What is the evidence for exercise in knee osteoarthritis?

What is the evidence for exercise in knee osteoarthritis?

• A. There is strong evidence to support the use of exercise in knee OA
• B. There is weak evidence to support the use of exercise in knee OA
• C. There is no evidence regarding exercise for knee OA
• D. The evidence is inconclusive regarding exercise in knee OA

Answer: (A)

Exercising for knee osteoarthritis consistently reduces pain and improves function, with benefits seen across many studies and patient groups. The main reason is that regular exercise strengthens the muscles around the knee—especially the quadriceps—which helps stabilize the joint, improves gait, and reduces mechanical stress on the worn surfaces. Aerobic plus resistance training, even at moderate intensity, has been shown in numerous randomized trials and meta-analyses to produce clinically meaningful improvements in pain and function, with effects that are sustained when the activity is continued. The safety profile is favorable, with adverse events typically mild and rare, making exercise a preferred nonpharmacologic option. Guidelines from major OA organizations repeatedly designate exercise as a first-line treatment, reinforcing that the overall evidence base is strong.

Exercising for knee osteoarthritis consistently reduces pain and improves function, with benefits seen across many studies and patient groups. The main reason is that regular exercise strengthens the muscles around the knee—especially the quadriceps—which helps stabilize the joint, improves gait, and reduces mechanical stress on the worn surfaces. Aerobic plus resistance training, even at moderate intensity, has been shown in numerous randomized trials and meta-analyses to produce clinically meaningful improvements in pain and function, with effects that are sustained when the activity is continued. The safety profile is favorable, with adverse events typically mild and rare, making exercise a preferred nonpharmacologic option. Guidelines from major OA organizations repeatedly designate exercise as a first-line treatment, reinforcing that the overall evidence base is strong.