Four abilities come together in a brief moment
In a split leap, you open your legs in the air into a split-like line. Unlike on the floor, there is no surface supporting your position. The legs open within a limited flight time, and you need to move out of the position again in time. That is why the figure cannot be reduced to having especially flexible legs.
The prerequisites need to work together, not just be present individually. Flexibility allows the required range of motion. Active leg control lets you access that range through your own muscle effort. Takeoff power helps lift your body off the floor. Core control connects the leg movement with a controlled body position. The landing, in turn, requires you to absorb the impact in a controlled way and regain your balance.
These abilities can develop to different degrees. You may be very flexible and still not be able to control your legs sufficiently. Conversely, you may be able to jump powerfully without reaching the desired leg line with confidence. The guide to flexibility through dance explains the general connection. With a split leap, it also matters whether you can control your available range of motion under dynamic load. That is a different task from holding a position on the floor.



