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| K | | | Knee Tilt: A tilting mechanism for a chair which causes the body to rotate around a pivot point located near the sitter's knee.Knuckle Tilt: Center column tilt. So called because it is a single pivot mechanism mounted on the end of the column, similar to a knuckle joint in the human finger.Kyphosis: Natural outward curve of the upper spine. Unnatural outward curve of the lower spine that occurs when the angle between the thigh and torso in a seated position is less than 90 degrees. | | |
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