Crawling in situ is a kind of fitness exercise. The torso leans forward, the arms support the yoga mat, and the body is inverted V-shaped.
Climb forward with your hands in turn until your hands are directly under your head and your torso is parallel to the ground. After a short pause, you can get up in the same way and try to keep your back straight. Breathe naturally. With the increase of crawling times, my shoulders feel sore.
Error: The elbow joint overstretched and locked during crawling. Solution: the elbow joint should be straight, but it should not be overstretched and locked. Pupils should stop appearing in time.