| By now, most people are familiar with the term | | | | way during some activities that may require lots |
| "Ergonomics" and understand that ergonomic | | | | of arm movement. |
| furniture is more healthy for the body because it | | | | Width-adjustable Armrests: This function allows |
| helps to maintain more natural positions that | | | | the user to change the distance between the |
| reduce stress to the bones, muscles, and nerves | | | | armrests, not the armrests themselves. For an |
| throughout the body. But chair companies and | | | | ergonomic office experience, the user does not |
| ergonomists often throw around terms related to | | | | want a chair with armrest too close together as |
| the designs and functions of ergonomic chairs that | | | | this will splay the elbows and cause the wrists to |
| the common consumer may not understand. Here | | | | bend to the side during activities such as typing. |
| is a list of some terms you may need to know. | | | | This puts the user at wrist for Carpal Tunnel |
| Lumbar Support: This is one of the most | | | | Syndrome. |
| important features of an ergonomic chair. This | | | | Padded Armrests: This feature is advisable as it |
| device is intended to prevent, as much as | | | | prevents uncomfortable pressure on the |
| possible, the flattening of the lumbar spine that | | | | undersides of the forearms and elbows. |
| occurs to most people when there are seated. | | | | Backrest Angle Adjustability: This function allows |
| Lumbar supports usually work as a gentle curve in | | | | the user to change the angle of the backrest |
| the backrest shape, and allow user to be seated | | | | relative to the angle of the seat. The most |
| more comfortable for a longer period of time. | | | | common way to adjust the backrest is through |
| Backrest Height Adjustability: This function allows | | | | and adjustment mechanism, however, it can also |
| the user to change the height of the lumbar | | | | be adjusted through flexing materials or springs in |
| support area in the chair backrest, although this | | | | the shell of the chair. Backrest angle adjustability |
| feature is often interpreted as the ability to | | | | enables the chair to support different degrees of |
| change the height of the entire backrest. This | | | | recline for the body, which in turn transfers some |
| function accommodates preference by different | | | | upper-body weight to the chair backrest and |
| users regarding where and how the lumbar | | | | relieves the lower back's intervertebral discs. This |
| support curve contacts the back. | | | | function also increases the angle between the |
| Lumbar Depth Adjustability: This feature affects | | | | torso and the thighs, which causes the lower back |
| the size and sometimes the firmness of the | | | | to curve inward. This inward curve in the back |
| lumbar support curve in a chair's backrest. Like | | | | also relieves pressure on the disc. |
| backrest height adjustability, it accommodates | | | | Chair Recline or Tilt: This is a similar function to |
| different body types and preferences by the | | | | the Backrest angle adjustors, but not the same. |
| user. | | | | Chair recline or tilt changes the angle of the entire |
| Height-adjustable Armrests: This function, as the | | | | chair seat relative to the floor. There are a couple |
| name suggests, allows the user to adjust the | | | | of ways that this function can work. One is a |
| height of the armrests to suit the body of the | | | | column tilt, which pivots the chair at the top of |
| person, this helps people avoid using chairs with | | | | the base post and lifts the knees slightly while the |
| too high or too low of armrests, which could | | | | back descends. The second is called a knee tilt, |
| result in elevated shoulders and pressure on the | | | | where the pivot point is forward of the post, |
| undersides of the elbows and forearms, or would | | | | closer to the knees. In a knee tilt chair, the knee |
| require the user to slump or lean over to one side | | | | lift is negligible, but the back descend more than in |
| to use the armrest, respectively. This feature also | | | | a column tilt chair. |
| allows for the armrest to be moved out of the | | | | |