Soccer kick kinetic link from an elite male collegiate player.
Sequence: Pelvis rotates rapidly in a counter clockwise direction, just
after plant leg contact with ground. Pelvis then quickly decelerates
as the kick leg hip rapidly flexes, resulting in knee flexion, loading
the quad (stretch-shorten, active eccentric load). Just before the foot
strikes the ball, hip flexion decelerates, facilitating a ballistic
knee extension of the kick leg.
3D animation of the soccer kick kinetic link:
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