Patients suffering from lumbar disc herniation are not recommended to do sit-ups, lumbar disc herniation is because the cushion between the vertebrae plays a buffer role, called the intervertebral disc, surrounded by a fiber ring to play a protective role, because of a variety of reasons the fiber ring rupture, lumbar intervertebral discs protruded outside the protection of the ring of fibers, the formation of such a problem. When doing sit-ups, the human spine, including the lumbar spine, will form a large dynamic bending, this time the intervertebral space will also bear more pressure, for the corresponding pressure on the intervertebral discs will increase, may cause lumbar disc herniation on the basis of the original will increase the degree of lumbar disc herniation, caused by the patient’s lumbar pain, sciatica, aggravation of the symptoms. And now as a fitness point of view, most practitioners do not recommend patients to sit up this way to exercise, so patients with lumbar disc herniation is not recommended to do sit-ups.