The proper use of the office chair is the following points:
1, the correct seat cushion height must adjust the seat cushion to your feet can be flat on the ground, and the bending angle of the thigh presents 90°
2, the right seat cushion depth should be sitting on your hips at the top of the seat cushion, and appropriate adjustment seat cushion depth, so that its seat cushion can effectively support the thigh area of more than 2/3, and let the thigh and leg bending angle of 90°.
3, the correct armrest height should adjust to the arm and elbow is 90°, at this time the arm naturally hangs, without any shoulder feel is correct. Long-term arms in the absence of support or poor support will cause shoulder pain or periarthritis of the condition, the impact on health.
4, the correct back cushion angle should be fully affixed to the back cushion, so that the spine can be a certain relaxation, and then effectively remove the spine fatigue, to prevent chest pain.
5, the correct waist height should be adjusted to $ord lumbar spine position, because when the human body presents posture, apart from the legs and hips, the weight of the whole person is shouldered by the lumbar spine, so the correct waist height helps to prevent tendon or myositis, intervertebral disc herniation, spine decline, lumbar sprain, degenerative spine, sciatica, etc.
6, when the operation seat cushion depth adjustment because of the need to rely on the strength of the hips to slide out of the seat, at this point the back needs to rely on a fixed state of the back cushion, so that the strength from the hips, if the back pad is not locked in the back of the strength of the rear, resulting in the hips can not force, and then the cushion glide is not smooth.
7, the correct angle of the armrest should be able to give your hand or elbow at any time to moderate support, hand or elbow joint long-term lack of moderate support easy to cause carpal tunnel syndrome and elbow joint syndrome, of course, and cervical spine protection is also a certain relationship
8, the correct head pillow height should be adjusted in the cervical spine of the third section to the seventh section, so that the cervical spine can be properly supported, effectively relieving the fatigue of the neck spine, prevent bone spurs or chronic spinal degeneration of the situation
9, the correct back cushion back elasticity adjustment, should be the back of the weight after the relaxation of the standard, to properly adjust the size of the back elasticity, if the elasticity is greater than the back weight will reflect the difficulty after the back or back is not easy to create a sense of discomfort, if the elasticity is less than the back weight to create a feeling of insufficient support or inadvertently after the rapid back to create insecurity