Figure 4. Diagram of pelvis, hip and knee angular velocities during leg lowering period of a jumping front leg axe-kick. Knee flexion angular velocity meets its maximum at 101% normalized time. As the value at 100% is the maximum within the range [T1, 100%], TVKmax is assigned 100% normalized time. In this case, the technique shows proximal-to-distal sequencing in the leg lowering period.