The Cohen's <i>d</i> effect sizes for differences between pairs of signals representing the given deteriorations of postural control quality.

Abbreviation's description—see "Table 1". Velocity and acceleration of CoPM in the ZC points for lateral direction possess a better ability to detect the postural control deteriorations than the standard parameters: standard deviation of the signal (LS) and area of the ellipse (LE) covering 90% of the 2D signal envelope. The strongest significances in each column are marked in bold.