If you have knee arthritis, one worry comes up more than any other: won’t exercise just wear my knee out faster? The good news is that safe exercise for knee arthritis is not only possible, it is the care Australian guidelines recommend first.
It’s a fair question. When a joint is sore, resting it feels like the sensible thing to do. But for knee osteoarthritis, the evidence points the other way. Done properly, exercise is one of the safest and most effective things you can do for a painful knee.
What the guidelines actually say
Australian clinical guidelines, including the RACGP guideline for knee osteoarthritis, recommend exercise as first-line care. Not as a last resort, and not as an alternative to “real” treatment. Exercise and strengthening sit right at the top of the list, alongside staying at a healthy weight.
That recommendation isn’t based on one study. It reflects a large body of research and public-health guidance showing that the right exercise can reduce pain, improve how well the knee moves, and help people stay active and independent.
Why exercise for knee arthritis helps rather than harms
It feels counterintuitive, so it’s worth explaining why.
- Your joint is built to move. Gentle, regular loading helps keep the cartilage and surrounding tissues healthy. Long periods of rest tend to leave a knee stiffer and weaker, not better.
- Strong muscles take the load off. The muscles around your knee and hip act like shock absorbers. When they’re stronger, less strain goes through the joint itself, so day-to-day activities hurt less.
- Confidence comes back. Many people slowly stop doing the things they enjoy because they’re afraid of pain. A structured program rebuilds both strength and confidence, so stairs, walks and the garden feel manageable again.
“But it hurts when I move”
Some discomfort during and after exercise can be normal, and it doesn’t mean you’re causing damage. A useful rule of thumb is the difference between hurt and harm:
- Mild, familiar aching that settles within a day or so is usually fine.
- Sharp pain, or pain that keeps building and lingers, is a signal to adjust.
This is exactly where guidance matters. The goal isn’t to push through pain, and it isn’t to avoid movement altogether. It’s to find the right amount, and to build it up gradually.
Not all exercise is equal
“Just go for a walk” or “try the gym” is well-meaning advice, but it isn’t a plan. The safest results come from exercise that is:
- Assessed first, so it suits your knee, your strength and your goals.
- Progressed gradually, so load increases at a pace your knee can handle.
- Supervised and adjusted, so it changes as you improve.
That’s the difference between guessing and a guided program.
How we help at Tensegrity
Our No Gap Strong Knees Program is a 12-week, one-on-one physiotherapy program built around exactly this evidence, so your exercise for knee arthritis is safe, guided and progressed at your pace. Your physiotherapist assesses your knee, builds a plan for you, and adjusts it each week based on how you respond. No referral is needed to start, and ongoing sessions are $35, which for most private health fund members means little to no out-of-pocket cost.*
If your knee has been sore for more than three months, or a scan has mentioned “wear and tear”, it’s worth having it properly assessed. The earlier you start, the more options you have.
Ready to get your knees moving?
Book your initial assessment with our physiotherapist, or call (02) 8964 6698.
This article is general information and is not a substitute for individual advice. Everyone’s knee is different, so speak with your physiotherapist or GP about what’s right for you.
*Gap-free or fully covered subsequent sessions depend on your individual private health insurance policy. Check with your health fund using HICAPS item codes 500 and 505 before starting.