Effects of spinal cord transcutaneous stimulation priming on single-leg balance control

Figure 3 Group data of trial duration and center of pressure displacement. A: Trial duration (seconds) for single-leg stance attempts with eyes open and eyes closed, before and after the priming protocol with spinal cord transcutaneous stimulation (scTS) or sham stimulation (sham; P < 0.05); B: Center of pressure displacement in the anterior-posterior direction (P < 0.01), medio-lateral direction (P < 0.001), and composite total displacement (quantified as root mean square; P < 0.001) for single-leg stance attempts with eyes open and eyes closed, before and after the priming protocol with spinal cord transcutaneous stimulation or sham. Results are described as individual data points (solid black triangles: ScTS, eyes open; solid grey circles: Sham, eyes open; empty black triangles: ScTS, eyes closed; empty grey circles: Sham, eyes closed) as well as mean and standard deviation. Significant difference by Bonferroni post hoc test: ^aP < 0.05; ^bP < 0.01. scTS: Spinal cord transcutaneous stimulation; Sham: Sham stimulation; AP: Anterior-posterior; ML: Medio-lateral; COP: Center of pressure.