Players will jump as high as the can on 1 leg, after they land they will bend down touching the floor, with the non jumping leg being extended behind.
Once they player is in that position they will explode up and jump off that leg again.
Players will continue to jump on the same leg for 30 seconds which is when they will switch legs.
Rebounding is the least glamorous thing in basketball and one of the most decisive. It is also almost entirely a habit, which means it is entirely coachable.
Good spacing is only the start. The best modern offences teach players to attack the defence's rotations and play in a permanent 4-on-3 - here is how to coach that read.
The ball screen produces almost half of all professional offensive possessions, yet most teams still teach it as a memorised play. The modern approach trains the read - giving players a framework to decide based on what the defence does, not what the coach called.