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Table 2 Comparison of COP data between the age groups

From: Is there a relationship between pain intensity and postural sway in patients with non-specific low back pain?

COP parameter Healthy controls
20-35 yrs (n = 36)
Healthy controls
36-50 yrs (n = 41)
Statistical difference
p-value
mVel ML (mm/s) 11.8 ± 2.5 12.0 ± 2.7 0.28
mVel AP (mm/s) 9.1 ± 2.7 9.5 ± 2.1 0.27
90% circle diameter (mm) 11.6 ± 2.8 12.0 ± 2.4 0.21
  1. Values are mean ± SD
  2. AP: antero-posterior, mVel: mean velocity, ML: medio-lateral