[[R11]] Indications: Rheumatism in the legs, knees, waist and thighs, dry throat, wheezing and coughing, distension in the lower abdomen, hemiplegia, forgetfulness, rectal prolapse, weak wrists, mood swings, etc. Exercise method: Between 1 a.m. and 5 a.m. every day, place both hands behind your back on the ground, with the fingertips pointing backward. Keep your arms straight, extend your left leg forward with your heel touching the ground, fold your right leg to press your thigh against your calf, keep your eyes on your toes, and shift your body's center of gravity backward and then forward. Swap your feet in this way, with the same movements, and do each fifteen times. Finally, perform teeth clenching, saliva swallowing, and breathing exercises to conclude the practice.