Knife method, also known as knife skill, evolved from the ancient method Yijinjing. "Easy tendon" is to turn weak tendons into strong tendons, so that sick people can recover slowly, and people without diseases are strong. The skill of throwing hands can activate 12 tendons of fingers, palms, wrists, toes, heels and knees, so that qi and blood can run well.
The cutting action is simple. Stand up straight, with your legs shoulder-width apart and your feet firmly. Then, swing your arm back and forth in the same direction, and use some force when throwing it back. The trick is to throw them forward with three components and backward with seven components. Relax naturally when practicing, not too fast.