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The Different Types of Ergonomic Keyboards
Almost every major technology brand is releasing ergonomic keyboards these days. Microsoft, Apple, Dell, Toshiba, Logitech, Adesso and other brands are vying for their share of the PC ergonomics market, which aims to improve comfort for computer users while they go about their repetitive tasks. While these new designs might be a little tricky to adjust to, there are a number of people who can benefit from these innovations. For instance, people who type all day long at a rapid pace for work, the elderly, the disabled and people who have weak wrists may all prefer an ergonomic design to a conventional keyboard. There are, in fact, many types from which to choose.
Split keyboards are one of the more popular designs because they reduce ulnar deviation, which is a hand position where the wrist is bent toward the little finger, contributing to the fatigue of muscles, thumb-area tendons and wrist nerves. A conventional keyboard requires users to strain to reach the space bar and vertical columns of keys like "Home" or "Page Up/Down." Split keyboards change the arrangement of the keys, separating the keys into two halves elbow-width apart. Sometimes the angle is slightly changed to reduce ulnar deviation further. After an initial drop-off in speed or accuracy, users generally get used to this product design within a day or two. Examples of split keyboards include The Kinesis FreestyleTM Adjustable Split and the Microsoft Natural Ergonomic Keyboard 4000.
Tented keyboards are another one of the popular ergonomic keyboards to choose. Going one step further, computer workstations with these keyboards aim to correct ulnar deviation by moving the two halves of the keyboard toward the elbows to correct a non-neutral joint position called "pronation." With pronation, the hands are rotated inward toward the thumbs, with the forearms twisted. Tented keyboards allow users to work with the palms angled toward each other to reduce fatigue, shifting tendons, strained ligaments and twisted nerves. Some people say these keyboards have moderate advantages over conventional keyboards, although it takes longer for people to adjust to tented keyboards than split keyboards. On the downside, critics say that visibility of the keys is diminished with some designs. Additionally, these thicker keyboards may require additional arm support. Examples of tented keyboards include the ErgoMagic 3-Piece Split & Tented Keyboard and the GoldTouch Adjustable Keyboard.
Choosing between the different types of ergonomic keyboards can be tricky since so much depends upon personal preference, but Consumer Reports rates the Microsoft Natural Ergonomic Keyboard 4000 as the "Best Ergonomic Product Design" in the category. This design received positive reviews at consumer site www.amazon.com, as well as www.pcmag.com, www.maximumpc.com and www.everythingusb.com. In their report, they wrote, "The Microsoft Natural Ergonomic Keyboard 4000 is engineered to reduce hand and wrist stress, allowing users to type in a more natural position. The keys in the middle are elevated higher than the keys at the side, so your hands rest at a less stressful angle. The keyboard uses a QWERTY layout with easily visible keys. An interesting zoom feature lets you enlarge the text on parts of a page. Some other ergonomic keyboards range in price from $100 to $400, so the Natural Ergonomic Keyboard 4000 is a relative bargain."
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