Knee Pain and Exercise: What the Evidence Really Says
If you've had a knee scan and been told there's "wear and tear," you've probably assumed that means exercise is off the table until it's fixed. That's an understandable read of a scan report but it doesn't match what the evidence says.
Recent research confirms something that surprises a lot of patients: how your knee looks on a scan tells you very little about how much you'll benefit from exercise. Whether your knee looks pristine or shows significant changes, the evidence says you're likely to get a similar amount of benefit from the right exercise program.
That's good news. It also means the usual advice — "rest it until it feels better" — isn't just outdated, it can actively slow you down.
Exercise is still the first-line treatment, and here's why
For most people with knee pain, exercise therapy remains the most effective, safest first-line option. Not because it's the only option, but because nothing else comes close on the combination of safety, evidence, and whole-body benefit.
The effect on pain itself can be modest, and it varies from person to person. But exercise doesn't just work on your knee. It works on your cardiovascular system, your metabolic health, your cognitive function, and your risk of falls as you get older. You're not just treating a joint. You're investing in the whole system that joint sits inside.
Interestingly, the type of exercise you choose doesn't seem to matter much for pain outcomes. Aerobic exercise has shown the highest probability of improving pain, but the differences between exercise types are still small. In other words: the best exercise for your knee is largely the one you'll actually do (which is often the one that you enjoy the most)
Your scan doesn't decide your outcome
This is the part patients find hardest to believe. Current evidence shows no meaningful difference in how much people benefit from exercise based on the severity of changes on their scan, their weight, or other health conditions they're managing. Irrespective of what your scan shows, you're likely to get a similar amount of benefit as someone with a less severe-looking knee.
If anything, people who start with more pain tend to see larger improvements — because there's simply more room to improve. And people with a shorter history of symptoms may see a greater reduction in pain than those who've been dealing with it for years.
What actually helps you stick with it
Knowing that exercise helps and actually doing it consistently are two very different things. Knowledge alone doesn't reliably change behaviour — which is exactly why so many people start a home exercise program with good intentions and quietly stop within a few weeks.
Starting with what you already believe and want to know
Programs work better when they start from your existing beliefs and questions, rather than a generic handout. If you don't buy into why you're doing something, you won't keep doing it.
2. Feedback, not just instructions
Supervised exercise — where someone can check your technique and adjust the plan — builds confidence in a way that a sheet of exercises can't. Being asked to explain the plan back in your own words has also been shown to improve both understanding and outcomes.
3. A realistic, rehearsed plan
The programs that stick are the ones that account for your actual day — when you'll do it, how it fits around work and family, and whether you've genuinely agreed to it rather than just nodded along. Some people need to start more gradually and build from there, with a longer-term plan rather than a quick fix.
A temporary flare doesn't mean it's not working
Roughly 1 in 6 people will experience a temporary flare-up of pain that settles on its own. If this happens to you, it doesn't necessarily mean the exercise is wrong for you — it's a recognised part of the process for some people.
A simple traffic-light approach to pain can help here: green, you're fine to continue as planned; amber, ease back slightly but keep going; red, it's worth checking in with your practitioner. Having this kind of framework upfront — before a flare happens — makes it much less alarming if and when it does.
Telehealth and stepped care
If getting into a clinic regularly is a barrier, it's worth knowing that telehealth-delivered exercise programs have shown to be just as effective as in-person supervision for many people — and patients often prefer it. Research has also found that supervised in-clinic physical therapy didn't produce additional meaningful benefit over a well-designed home program at three months for some presentations.
Individualising your program might mean that some patients benefit from intensive Clinical Exercise classes and 1:1 appointments where hands on treatment and supervised exercise occurs, and others might be happy to follow a home program and check in via telehealth appointments as needed.
What this means for you
If you've been putting off exercise because of what a scan said, or because you tried a generic program once and it didn't stick, the evidence suggests the problem probably wasn't the exercise itself — it was the plan around it. A program built around your goals, your beliefs, and your actual daily life looks very different to a printed handout.
We're here to help you build that plan, explain what's actually going on in your knee, and check in with you as you go — whether that's in person or via telehealth.
Ready to get started? Book an appointment with our team to talk through your knee pain and build a plan that fits your life.
References
Holden MA, Hattle M, Runhaar J, et al. Moderators of the effect of therapeutic exercise for knee and hip osteoarthritis: a systematic review and individual participant data meta-analysis. Lancet Rheumatology. 2024. PubMed
Efficacy of aerobic exercises for knee osteoarthritis: a network meta-analysis of randomized clinical trials. 2026. PubMed
American Academy of Orthopaedic Surgeons. Management of Osteoarthritis of the Knee (Non-Arthroplasty), Evidence-Based Clinical Practice Guideline. AAOS PDF
Bedson J, Croft PR. The discordance between clinical and radiographic knee osteoarthritis: a systematic search and summary of the literature. BMC Musculoskeletal Disorders. 2008. PubMed
Barton CJ, Pazzinatto MF, Perraton Z, Crossley KM, Russell T, Dundules K, De Oliveira Silva D, Kemp JL. Telehealth-delivered group-based exercise therapy and education for knee osteoarthritis: a non-inferiority randomised clinical trial disrupted by COVID-19. 2026. DOI
Deyle GD, et al. Physical therapy treatment effectiveness for osteoarthritis of the knee: a randomized comparison of supervised clinical exercise and manual therapy procedures versus a home exercise program. Physical Therapy. 2005. PubMed
Kent P, Haines T, O'Sullivan P, et al. Cognitive functional therapy with or without movement sensor biofeedback versus usual care for chronic, disabling low back pain (RESTORE): a randomised, controlled, three-arm, parallel group, phase 3, clinical trial. The Lancet. 2023. PubMed