What is the meaning of forward-backward rolls in gymnastics?

Answer 1

I think you might be talking about a backwards roll which is basically a roll from crouching where you lean backwards onto your shoulder and your arms are straightened, and you end up standing.

Answer 2

A backward roll is a movement in gymnastics in which a person's body is rolled backwards by crouching on the ground and lifting one's legs complete over one's head and lifting the head at the end.

Answer 3

its another name for a somersault and a reverse somersault