單膝跪與走步 - 籃球

先貼可能有關的規則(比賽是用FIBA 2014的規則)
25.2.3. A player falling, lying or sitting on the floor:
*It is legal when a player falls and slides on the floor
while holding the ball or, while lying or sitting on
the floor, gains control of the ball.
*It is a violation if the player then rolls or attempts to
stand up while holding the ball.

比賽時左腳單膝跪地取得進攻籃板球
右腳不移動站起直接起跳投籃
這樣是否算是走步?

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