它分直向和侧拉两个部分，在直向拉伸部分：以固定髋关节和脚型来加强训练者的动作准确性和着重于力度的训练及强迫性训练。
It can perform straight side stretches. Straight stretch: to strength trainee's action accurate by fixing coax and foot. Main for the dynamics and force training.
它分直向和侧拉两个部分，在直向拉伸部分：以固定髋关节和脚型来加强训练者的动作准确性和着重于力度的训练及强迫性训练。
It can perform straight side stretches. Straight stretch: to strength trainee's action accurate by fixing coax and foot. Main for the dynamics and force training.
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