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An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. It is usually a swivel chair , with a set of wheels for mobility and adjustable height. Modern office chairs typically use a single, distinctive load bearing leg (often called a gas lift ), which is positioned underneath the chair seat.
Conclusions from scientific work on the possible benefits of the kneeling position point in different directions. A. C. Mandal's research from the 1960s to the 1990s concluded that a forward sloping seat did effectively tip the pelvis forward, opening up the angle between torso and thigh, and thereby correctly aligns the spine, indicating a more suitable position for long periods of sitting.
The term ergonomics (from the Greek ἔργον, meaning "work", and νόμος, meaning "natural law") first entered the modern lexicon when Polish scientist Wojciech Jastrzębowski used the word in his 1857 article Rys ergonomji czyli nauki o pracy, opartej na prawdach poczerpniętych z Nauki Przyrody (The Outline of Ergonomics; i.e. Science of Work, Based on the Truths Taken from the ...
Aesthetics – Philosophical study of art and beauty; Comfort – Sense of physical or psychological ease; Usability, also known as Ease of use – Capacity of a system for its users to perform tasks; Business performance management – Processes to bring output into alignment with goals
Office swivel chairs, like computer chairs, usually incorporate a gas lift to adjust the height of the seat, but not usually large (e.g. recliner) swiveling armchairs. A draughtsman's chair is a swivel chair without wheels that is usually taller than an 'office chair' for use in front of a drawing board. They also have a foot-ring to support ...
Saddle chair users sit 20–30 cm higher, which puts the hips and the knees into a 135° angle, compared to the 90° angle typically associated with sitting on a traditional chair. Because the saddle chair is higher than a normal office chair, the desk has to be higher as well. For this purpose there are desks that can be electronically or ...