Fig. 4. Correlations between distortions of the semi-lunar processes and the velocity of tibial movements. Three tibial extensions of different velocities are plotted. Extension 1, open circles; there was no distortion of the semi-lunar process and the tibial extension was slow. Kick 1, open triangles; there was a small distortion of the semi-lunar process and the resulting tibial extension was more rapid. Kick 2, filled squares; there was a large distortion of the semi-lunar process and the resulting tibial extension was even faster. The curves are aligned at the time (0 ms) when maximal tibial extension is achieved.
