[Movement] Flank 1st part [Description] 
From the astride position, the legs are swung forward to create momentum, before swinging backward, and rolling onto the stomach with a straight body, with a full extension of the legs so that the vaulter nearly reaches a handstand. At the apex, the vaulter jackknifes her body and turns the body to the inside, before sliding down into a side seat. The vaulter is judged on form, landing, and elevation.