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Squatting is a posture where the weight of the body is on the feet (as with standing) but the knees and hips are bent. In contrast, sitting , involves taking the weight of the body, at least in part, on the buttocks against the ground or a horizontal object such as a chair seat .
A standing chair is a tall support for the body—a modified chair or stool—designed for standing work or to reduce fatigue.. The precursors of standing chairs are chairs that relieve sitting discomfort by providing a more open angle between thighs and torso: traditional architects' tall stools, bar stools, and more recent bar-height tables in restaurants.
For the foot, pronation will cause the sole of the foot to face more laterally than when standing in the anatomical position. Pronation of the foot is a compound movement that combines abduction, eversion, and dorsiflexion. Regarding posture, a pronated foot is one in which the heel bone angles inward and the arch tends to collapse.
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 ...
In medicine and occupations concerned with physical fitness, the concept of good posture is referred to as "neutral spine". [7] In this context, proper posture or "neutral spine", is the proper alignment of the body between postural extremes. Deviations from neutral alignment are identified as excessive curvature or reduction in curvature.
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To calculate the REBA score, the tool separates the body parts into the two groups group A and group B. The body parts assigned to Group A are: Neck; Trunk; The body parts assigned to group B are: Upper arms; Lower arms; Wrists; Using the score of each body part posture in group A, locate the score in table A to assign a group A posture score.
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