We as athletes often use our "core" in ways other than
the old fashioned sit up. Leif, Amy and Sloane are all
demonstrating movement that starts at their core and
travels to their extremities.
Notice the dramatic shift in the location of their hips.
The power generated through the hips is much
greater than the power genrerated by the extremities.
Being able to open the hip under load, stress,
and or fatigue while maintaining stability of the core
is an essential part of our development
as athletes.