Some time ago, we talked about the chair problem, and again today. The chair is an everyday object in our life, mainly to rest, reduce labor intensity, but also our modern office in the important office supplies, but we often do not pay attention to him, find a chair to sit on the line, do not know that this is the cause of our modern back pain and hip and leg pain. The following is a brief analysis. With the wheels of the computer chair to our work in the movement brought convenience, but also to our waist and legs brought trouble, due to the convenience of moving, we have to use the waist and leg strength to control the chair, do not let the chair activity, you want a day down how tired ah, if the chair a little older, connecting rod and chair where loose, the stool surface will shake, then more tired, hips and so on are to suffer, over time will Cause strain on the spine, waist hip and leg muscles, I hope you pay attention. Here it is recommended to use a four-legged stool, more stable, sit as far as possible in the end, back slightly against the back of the chair, so that the body is relaxed, not easy to cause fatigue. In addition, when sitting on the stool, it is recommended to sit on the stool sitting full, the back against the back of the chair, so that you can reduce the pressure of the upper body on the waist.