assessment can sort out simple aids and setups that make life easier.

When to seek help from a physiotherapist or GP

Home exercise suits most people with knee OA, but it is worth getting professional input if any of the following apply:

• Your knee pain is not improving after several weeks of consistent, sensible exercise, or it is steadily getting worse.
• The knee frequently gives way, locks, or feels unstable when you walk.
• You are unsure which exercises are safe for you, or you have other health conditions that make exercising confidently harder.
• Pain is significantly limiting your walking, sleep or independence at home.

Seek urgent medical care or call 000 if you have sudden, severe knee pain, a knee that is hot, red and swollen with a fever (which can signal infection), or a knee injury after a fall that leaves you unable to bear weight. These need prompt assessment rather than home exercises. For advice specific to your knee, see your GP or book an assessment with a physiotherapist.

A physiotherapist can help work out what is going on, tailor a program to your knee, and progress it safely so you keep improving. Because we come to you, there is no clinic to get to and we can see exactly how you move in your own home. Depending on your situation, in-home physiotherapy may be funded through the NDIS, a Home Care Package, Support at Home, DVA, Medicare care plans or privately. You can see how it works on our funding and pricing page.

Frequently asked questions

Will exercising my knee make the osteoarthritis worse?

For most people, no. This is a common fear, but appropriate exercise is one of the most effective treatments for knee OA and is not shown to wear the joint out. Strengthening the muscles around the knee helps protect the joint and can reduce pain over time. The goal is sensible, progressive loading rather than avoiding movement. If you are unsure what is safe for you, a physiotherapist can guide you.

How long until home exercises reduce my knee pain?

Building muscle strength takes time, so many people find they need to stay consistent for several weeks to a few months before they notice a clear difference in pain and function. Small gains in comfort and confidence often come sooner. Those who benefit most tend to keep going rather than stopping the moment they feel a little better.

Should I stop exercising when my knee flares up?

Usually not completely. During a flare it is often better to reduce the amount or intensity rather than stop altogether. Gentle range-of-movement and lighter strengthening keep the joint moving and help prevent muscle loss. If a flare is severe or does not settle within a few days, check in with a physiotherapist or your GP.

Do I need a referral to see a physiotherapist for my knee?

Not for private care, so you can book directly. If you are using funding such as a Medicare care plan or DVA, or coordinating through a package, a referral or plan may be involved. We are happy to talk you through what applies to your situation before your first visit.

Ready to move with more confidence?

You do not have to work out the right exercises alone. Our physiotherapists come to you across Melbourne and the Geelong region, assess your knee in your own home, and build a program you can genuinely stick with. Book an in-home assessment or phone our friendly team today, and take the first step towards stronger, more comfortable knees.

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