Figure 1.

A single trial of isometric knee-extension torque data that includes the superimposed-burst procedure. Arrows represent torque onset, peak torque, and superimposed burst torque. Rate of torque development and time to peak torque were calculated on the curve bounded by torque onset and peak torque. Succeeding the maximal torque value, indicated by the second arrow, was the superimposed-burst torque indicating involuntary maximal torque.