[vault] The Tsukahara can refer to a specific vault and a family of vaults in artistic gymnastics. The first Tsukahara vault was performed by (and named after) Mitsuo Tsukahara in 1972. A Tsukahara vault consists of a half turn off the springboard onto the vault table, then a push backwards, usually into a back salto or layout. == Variation... Found on http://en.wikipedia.org/wiki/Tsukahara_(vault)
A vault family in which vaults start with a quarter-turn onto the vault, a push off the hands and a back salto before landing. Also, a full twisting double back on floor and a full twisting double flyaway off high bar. Named for Japanese gymnast Mitsuo Tsukahara. Found on https://www.nbcolympics.com/news/gymnastics-101-glossary