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| A | | | Active Adjustment :
Device to change the geometry of a chair that must be consciously manipulated by the sitter. A mechanism for seat height adjustment is the most common active adjustment on an office work chair. Adjustable Back:
Chair backrest that can be actively adjusted. For example, an ergonomic task chair has a backrest with three interrelated adjustments -- for height, depth, and angle -- which are locked into place until the sitter elects to change them. Adjustable Lumbar Support:
Device to allow the sitter to actively adjust the size of the lumbar region of the chair's backrest. An ergonomic executive chair has an air-filled bladder that the sitter can manipulate to increase or decrease the size of the lumbar support. Adjustable lumbar support is also found in automotive seating. Ankle Tilt:
Tilt mechanism that allows the seat of a chair to move about multiple pivot points. As the sitter reclines, the body first rotates about the ankle, then bout the knee and pelvis-- the body's natural pivot points. Anthropometric:
Based on measurements of the human body. Anthropometric data is useful in designing anything--like a chair--which has to interface with people.Anthropomorphic:
Having a human form or attributes. Describes objects that have human characteristics. Audit:
Formal examination of the opinions of people who sit in ergonomic chairs at their workplace. These opinions are valuable, as people spend a lot of time in their work chairs and become experts on them. Opinions are gathered on a standard questionnaire, allowing the response to be compared with "use test" results taken earlier, when the chair was in the design process, as well as with user opinions of other chairs.Awkward posture:
Deviation from the ideal working posture of elbows at the side of the torso, with the wrists neutral. Awkward postures typically include reaching behind, twisting forward or backward bending, pinching, and squatting. | | |
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