system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does rolling reduce falling pain especially in parkour?
gpt
Rather than absorbing the landing through the legs, rolling can dissipate that energy throughout your entire body. Instead of catching yourself and absorbing all your momentum in your ankles and knees, you roll, absorbing some through your legs, some through your shoulder, side, arm, etc.

It also helps maintain momentum, rather tan absorbing it all. You translate the downward momentum of a fall into forward momentum. This means you aren't putting as much stress on your joints, and you don't have to work as hard to move quickly.