Therefore, when the computer chair sat at the waist, if placed on a cushion, can make the waist to get effective support and maintain the lumbar flexion physiological, lumbar, lumbar muscle balance pressure, relieve fatigue, increase comfort, prevent and improve lumbar discomfort, is good for the stability of spine.
Secondly, the thickness of the cushion should be suitable. Not too thin is too soft, so not to hold up the role of the waist, not too thick too hard, too thick may cause excessive flexion of the lumbar spine, and too hard will made people uncomfortable. When you choose, you can put the cushion on the back of your waist. If the cushion is comfortable after ten minutes, the thickness is suitable. If you feel the fatigue or even pain, it means that the cushion is not qualified. Again, itself has been suffering from lumbar disc herniation and lumbar spinal stenosis, more attention should be paid to the comfort of the cushion.