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In general, ergonomic keyboards are designed to keep the user's arms and wrists in a near-neutral position, which means the slant angle (the lateral rotation angle for the keys in each half relative to the axis of the home row in a conventional keyboard) is approximately 10 to 12.5°, the slope (the angle of the keytop surfaces starting from the front edge closer to the user towards the top of ...
For instance, typing on a conventional keyboard layout can force the user into shoulder elevation, wrist ulnar deviation, and head rotation. [4]: 385 Consideration of physical ergonomics suggests the most relaxed typing position is one in which the keyboard user's forearms are parallel to the ground, with wrists held straight. To facilitate ...
The Kinesis Advantage keyboard Kinesis is a company based near Seattle that offers computer keyboards with ergonomic designs as alternatives to the traditional keyboard design. Most widely known among these are the contoured Advantage line, which features recessed keys in two bucket-like hollows to allow the user's fingers to reach keys with ...
The use of a keyboard may cause serious injury (such as carpal tunnel syndrome or other repetitive strain injuries) to the hands, wrists, arms, neck or back. [19] The risks of injuries can be reduced by taking frequent short breaks to get up and walk around a couple of times every hour.
Therapy for notalgia paresthetica is directed at controlling symptoms, as no cure exists for the condition. Available treatments include local anesthetics, topical capsaicin, [6] [7] topical corticosteroids, [8] hydroxyzine, oxcarbazepine, palmitoylethanolamide and gabapentin. Paravertebral nerve block and botulinum toxin injections may also be ...
The Type Cover 2 is thinner and features back-lit keys. [5] With the release of the Surface Pro 3 , a newer cover called the Surface Pro 3 Type Cover was released to fit the bigger screen. The Surface Pro 3 Type Cover features a second magnetized strip that can be rested against the screen to prop the keyboard up at an angle.
There are several options of treatment when iatrogenic (i.e., caused by the surgeon) spinal accessory nerve damage is noted during surgery. For example, during a functional neck dissection that injures the spinal accessory nerve, injury prompts the surgeon to cautiously preserve branches of C2, C3, and C4 spinal nerves that provide supplemental innervation to the trapezius muscle. [3]
In live performances, multiple electronic keyboards could be played together at one time, each by one musician, forming a keyboard ensemble. Keyboard ensembles are mostly performed within a band on an elaborate stage, while some can even serve as a simpler substitute to the more conventional orchestra , replacing stringed and wind instruments .