Legs run the six meridians of human body, namely, liver, gallbladder, spleen, kidney, bladder and stomach. The function of lacing is to remove the rubbish in these meridians, thus playing a role in strengthening the body. "Pulling three meridians" means pulling the liver, spleen and kidney meridians of the legs. These three meridians are transparent, and the other meridians complement each other and naturally communicate with each other. When pulling the third meridian, the legs are lifted into the air and pulled apart by the lacing belt. Due to gravity, qi and blood are infused into the waist, abdomen, chest and head, and nutrients are sent to every cell in the body. At the same time, the meridians of the legs are opened, qi and blood enter the meridians, the focus is impacted, and the toxin is removed and blood stasis is removed. One action has multiple fitness effects. Therefore, "La San Jing" has an extraordinary fitness effect. For thousands of years, the "pull three classics" have stiff shoulders and necks, and the shoulders can't even lift the top of the head? Bend down to pick up something and suddenly flash? Sitting in front of the computer all day, my legs are swollen, and even my shoes feel a little crowded? These are all the results of the body being too stiff and the meridians being blocked. When you continue to practice yoga, your body will change with the rising of the sun and the setting of the moon, just like the willow branches swept by the spring breeze become flexible day by day, which will not only bring the above symptoms to subside, but also bring your mood and psychology ... In fact, your whole person will be brand-new. Lie prone on the mat, bend your knees, grab your feet backwards with your hands and arms, and breathe quietly for 2-3 times; Lift your knees off the ground, pull your legs up with your arms, and at the same time drive your chest off the ground, raise your head and lean back, so that only your abdomen can support your weight; Hold the posture for about 20 seconds, return to the initial prone position, relax, and then do it three times.