He was hospitalized for 8 days because of lumbar disc herniation and nerve compression. It hurts badly. After infusion in the hospital, I began to exercise about 2 months later. For more than a month, they were all heavy, and they were pulled with 100KG. At present, my waist is much better than before, and I have never done sit-ups, but I tried 10 minutes and thought it was a lumbar disc herniation that night. Fortunately, I was fine after a night's rest. I have never done sit-ups in more than a month's exercise, and I use simple abdominal muscles. Facts have proved that lumbar disc herniation can do heavy fitness (except sit-ups). I squat with 100KG, and my waist should be straight, which feels very cool.