The action points of the chest and knee position are as follows: 1, the patient should first find a softer mattress or lay more layers of bedding on the bed, because when doing this position, the knee joint may be more strongly squeezed. The patient should then change into particularly loose and soft clothing, especially in the waist and abdomen without restraints. 2. The patient should first kneel down on the bed, keeping the knee joint flexed at 90°, with the thighs perpendicular to the ground at this time. After that, the patient’s upper body should naturally and slowly fall forward, holding the weight slightly with the forearms, while the head is tilted to the side, maintaining a prone sleeping position, but the hips must be lifted straight. Ultimately, the patient needs to keep the knees flexed at 90°, the hip area at approximately 40-60°, and the upper body in a downward arching position. The patient must keep the upper body relaxed and the hips tense while in this position. It is also important to note that this position may take a relatively long time to perform, about 15-20 minutes. During this time, if the patient feels tired, he can tilt his head to the other side or relax his shoulders and neck, but the position of the lower back and abdomen must be maintained.