SBM faithfully follows the basics of exercise

Do you understand that the knee angles are different？

 SBM faithfully follows the basics of exercise.

The knee angle is 90 degrees. Not even at 70 degrees or 100 degrees can the twist be done correctly.

Bring the knees together and swing them shoulder-width apart

SBM 忠实地遵循运动的基本原则。

膝盖的角度是90度。 即使是70度或100度，也无法正确完成扭转。

将膝盖贴合在一起，摆动到肩膀宽度