– A 2025 systematic review and meta-analysis of 23 randomized trials (n≈1,265 for PA outcomes) shows physical activity (PA) interventions after total knee or hip arthroplasty modestly increase overall PA (SMD 0.16, 95% CI 0.01–0.30; high certainty).
– Effects were seen for step counts (SMD 0.22, 95% CI 0.05–0.40) but not for moderate-to-vigorous physical activity (MVPA; SMD −0.01, 95% CI −0.33 to 0.30).
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