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. 2014 Feb 26;9(2):e89905. doi: 10.1371/journal.pone.0089905

Figure 2. Group mean data of balance performance.

Figure 2

Mean centre of pressure (COP) displacement over three trials before (pre) and after (post) the intervention (marked as ▪) from each single subject in the whole body vibration training group (VIB) and the equivalent training group (CON) as well as the mean of all subjects (marked as Δ). Values obtained after training are expressed as percentages of the baseline value. The CON group showed no changes, whereas in VIB group the COP displacement was significantly reduced.