Roxane Salomé April 9, 2021 Chair
The backrest angle should be set so that you feel the backrest while you are in your preferred sitting position. You should not have to lean back to feel it, nor should it force you farther forward when you are sitting. Your back rest angle should allow, however, to move forward and backward with added pressure while still providing you with lumbar/back support. Usually, underneath your chair there is a knob that allows you to adjust the backrest to the amount of pressure you want. After finding that perfect spot make sure to lock your backrest angle to ensure it stays in place. Usually by pulling the lever up you can unlock the back angle and pushing down locks it into place.
When determining the correct height to have your office chair at, first make sure to place it in front of the desk or work area you will be spending most of your time at. If you have a keyboard tray installed underneath your desk, you will also need to take that into consideration when deciding the correct height your office chair should be at. Keep in mind that you will want to have a good amount of clearance between your keyboard tray or desk and your thighs to enable you to work more comfortably. If your computer chair comes with arms you will also want to take that into consideration as well especially if they are not height adjustable.
When sitting in an office chair the first area of the chair to focus on is the part you sit on all day, the seat. With your back against the backrest, the seat should support most of the length of your thighs without applying pressure to the back of your knees. Waterfall seats (which most chairs now come with) are ideal for allowing you to sit comfortably and properly. Your seat height should be set so that your thighs are approximately parallel to the ground when your heels are firmly planted on the ground. If it is not possible to have your feet flat on the ground because your work station is too high and not adjustable, a footrest is a good addition to keep your feet flat and body in proper posture. Movement throughout the day is encouraged, so do not feel as if you always need your feet to be planted on the ground. There is generally a lever on the right side if not the left that when pulled up allows you to move either up if your taller or down if you are of shorter stature. A tip for adjustment is to start with your seat at its highest and lower it gradually until it is at a comfortable height. as you cannot usually raise your seat while you are sitting in it.
Once you have determined where you will be spending most of your time sitting and ergonomic accessories that may also play a part in the height adjustment of your chair, you will want to locate where the button or lever is on your chair that controls the height. On most chair models, it is generally located on the right hand side of the chair right below the seat. Some higher end chairs may even have pictures on their levers explaining what each lever on the chair does. All chair models will vary, and you will need to take the time to understand what each button does in order to fully adjust your chair to meet your needs.
Older office chair models can be adjusted by turning a thick bolt which allows you to pick the height you would like to have your chair positioned at. Adjusting the height of your chair may seem like common sense and a trivial matter, but it is actually very important to adjust the height to fit your body type. Chairs that are not properly adjusted to meet the needs of the user may cause back pain, eye strain from not being properly positioned in front of your computer screen, fatigue from poor circulation, and numerous other health issues. This can be especially true if you sit in the same position for long periods of time.
If you look at antique French wing chairs, or newer chairs echoing the Louis XIV or Louis XV period, you may well see a lower seat in the bergère style. Similarly, in 18th century England Hepplewhite tried lowering the seat in his designs. He called the wings saddle-cheeks, perhaps knowing that they were called cheeks, not wings, in France. Ears is their other name, used in some parts of Europe, and remembered in the old-fashioned British name lug-chair. (Lugs is slang for ears.) American wing chairs, also called easy chairs, were often considered bedroom furniture suitable for anyone frail or tired, sitting quietly in their room. Both antique and modern wing chairs may be associated with elderly people; a high seat and back with built-in draught-proofing offer an appropriate kind of comfort, and remind us that another name for this piece of furniture is grandfather chair.
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