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For the past 50 years, there has been increasing recognition and evidence that long hours of key-board use are associated with hand, arm, shoulder, and neck pain and upper body musculoskeletal disorders (Gerr, Monteilh, & Marcus, 2006). These problems are related to work organizational issues (e.g., hours of computer use per day, job de-mands) as well as sustained awkward postures, such as shoulder elevation, wrist ulnar deviation, and head rotation. Some of these postural demands, such as ulnar deviation, wrist extension, forearm pronation, and shoulder abduction, are related to the design of the conventional, straight keyboard. There has been a long-standing interest in deter-mining whether the split keyboard designs reduc