[quote=Mr Allen J]
Schradinger, how did Paige jump out the window without suffering one injury...?
[/quote]

Parkour training combined with the mild physical boost of her absorbed energy and redirection of downward momentum into a forward roll. That and the grass. If it was concrete, it would have been a different story.

EDIT: Just to be clear, the redirection of momentum wasn't a use of her power, just good parkour technique.