Fig. 4
From: Changes in tibialis anterior architecture affect the amplitude of surface electromyograms
Effect of ankle position on bipolar M waves. Raw, bipolar M waves obtained for 50% (thick, grey traces) and 100% (thin, black traces) of the maximal stimulation amplitude are shown in a for a representative participant. From top to bottom, M waves were obtained with the foot at dorsiflexion, neutral and plantar flexion positions. b, shows mean and standard deviation (whiskers; N = 10 subjects) values for the peak-to-peak amplitude of bipolar M waves, with grey intensities indicating the three ankle positions tested: dorsiflexion (grey), neutral (light grey) and plantar flexion (dark grey). Values obtained for the 50% and 100% of the maximal stimulation intensity are shown from left to right. Asterisks denote statistical significance at P < 5%