Spine experts in the United States recently reminded many of the office chair height are not standard, not to let the body to extricate from the lumbar back pain. So, how to adjust the office chair to the "best state"?
First of all, according to the nature of the work of the desk or the desk to adjust to the appropriate height. Because different desk height have different requirements for the seat position, sometimes even need a chair. Once the height of the desk is fixed, can according to different parts of the body as "reference" to adjust the seat height.
Elbow: in the premise of sitting on a comfortable elbow from the table more close as possible, to ensure that the upper arm and spine parallel and put his hand on the surface of the work table (such as notebook or on the keyboard), upper and lower adjustment seat height, to ensure the elbow at a right angle. At the same time, adjust the height of the armrest makes the upper arm just on the shoulder to bring a little.
Thigh: check whether the fingers can be in the lower part of the thigh, the front end of the chair free slide. If the space is too tight, you need to add an adjustable footrest with high thigh. If there is a finger between your thigh and the front edge of the chair, then the height of the chair is to be promoted.
Calf: in the buttocks close to the seat of the state, try clenched fist can pass through the gap between the calf back and front of the chair. If you cannot easily do, then the chair is too deep and need to move the back of a chair, pad a cushion or a chair.
Midfielder: don't feel tired in the chair huddled together, it will increase the lumbar disc and pressure. Buttocks close to the back of a chair, had better put a cushion for back slightly bent, so tired, the body will not shrink one regiment, but also to minimize the burden on the back.
Line of sight: close your eyes, then slowly open your eyes, and the line of sight should be in the center of the computer monitor. If the display is too high or too low, you need to make corresponding adjustments to reduce cervical muscle strain.
Warm reminder: a long time to fix the sitting posture is not good for the body. So remember to get up at least one to two minutes every half hour. Even simple activities such as stretching the body or going to the bathroom can be. If possible, take a walk 20 minutes, not only can relieve pressure on the spine, but also can promote the blood circulation, to bring nutrients to the various parts of the spine.
According to the "herald of medicine"