Figure 6. Examples of electromyographic (EMG, measured in microvolts), mechanomyographic (MMG, measured in millivolts), and isokinetic torque (measured in Newton-meters) signals measured simultaneously from the vastus lateralis (VL) and rectus femoris (RF) muscles during a maximal concentric isokinetic leg extension at 60°·s⁻¹.

For this example, the duration of the isokinetic contraction was 1.5 seconds; therefore, the shaded area represents the signal epochs used for analysis