Walker was in control every step of the way.

沃克对每一步都尽在掌握。

So the arm is long, so the abs stay engaged, then when she steps through that makes sure she's stepping controlled and not arching her back through the movement.

胳膊伸长，腹部做好准备，当她跨步时，要保证每一步都是有控制的，训练时不要弓背。