Before getting a disease in the lumbar spine, a healthy chair outperformed 10 superb doctors. If the size of the chair does not fit the body, then the best chair should not be bought. Of course, if the body is not seated correctly, you should first correct the sitting position, followed by the chair. So, what standards should the true health-friendly and healthy chair meet? Furniture fans take you to look at it. Standard 1 chair for a healthy seat is too soft and very hurtful The softness and hardness of the chair is also very important. The anatomy and physiology of the human body tells us that when sitting, the lumbar load of the person is larger than when standing, the position of the spine and the pelvis should be vertical, and the vertical fixed position is the muscles on both sides of the spine. Maintain. If the position of the spine and the pelvis is shifted for a long period of time, the force of the system will be biased, which will easily cause back muscle spasm and even bone damage. Over time, the user will feel back pain. A chair that is too soft is easy for the user to bend up, and the muscles and bones of the whole body are unevenly stressed, which leads to back pain. In this case, the user should consider changing the chair and choosing a harder chair for himself. If you continue to use the original chair, move your hips back as far as possible while sitting down, so that the back is close to the back of the chair instead of Hanging, you can also consider adding a cushion to your waist as a support. Standard seat height for health seats is not less than 39cm The good seat design should make the center of gravity of the user's upper body fall on the bones of the buttocks, and set the height of the seat according to the reference position of the person's seat (the ischial node). Generally, the height of the seat is 39cm. Between ~42cm, if the height of the seat is lower than 39cm, the user's knee will be arched, resulting in discomfort; when the height of the seat is more than 50cm, the body pressure will be dispersed after the user sits down. To the thigh part, the inside of the user's thigh is compressed, which can cause swelling of the lower leg. The standard 3 backrest of the health seat is stressful The backrest of a good chair is also very particular. Generally speaking, for a chair, the backrest is not a necessary part. If the user has a large range of activities and wants to be able to flexibly turn and pick up the items, he or she can choose a chair without a backrest. When the user works for a long time, the chair with the backrest can make the user feel more comfortable. Generally speaking, the height of the backrest is not fixed, depending on the habits and feelings of the user. For the work chair, as long as the movement of the user is not affected, the lower back height can only reach the first second lumbar vertebra of the user. The upper one can reach the shoulder blade and neck of the user; however, for a casual chair, the height of the backrest is preferably to the neck, so that the user's head is supported to facilitate the rest of the user. The standard 4 seat surface of the health seat should not be too narrow When we want to choose a chair that is suitable for ourselves, we should consider the seat, backrest, and armrests of the chair. The width, depth, inclination, and back bend of the seat surface must conform to the scale of the body and the law of movement of each part. The height of the seat, too high or too low, will cause damage to the user's body. When choosing a seat, in addition to considering the height of the seat surface, it should also be noted that a good chair must have a width of the seat surface, and the seat surface is too narrow, which may cause discomfort to the user because of the body. The muscles on both sides will be squeezed; if the seat is too wide, the user's hips will definitely open outwards, so the user's latissimus dorsi and shoulder deltoid muscles will be pulled. If you sit for a long time, you will feel tired. Standard for healthy seats 5 backrest tilt 110 degrees The inclination of the backrest is also learned. Generally speaking, the inclination angle of the backrest is gradually increased backward, and the support point of the human body is also gradually shifted upward. Generally speaking, the angle between the back of the chair and the thigh is about 100 to 110 degrees, and the sitting posture of the torso is too erect, which tends to exert pressure on the spine. Related reading: Ancient Chinese chair culture Pay attention to the above standard of the seat, you have a reference standard for the purchase of the seat, and will not be confused by the products that are beautiful or exaggerated on the market, but not very friendly to the human body.
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What kind of seat is good for the body? What conditions should a healthy chair meet?