How to choose a computer chair: device, specifications

When sitting on an ordinary chair, the neck quickly begins to numb, pains in the lower back, back appear, headaches begin, and fatigue quickly sets in. All this can be avoided if you choose the right computer chair for work.

Experimentally, doctors have proved that a comfortable office chair increases productivity and significantly reduces complaints about well-being.

Device

We are all different - different height, weight, physique, as well as different health conditions. Therefore, the most important characteristic of an office chair is its ability to tune individually for each person. For this purpose, good office chairs have a number of adjustments that help to “fit” them to their parameters and make the work as comfortable as possible.

Seat

First of all, pay attention to the form. Ideally, it should not have sharp corners. The material is also important, it must “breathe”, be easily permeable to steam and moisture, so that it does not “sweat” from prolonged sitting.

There are several adjustment options for the seats.

• First of all, this is the ability to change its height in order to fit the chair in height.
• Another important adjustment is depth.
• It is necessary to be able to push the seat forward or push it back, ensuring that it ends 10 cm from the knee bend.
• Some seats provide the ability to adjust the tilt of the seats, which can also be important with some features of the figure.
• Additional functions are possible, depending on the model. On the edge of both the seat and backrest there is usually a slight thickening. This is a very functional supplement, it helps maintain normal blood circulation, helps to evenly distribute the load on the back and keeps it from slipping over the seat.

Gas lift

The modern arrangement of an office chair is rather complicated. The height is adjusted using a gas lift - a cylinder of steel filled with an inert gas. This device allows you to accurately set the desired height, and in addition absorbs vertical loads.

If the gas lift breaks down, the chair can easily break, so it is extremely important that it is reliable. A system of categories is used to assess quality, with the fourth being the most reliable. The chair you choose must necessarily meet all technical standards and requirements in order to exclude the possibility of injury.

Back and spinal roller

One of the most important characteristics of an office chair is the ability to adjust the back. This is necessary in order to provide constant support to the spine, regardless of the position in which you are most used to working. Typically, the angle of the backrest relative to the seat is slightly larger than the straight, but you need to select it individually.

Also, many models have the ability to adjust the depth of the back of the office chair, thanks to this function, you can move or move the back from the seat so that it continuously supports the spine.

In the lumbar region, the spinal column forms a natural deflection. If you lean with your back on a completely straight back, this deflection will be straightened, and the nerves emerging from the spine will be pinched, which will lead to negative health consequences.

Therefore, in most modern models of office chairs use special rollers, similar to a small pillow, placing them in the lower part of the back. This roller should be able to move up and down so that it can be set exactly opposite the lower back.

Headrest

If you want to choose a computer chair in which you will not have a sagging neck and a headache, pay attention to the headrest device. This useful device relieves tension from the neck and muscles of the shoulder girdle, but for it to do this effectively, it must have adjustments both in height and in angle of inclination.

The mechanisms

Some chairs are equipped with additional mechanisms, which at first glance may seem superfluous, but actually greatly increase the comfort of prolonged sitting at the desktop.

Rocking

In addition to the backrest tilt mechanism, which allows you to tilt it back at some points, lean back and relax, in some models there is a swing mechanism. It helps to stretch your back a little, relieve tension from it.

Swing is possible due to the displacement of the axis of the backrest towards the center of the chair, so you can sway slightly without lifting your legs off the floor and without raising the knees.

The mechanism is designed for sitting weight from 50 kg, but not more than 120. In some recent models, a synchronizing mechanism is additionally installed, which allows changing the position of both the back and the seat depending on the posture and taking into account the weight of the sitting person. If you lean back, the seat itself goes a little forward.

Spider

In the complex arrangement of the office chair, the most critical part is the cross. It is her that accounts for the greatest load. Therefore, the material from which it is made must be of high quality and durable. Be sure to pay attention to this when buying.

Wheels

Significant loads also fall on this structural element, so the wheels must be durable. But there is one more requirement: the material from which they are made should not leave marks on the floor, and at the same time should slide well so as not to impede movement.

Ideal for making wheels nylon, polyurethane as well as polypropylene. The GS international certificate is received by rollers having a self-braking system. Some models install stops to prevent spontaneous rolling.

Armrests

Another important characteristic of an office chair is the presence of armrests. They take on the weight of the hands, allow you to lean slightly on your elbows, thereby unloading the cervical spine and the entire spine as a whole.

It must be understood that only those armrests that are suitable for you in height can cope with this task, and for this they must have height and distance adjustments. For support to be effective, arms lowered on the armrests should be approximately at the level of the working surface of the table.

Customization

Choosing the right computer chair is half the battle. The second, no less important half is to configure it. Before buying, carefully study not only the product certificates, but also the capabilities of the particular model chosen, its adjustment. Be sure to sit in it, and try to make adjustments for yourself.

Set the following settings:

• The angle formed by the seat and back should be slightly more than 90 degrees.
• The height should be such that the arms bent at the elbows rest on the table at a right angle, while the legs are firmly on the floor, the angle between the leg and thigh is 90 degrees.
• The back of the knees should not be in contact with the edge of the seat; if this happens, adjust the depth of the seat.
• Set the lumbar cushion to the desired height so that the spine is S-shaped.
• Adjust the swing mechanism to suit your weight.

All of these settings will help you stay healthy and healthy.