The current study compares biomechanical and productivity outcomesrelated to the use of a Klockenburg (split and angled) style keyboard as opposedto the use of a standard PC 101 style keyboard among office workers. The studyused 10 subjects (5 male and 5 female) who were employees of a largeinsurance company. Subjects were categorized by job classification, including 5exempt and 5 nonexempt employees. Each subject was evaluated on both of thekeyboards in a laboratory setting after three weeks of familiarization with thekeyboards at their workstation. Productivity was measured as words per minute.In the lab, biomechanical outcomes included angular measures of forearmpronation/supination, wrist flexion/extension, wrist radial/ulnar deviation and neckangle. Lab results showed that the Klockenburg keyboard negatively impactedproductivity and neck posture, while forearm pronation/supination and wristradial/ulnar deviation were in more neutral positions. There was no significantdifference in wrist extension between the two keyboards. In the field, theKlockenburg keyboard did not impact productivity.
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