Figure 3From: Electrical muscle stimulation preserves the muscle mass of critically ill patients: a randomized study(a) Absolute difference (cm) and (b) relative difference (%) in cross sectional diameter (CSD) of left rectus femoris and vastus intermedius in the control (n = 13) and EMS (n = 13) groups (mean ± standard deviation). *significant between-group difference (P < 0.05). EMS = electrical muscle stimulation.Back to article page