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Table 1 Mean differences in COP parameters between different lateral wedges conditions and no- wedge condition

From: Effects of laterally wedged insoles on static balance in patients with medial compartment knee osteoarthritis

  Lateral Wedge conditions
  8.5 ° Heel wedge (Insole) 8.5 ° Heel & Forefoot wedge (Insole) 8.5 ° Heel wedge (shoe sole) 8.5 ° Heel & forefoot wedge (shoe sole)
Total Mean distance (mm) -0.036 -0.83 -0.98 -1.21
Mean COP velocity(mm/sec) 5.89 -1.27 -1.19 -0.35
95% confidence circle area (mm 2 ) -48.09 -205.79 -249.25 -286.52
95% confidence ellipse area (mm 2 ) -30.04 -137.42 -219.95 -216.13