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Change in knee pain during walking.a
Notes: aMean change in pain as measured on the visual analog scale (VAS) during treadmill walking and expressed relative to the patients’ baseline pain score (which was representative of zero). Over the four intervals, pain increased significantly in the full weight-bearing (FWB) condition (*P=0.002; 95% confidence interval 5.3–20.7) but not in the lower body positive pressure (LBPP) condition (P=0.58; 95% confidence interval −16.0–9.2).
