sentences:  Indeed, Davydova advanced the difficulty of gymnastics through the introduction of her moves, and is one of a select few to have introduced a new move and/or trend on each piece of apparatus.Davydova was the first female gymnast to perform an Arabian 1¾ somersault, and a piked Arabian 1¾ somersault on floor (both Arabian 1¾ moves removed from the code of points for female gymnasts by the FIG in 1993 for safety reasons, effectively banned because of their danger and difficulty.Vault