A step forward (or step taken) in sumo; advancing the foot—this step can be used to push the opponent or, at the edge of the ring, decide the outcome.
終盤の踏み出しで体勢が崩れ、相手に押し出された。
In the final stage his posture collapsed on a step and he was pushed out by his opponent.
踏み出しの瞬間に相手の差し手を切った。
At the moment of stepping forward, he cut off the opponent's grip.