Fig. 4
Intensity of NMES required for muscle contraction for the different electrode sizes (2 × 2 cm, 5 × 5 cm and 5 × 9 cm) on the quadriceps, hamstrings and gluteus. Intensity describes the total intensity (mA) and current–density describes the intensity/area (mA/cm2) needed for muscle contraction for each electrode size. P values calculated with Willcoxin sign rank test, significant values are bold. x = outlier (5.4) outside of the diagram