Use equipment to stretch and lengthen the contracted or contracted soft tissue, and perform movements that slightly exceed the resistance of the tissue and the range of motion of the joint, so that the soft tissue around the joint can regain extensibility, reduce muscle tension, and improve or restore the range of motion of the joint.
Stretching training is mainly aimed at conditioning and improving the fascia. Stretching training benefits from the ancient health care concept of "one inch of tendon lengthening and ten years of life extension". Properly stretching the body can help to clear the meridians, promote the circulation of Qi and blood, and adjust the balance of Yin and Yang of the viscera. Lajin softens the tendons and resets the dislocation on the spine, so that "the bones are straightened and the tendons are soft, and the qi and blood flow spontaneously", so the pain, numbness, swelling and other symptoms of the waist, knees, limbs and other parts of the body are eliminated and alleviated.