Effects of negatively sloped keyboard wedges on risk factors for upper extremity work-related musculoskeletal disorders and user performance
Article Abstract:
The effects of negative keyboard angles on objective physiological and subjective measures were examined in addition to the user performance including the forearm muscle activity and perceived discomfort. The analysis suggests that the suitable angle varies with the individual, though the lower angles provide various postural benefits, reduces muscle activity and improves the typing performance in comparison to the standard keyboard.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 2005
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Effects of psychosocial and individual factors on physiological risk factors for upper extremity musculoskeletal disorders while typing
Article Abstract:
The extent to which mental workload and time pressure affect the perception of workload as well as the physiological responses of the distal upper extremity were quantified in a study undertaken to understand how work-related musculoskeletal disorder (WMSD) developed. Results established the causal connection between upper extremity WMSD and psychosocial risk factors.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 2007
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Effect of horizontal position of the computer keyboard on upper extremity posture and muscular load during computer work
Article Abstract:
A study hypothesizes that the wrist approaches more of a neutral posture as the keyboard distance from the edge of the work surface increases, requiring less ulnar deviation and forearm muscle activity.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 2007
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