Functional exercise is a long-term limb and trunk exercise that patients need to adhere to, and is an important part of rehabilitation treatment. Regardless of the occupation of the disc herniation patients, after receiving minimally invasive treatment should pay attention to arrange a certain amount of time for independent exercise, especially the lumbar back muscle exercise is more important, developed lumbar back muscle is not only conducive to symptomatic improvement, but also conducive to better maintain the stability of the spine, to prevent the recurrence of disc herniation or its segmental disc herniation. The method of functional exercise should vary from person to person, from time to time, and from place to place. According to the severity of the symptoms, priority and speed of flexible choice, do not have to force all. A, the basic principles of functional exercise (1) according to age, physical fitness, disease and treatment received, choose the appropriate exercise time, exercise methods, exercise volume and intensity. (2) The action is in line with the scientific exercise requirements, not arbitrary, blind brute force. (3) Gradual and orderly, not in a hurry to achieve. (4) perseverance, not halfway. Functional exercise for patients with lumbar disc herniation should be used flexibly according to the condition of each patient. Generally in the acute phase when the symptoms are heavy, there is no need to carry out functional exercise, in the subacute phase that should begin to exercise from a small amount of gradually increasing graded exercise, which can make the patient recover early. Functional exercise in the subacute stage should avoid aggravation of symptoms due to uneven force on the disc caused by substantial flexion or extension of the thoracolumbar spine. Intensive muscle training should be performed when entering the chronic phase or late recovery. However, when choosing the type of exercise should be combined with each person’s own situation, such as the lumbar spine is flat, lumbar muscles are weaker than the abdominal muscles, should focus on “spinal extension training”; such as lumbar convexity is larger, the abdominal muscles are relatively weak, should focus on “abdominal muscle training”. For “lumbar spine mobility training”, the subacute stage is carried out in a relaxed swinging manner, and the amplitude of movement can be small, so as not to aggravate the pain; the chronic stage and the late recovery stage can move to the maximum in each direction, so as to gradually restore the normal range of activity, and also to not significantly aggravate the pain. The specific methods of the three types of functional exercises can be carried out according to the following diagrams: (a) stretching training of the spine 1, subacute training method is divided into prone leg lift (Figure 20-1), prone head lift (Figure 20-2), padded pelvis lift the upper body to the horizontal position (Figure 20-3). 2. Chronic and late recovery training methods include chest raising (Figure 20-4), half bridge (Figure 20-5), bridge (Figure 20-6), and swallow (Figure 20-7). (B) abdominal muscle training 1, subacute period training method prone position abdominal muscle active contraction (Figure 20 -8), supine position head lift (Figure 20 -9), supine position both legs lift off the bed (Figure 20 -10). 2. In the chronic phase and late recovery, the legs can be pulled toward the armpits (Figure 20 – 11), touching the toes (Figure 20 – 12), supine sit-ups (Figure 20 – 13), supine lumbar forceful upward arching (Figure 20 – 14), squatting and standing with the lumbar spine slightly flexed and both hands immobile (Figure 20 – 15). Figure 20-1 to Figure 20-15 above each action shown in 6-10 seconds, repeat 6-20 times, the number of repetitions should be small at the beginning, and then gradually increase as appropriate. (C) lumbar spine mobility training See Figure 20-16. The first section of flexion and extension exercises: hands forked waist, first arch behind the chest, arching the back when the two elbows forward, chest elbows backward. The second section: forked waist, the left hand through the front, side to side back oblique up, eye left hand to the left waist, restore, both sides of the rotation Section 3 side bending exercise: two hands forked waist; bend to the left, the left hand vertical down right hand along the chest wall upward slide, restore, both sides of the rotation. Section IV knee hugging: both hands side planks, palms upward to hold the waist, bend over and hug the left calf and pull it toward the chest, restore, rotate on both sides. Section 5: bend and turn: both hands side to side, legs straight and separate, bend over to touch the left foot with the right hand, the left hand right up, restore, alternate sides. Section 6 grinding waist: hands crossed, 1, 2, 3, 4 in turn to the left, back, right, front bending, 5, 6, 7, 8, the opposite direction.