This pillar of osteoarthritis treatment shows more modest results than expected

Long promoted as an almost flawless solution for joint pain, a major osteoarthritis treatment is now being judged against more sobering evidence.

For years, clinicians have recommended exercise as the safest and most straightforward way to manage osteoarthritis. Recent large-scale analyses continue to support it, yet the size of the benefit looks much smaller than many people have been encouraged to expect.

Exercise for osteoarthritis, once the obvious first-line answer

If your knees ache or your hips feel stiff, you have probably heard the familiar instruction: “You should move more.”

Exercise has always seemed to meet every requirement. It is inexpensive, broadly available, and avoids potent medicines or surgery. It can build muscle strength, preserve mobility, and simultaneously help with cardiovascular health and weight management.

Osteoarthritis-the most common type of arthritis-slowly wears away cartilage and frequently weakens the muscles around the joint. Pain often leads people to move less, which then worsens stiffness and reduces strength even further. Exercise appears to be an ideal way to interrupt this vicious cycle.

For years, international guidelines have placed exercise at the very centre of osteoarthritis care, ahead of pills and procedures.

Specialists across disciplines, from cardiology to rheumatology, have reinforced this message. More movement supports the heart and brain, improves sleep, helps balance, and protects independence in everyday activities. Because it seemed to help so many areas at once, exercise became the cornerstone therapy for joint disease.

What the new evidence actually shows

A major international review published in RMD Open has re-examined how well exercise works for osteoarthritis. The researchers combined five systematic reviews and 28 randomised clinical trials, tracking over 13,000 people with osteoarthritis affecting the knee, hip, hand, or ankle.

The central finding is clear: exercise is beneficial, but the improvement is not as large as many assume.

Knee osteoarthritis-by far the most extensively studied-showed short-term pain reduction with exercise. On the standard 0–100 pain scale, the average drop was about 10 points. In clinical practice, a change of roughly 10 points is typically viewed as the minimum difference most people can clearly notice in day-to-day life.

The average pain relief from exercise sits right at the threshold of what is considered just clinically meaningful – not a dramatic shift.

When the analysis focused on larger, better-designed trials or those that followed participants for longer, the apparent advantage decreased. Over extended follow-up, pain scores among people in exercise groups often ended up looking much like those who did not receive structured exercise programmes.

For hip osteoarthritis, the impact on pain was minimal, and in some trials it barely differed from no exercise intervention. For hand osteoarthritis, improvements were limited and frequently uncertain.

Function-such as walking, climbing stairs, or using the hands-also improved with exercise, but again only modestly. As with pain, these functional gains often lessened over time once organised programmes finished.

Why the data are less clear-cut than hoped

The new synthesis also underlines why interpreting the research is challenging. Trials vary greatly in:

• type of exercise (strength training, walking, cycling, tai chi, water-based sessions)
• intensity and frequency
• duration of the programme
• who is included (age, weight, disease severity, other conditions)

Many studies are small and run for only a short period. Some do not compare exercise properly against other established treatments. These limitations can make the benefits appear larger than they truly are.

As a result, while exercise clearly offers some help, the idea that it will “transform” osteoarthritis pain or postpone surgery for many years does not stand up strongly when examined closely.

Exercise versus other treatments: not the runaway winner

An important aspect of this new analysis is that it does not consider exercise in isolation. Instead, it sets exercise alongside other approaches commonly used for osteoarthritis management.

Across many trials, exercise performed roughly on par with painkillers, joint injections, manual therapy and patient education programmes.

This does not imply exercise is pointless; rather, it suggests exercise is not dramatically better than these alternatives for relieving symptoms.

In people with more advanced disease-particularly in the knee or hip-surgical options show clearer long-term advantages. Interventions such as osteotomy (bone realignment) or total joint replacement can produce bigger and longer-lasting improvements in pain and function for appropriately selected patients.

That comparison leads to an uncomfortable question: should exercise automatically be presented as the leading answer for every person with osteoarthritis, regardless of disease stage or what they expect it to achieve?

A shift toward tailored, shared decisions

Rheumatology is increasingly stepping away from one-size-fits-all advice, and the latest evidence strengthens the argument for personalised care.

Exercise still has important roles, including:

• preserving mobility and strength in early or moderate disease
• supporting weight management and cardiovascular health
• getting patients physically ready ahead of joint surgery (“prehabilitation”)
• helping mental health and improving sleep quality

However, the degree of pain relief from exercise varies widely. People with severe joint damage, marked deformity, or intense constant pain may experience little symptom improvement from exercise alone. For these individuals, more direct interventions may need to be considered sooner.

The new data push clinicians and patients to weigh exercise alongside, not above, other options – and to match the plan to the person, not the guideline.

This is where shared decision-making becomes essential. Patients bring their priorities: Are they determined to avoid surgery? Are they worried about medication side effects? Do they have enough time and energy for regular supervised sessions?

Clinicians bring what the evidence suggests: what each approach typically delivers, how long benefits tend to persist, and what risks may come with it.

What “modest” benefit feels like in real life

A 10-point shift on a 100-point pain scale can look unimpressive on paper. In everyday terms, it might mean walking for 15–20 minutes before needing a rest, rather than only 5–10. Pain may still be present, but reduced enough to make a shopping trip manageable or to play with grandchildren.

For some people, that improvement justifies the effort of regular exercise. For others-particularly if daily life remains heavily restricted-the change can feel disappointing and may prompt them to consider stronger treatments.

Combining strategies for additive effects

Osteoarthritis management rarely depends on just one measure. Exercise often works best when it is part of a broader plan, for example:

• structured exercise plus weight reduction in people with knee osteoarthritis and obesity
• exercise combined with simple pain relief before or after sessions to make movement tolerable
• exercise plus bracing or shoe inserts to improve joint alignment and reduce strain
• education programmes that teach pacing, joint protection and realistic expectations

Each element alone may only provide a modest improvement. When combined, their benefits can accumulate into a more noticeable change in pain, function, and quality of life.

Key terms that often confuse patients

Osteoarthritis is sometimes misunderstood as “wear and tear” that will inevitably get worse with any movement. The latest evidence argues against that fear. Although cartilage does not readily regrow, carefully controlled joint loading through well-designed exercise can support the tissues around the joint rather than wearing them down.

Another phrase that can mislead is “clinically meaningful”. Researchers use set thresholds to judge whether a score change is likely to matter in real life. A result may be statistically significant-unlikely to be due to chance-yet still feel underwhelming in everyday activities. This gap between numbers and lived experience sits at the centre of the current debate about exercise as a core part of osteoarthritis care.

At present, movement still belongs in the treatment plan, but it is more realistically viewed as one component among several, rather than the “magic bullet” it was once presented to be.