kneeling seat is a type of chair to sit in position with the thigh down to an angle of about 60 ° to 70 ° from the vertical (opposite to 90 ° when seated in an ordinary chair), with some weight supported by shinbone.
Video Kneeling chair
History
In 1979, Hans Christian Mengshoel invented the original kneeling chair of modern times, the seat of Balans. Three Norwegian designers, Oddvin Rykken, Peter Opsvik, and Professor Svein Gusrud developed chairs based on the same principle.
Maps Kneeling chair
Destination
The kneeling chair is meant to reduce the tension of the lower back by dividing a person's weight load between the knees and buttocks. People with tail or tail bone pain resulting from significant hours in a sitting position (eg, desk work) are common candidates for such seats. However, it is not proven that a kneeling chair is the optimal solution.
The right kneeling chair creates an open body angle by lowering the lower body corner, keeping the spine aligned and the nanny properly placed for the task. The benefit of this position is that if someone leans in, the angle of the body remains 90 Â ° or wider. The misconception about the kneeling chair is that the body load bears on the knee, and thus the user with a bad knee can not use the chair. In the right kneeling chair, most of the weight remains in the butt, and some weights bear on the shin, not the knee. The main function of the shin lies (knee pad) is to prevent falling from the chair.
The saddle seat provides another way to keep the body from falling forward; These types of seats are generally seen in a few seated seats, which attempt to mimic the position of a rider or saddle of a horse rider.
Academic studies
The conclusion of the scientific work on the possible benefits of the point of kneeling position in various directions.
Dr. AC Mandal from the 1960s and 1970s concluded that a forward seat tilted ineffectively pushed the pelvis forward, opening the angle between the torso and thigh, and thus appropriately aligning the spine, indicating a more suitable position for the sitting period long.
Drury and Francher studied the original Balans armchair in 1985, concluding that overall it was "no better than a conventional seat and could be worse than a well designed conventional office chair".
Lander, et al. conducted another experiment in 1987 comparing seats kneeling with conventional seats, finding support for claims of increased blood circulation.
A 1989 study on samples from 20 subjects concluded that Balans seats promote greater lumbar curvature than "straight back seats" during sitting relaxed, typing, and writing, and that may contribute to the treatment of lower back injuries.
A more recent study from 2008 confirmed that "ergonomically designed knee seats that are set on a 20 ° slope, do retain a lumbar curvature that stands for a greater degree than sitting in a standard computer chair".
References
External links
- The kneeling seat plan
Source of the article : Wikipedia
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