Walking and tai chi ease knee osteoarthritis pain

Knee osteoarthritis is one of the biggest drivers of pain and lost mobility in middle and later life, and the drug options come with side effects while doing little for function. Exercise is widely recommended, yet many people fear that loading a sore knee will accelerate the damage, so they move less. It is also unclear whether traditional low-intensity practices such as Baduanjin and tai chi offer anything beyond simply walking more. Community health programmes need options that are cheap, safe and scalable, which is exactly what this review set out to weigh up.

The authors ran a systematic review and meta-analysis, searching PubMed, Web of Science, EBSCOhost and Google Scholar for relevant articles published between 2003 and 2023 and following PRISMA reporting criteria. Twenty-four studies met the inclusion requirements, with a combined sample of 1,972 participants, 71.46% of them female. Interventions were grouped into four low-intensity categories: Baduanjin, tai chi, walking and general physical activity. Study quality was appraised with the Cochrane Collaboration's risk-of-bias tool, and the pooled outcomes were pain, stiffness and physical function in middle and late adulthood.

Pain reduction was the headline result, with a moderately significant pooled effect size of d = -0.65 (SE = 0.14, p < .001), and every intervention type — Baduanjin, general physical activity, tai chi and walking — significantly lowered pain on its own. Stiffness improved with a moderate effect size of d = -0.71 (SE = 0.17, p < .001). Physical function also improved significantly, at d = -0.58 (SE = 0.15, p < .001). The review reports benefits across the board rather than a single standout technique, so no modality was crowned the winner.

This supports the existing position that movement is a first-line, non-drug approach for knee osteoarthritis symptoms, and it extends that evidence to structured Asian exercise techniques rather than just conventional exercise therapy. Because all four categories worked, the finding fits a pattern in which regular low-intensity loading matters more than the specific style chosen. Open questions remain around the ideal dose, session frequency and how long benefits persist once a programme ends. Head-to-head comparisons and lower-risk-of-bias trials would be needed to say whether Baduanjin or tai chi genuinely outperforms walking.

If you have knee osteoarthritis symptoms, this is a reason to think that low-intensity, low-cost movement is a credible route to less pain and stiffness and better function, rather than something to avoid. It also suggests the choice between walking, tai chi and Baduanjin can reasonably come down to what you will actually keep doing, since all of them reduced pain in the pooled analysis. The improvements were moderate, not curative, and were measured over the timeframes of the original trials. Anyone with significant joint disease is still best guided by their own clinician.