In the rapidly developing digital era, the way of human life and work has changed. While more and more remote office and online services provide efficient and convenient experience, they also pose a health threat of sitting for a long time. One of the typical problems is "low back pain". According to statistics, more than 84% of people will have low back pain of different degrees in their lives. Although the reasons are complex, the most common one is pelvic forward tilt, also known as "lower cross syndrome". Women should pay special attention to it. Sitting and immobility can easily lead to the lower crossing syndrome. The lower crossing syndrome, also known as the pelvic crossing syndrome, is a sign of abnormal posture of the human body. The muscles around the phalanx and the muscles at the front and back of the waist are not balanced, resulting in the imbalance of pelvic morphology. The muscles of pelvic forward tilt are mainly erector spine and iliopsoas muscles, and the muscles of pelvic backward tilt are mainly abdominal and gluteal muscles. The lines of pelvic forward tilt and backward tilt muscles are just in a cross state, so it is clinically called the lower cross syndrome. In addition to obvious pelvic forward tilt, excessive lumbar curvature can also be seen, which is mainly related to sedentary, improper exercise, long-term poor posture, etc. For office workers, the occurrence of lower crossing syndrome mainly stems from poor posture and sedentary lifestyle. In short, this disease is caused by the basic inactivity of the lower body muscles. On the one hand, when the hip joint flexes in the sitting position, the iliopsoas muscle keeps shortening. In the long run, this muscle will shorten. When standing, the shortened muscles will pull the pelvis forward. On the other hand, the gluteus maximus and abdominal muscles of people who are accustomed to sitting are not strong enough, and muscle weakness will also occur over time, which is not difficult to explain why the gluteus muscles of sedentary people are often very loose. The abdominal and buttock muscles are relatively weak, but the thigh hip flexor muscles are tense, resulting in the imbalance of the biomechanical structure, the appearance of the pelvis tilting forward, and finally the lower cross syndrome. In addition, pregnant women, obese people and women who often wear high heels also have this situation. Both foetuses and obese people have a certain weight in their stomachs. The abdominal muscles are stretched and stretched for a long time, and are weak. It is difficult to tighten them. As a result, the front and rear muscles of the pelvis are out of balance (the front muscles are weak and the rear muscles are strong), resulting in the pelvis tilting forward. However, it is impossible for a person to bend over and walk. When walking upright, the upper part of the lumbar spine is straight, and the lumbar muscles continue to exert force. At this time, you can see that the lumbar spine is excessively convex, causing the center of gravity of the lumbar spine to move forward, and the stomach is straightened when walking. Body injury caused by lower crossing syndrome - posture problems: when the body is in the wrong position, posture problems will follow, such as abdominal lordosis and abnormal hip upwarping (not the full shape of gluteus maximus, but the forward inclination of pelvis leading to the backward pouting of hip). -Muscle pain: Because the core muscles of the abdomen can not be tightened properly, when carrying heavy objects or carrying things in daily life, the waist muscles need to be overexerted. In addition, the abdominal muscles are weak, and it is easy to suffer from pain. Over time, the waist muscles will also suffer from strain. What's more, it directly leads to dislocation of small joints of lumbar spine, which makes it difficult to straighten the waist, and the pain is unbearable. When standing, the lumbar muscles and fascia will be tense for a long time, which will cause pain. In addition, when you lie on a hard bed, your waist is suspended, and you may also feel uncomfortable or painful if you lie for a long time. -Joint pain: abnormal posture will increase waist