The Most Important Key Point to the Correct Posture of Zhan Zhuang Exercise

The hips should be rolled slightly forward to straighten your lower back. Roll your hips slightly forward as if you were sitting at the edge of a high stool. This makes it possible to relax the lower back muscles and the chi to flow freely. This also guarantees the optimal stretching of legs which are given the task to produce bio-electricity. It is important to place your tongue gently on your palate. It is also very important that knees should not go beyond the toes. Look carefully at the green line where the weight should be in the middle of the foots. The shoulders should be dropped and hands can be kept a little higher like here in this post.

The second picture is the correct one!