This workout is focused on Power! The first working block focuses on acceleration (i.e. "rapid change in inertia"), and the second working block focuses on deceleration or "putting the brakes on". Both skills are paramount for ringette and hockey athletes.
Acceleration allows you to create or move into open space.
Deceleration allows you to stop quicker - and the athlete who can stop quicker also has the potential to change direction faster - either to stay with the play, deke a defender, or to create open space.