For double somersaulting skills where gymnasts MIGHT under-rotate (e.g. Tsukahara, Yurchenko, double back, etc.) I’ll often count routines where gymnast “stand” (land on the feet) or “over-rotate”.
Over-rotating I call a “good mistake“. Under-rotating a BAD mistake. 😦
Those graphics come from Dave Tilley’s article on “anterior talocrural impingement”:
… Don’t let that term intimidate you, when broken down it’s not too bad.
“Anterior” means the front of the body, “talocrural” simply refers to the major ankle joint that allows the foot to move up and down, and “impingement” means that the joint or other tissue structures are being pushed on each other usually resulting in pain. So, pain in the front of the ankle that is felt when the bones or foot structures get pressed too hard on each other. …
Actually, you probably will be intimidated when you look at the full article. 🙂
Gymnastics Coaching.com 