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An “ergonomic” office chair can be “personalized” through numerous adjustment options: The seat height is adjustable (with a lever that acts on a gas lift cylinder [7]). The armrests are height adjustable, also in the width between them and the direction is adjustable. There are also armrests that can be turned backwards (behind the ...
A creeper is a low-profile tool used to help a person more easily slide in and out of confined spaces, such as the underside of a car, for performing inspection or maintenance. [1] Other names for such devices include car creeper , garage creeper and mechanic creeper .
Commonly, ergonomic issues can arise in an office setting. [12] [13] Many people who work in an office (either a home office or a formal office building) often spend hours sitting and working in the same position. Ergonomic considerations include chair and computer monitor height adjustment, lighting position, break frequency, and chair design ...
Chair, c. 1772, mahogany, covered in modern red morocco leather, height: 97.2 cm, Metropolitan Museum of Art (New York City) A chair is a type of seat, typically designed for one person and consisting of one or more legs, a flat or slightly angled seat and a back-rest.
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 ...
An evaluation performed by NHTSA in 1982 on passenger cars found that "integral" head restraints—a seat back extending high enough to meet the 27.5 in (698.5 mm) height requirement—reduces injury by 17 percent, while adjustable head restraints, attached to the seat back by one or more sliding metal shafts, reduce injury by 10 percent.