The cushion has two functions, one to remind the body to maintain the correct sitting position and the other to support the lumbar spine. Chronic low back pain often occurs in sedentary office workers. Eight adults are caused by improper sitting postures such as bending over and hunchback. According to the Institute of Labor Safety and Health of the Taiwan Executive Yuan, when sitting, the lumbar support is twice as strong. If the body leans 20 degrees forward, the pressure is three times that of the original. Gu Mingzhou, dean of Taiwan’s Changhua Xiuchuan Hospital, pointed out that cushions can alleviate this destructive power and reduce the burden on the lumbar spine.
There are many kinds of cushions in the market. How to choose? Lin Weizhou, a rehabilitation physician at Chang Gung Hospital in Taiwan, said that materials, styling and use are the most basic elements.
Select a cushion with a curvature. A curved cushion is much better than a non-curved cushion and has enough strength to support the waist. It is best to choose a cushion with a convex shape, the size varies from person to person. The correct placement is from the underside of the shoulder blade to the buttocks. Choose the style that best fits your waist curve. Some cushions also have protruding arcs on the left and right sides. Lin Yikai, a rehabilitation doctor at Fuxin Hospital in Taiwan, believes that most people don't use it. If you drive a lot, you can choose this kind of cushion, which is more protective.
Choose the cushion of memory foam or plastic sheet material. The material of the cushions on the market is divided into four types: mesh, elastic cotton, memory foam and plastic plate. In general, memory foam and plastic sheet have the strongest support. There are also many people who use plush toys as cushions. They feel that the filling cotton used inside is soft and comfortable, but this material can disperse less pressure. It can not be used by middle-aged and elderly people who have already experienced pain.
The cushions must be counted to count. When using the cushions, be careful that no matter which kind of cushion is used, it must be relied upon to function. In addition, the buttocks should occupy the entire chair surface, so that the waist and back are completely close to the back of the chair, and the two feet are placed on the ground. This position is the most labor-saving and comfortable, which helps to maintain smooth blood circulation in the legs. People with shorter statures can choose thicker cushions. If the cushion is added, the buttocks can not fill the seat surface. It is recommended that the body be placed close to the back of the chair, and a box is placed under the foot, and the knee is higher than the buttocks.
In addition to adding cushions, pulling the chair closer to the table, or bringing the computer screen closer to yourself, can also reduce the chance of bending over.
(Editor: Xu Xiaoyu)
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