The selection of the prefect office chair is definitely a cumbersome task, as the office chairs are available in a wide variety of designs, sizes and styles. To speak frankly, there is no chair, which is perfect for everyone. This is because some may prefer a chair in mesh fabric and some in leather. Some want a wide seat, whereas some want a wide back. So selection of the perfect office chair involves assessing the needs and various other factors.
In first considering the "conventional" style of office chair, there are a number of things an ergonomic chair should have, including:
Size of the office chair – First of all, the office chair must fit you perfectly. A person with short height should not invest in an enormous chair as it would hinder the ability to work smoothly. The same fact applies for large people. A small chair for large people will simply look hilarious and shall also cause discomfort. When purchasing a chair, how you sit and the capacity of the chair should also be considered.
Seat width and depth - The seat should have enough width and depth to support any user comfortably. Usually 17-20 inches wide is the standard. The depth (from front to back of the seat) needs to be enough so that the user can sit with his or her back against the backrest of the ergonomic office chair while leaving approximately 2 to 4 inches between the back of the knees and the seat of the chair. The forward or backward tilt of the seat should be adjustable.
Seat height - Office chair seat height should be easily adjustable. A pneumatic adjustment lever is the easiest way to do this. A seat height that ranges from about 16 to 21 inches off the floor should work for most people. This allows the user to have his or her feet flat on the floor, with thighs horizontal and arms even with the height of the desk.
Adjustable – Working in an office typically involves spending a great deal of time sitting in an office chair —a position that adds stress to the structures in the spine. Therefore, to avoid developing or compounding back problems, it's important to have an office chair that's ergonomic and that supports the lower back and promotes good posture it is always better to buy a chair that features adjustable joints so that it can be used in a versatile way. The chair seat should tilt back and front. The depth of the chair long with the height should also be adjustable.
Back support – most of the people tend to forget that the neck and the back are the most prone to strain and stress and play a vital role in the design. A perfect chair would be the one that features firm support and promotes a good posture. Back support should not be compromised at any cost. The backrest of an ergonomic office chair should be 12 to 19 inches wide. If the backrest is separate from the seat, it should be adjustable in height and angle. It should be able to support the natural curve of the spine, again with special attention paid to proper support of the lumbar region. If the office chair has the seat and backrest together as one piece, the backrest should be adjustable in forward and back angles, with a locking mechanism to secure it from going too far backward once the user has determined the appropriate angle.
Material – The material on the office chair seat and back should have enough padding to be comfortable to sit on for extended periods of time. Having a cloth fabric that breathes is preferable to a harder surface. The material used for office chair should also be given importance as it shall dictate the comfort level. The common materials used for office chairs are leather, foam, mesh, plastic and upholstery. Mesh materials keep the body cool, as it allows air to pass through and is thus the ideal selection in humid climates. Leather chairs are always a wise selection, but they are suitable for temperature controlled areas. On the other hand, plastic chairs are durable, but they are uncomfortable for long hours.
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