Table of Contents
Introduction to Computer Ergonomics.
Workplace Injuries (Bureau of Labor Statistics, 1996)
Cumulative Trauma Disorders (CTDs) and Carpal Tunnel Syndrome (CTS).
Upper limb anatomy
Upper limb anatomy
Hand anatomy
Wrist anatomy
Tendon structure
PPT Slide
Cumulative Trauma Disorders (CTDs)
PPT Slide
Does repetition and force matter? (Byl et al., Physical Therapy, 77(3), 269-284, 1997)
Ergonomic Keyboard Design Issues
Keyboards: Ergonomic Design Issues
Sholes & Glidden Type-Writer
QWERTY Keyboard Layout
Dvorak Keyboard
Dvorak Keyboard Layout
QWERTY vs. Dvorak? (Hales & Sauter, 1996)
Postural Risks of Computer Use
Typing Posture
Typing vs. Keyboarding
Deviated Typing Posture (ëYuppie hunchí)
Keyboard/mouse locations
Ergonomic Workcenters?
Ergonomic Offices?
Hand posture: Lateral deviations
Lateral Deviation and ICP (Rempel, 1992)
PPT Slide
Wrist Posture and Keyboard Design
Wrist Posture and Keyboard Design
Ergonomic Keyboard Design?
Hand posture: Vertical deviations
Vertical Deviation and ICP (Honan et al., 1995)
Keyboard Posture (Serina et al., 1999)
Neutral Zone of Hand Movement (Hedge, 1998)
Fixed-Angle Split Keyboard Study (Hedge & Ng, 1995)
Alternative keyboard arrangements
Standard vs. Split Keyboards (Honan et al., 1995)
Typing Hand Posture
Effects of Wrist-rests (Parsons, 1991)
Effects of Wrist-rest Design (Paul and Menon, 1994)
Effects of Wrist-rest on ICP (Horie et al.,1993)
Problem solved?
Keyboard on Desk
Keyboard on Lowered Tray
PPT Slide
Cornell/Honeywell Study (Hedge et al., 1999)
PPT Slide
PPT Slide
Cornell/Honeywell Study (Hedge et al., 1999)
Tiltdown Keyboard System
PPT Slide
PPT Slide
Growth of Mouse Use
Deviated Mouse Use Posture
Wrist Posture and Mouse Use
Trackball vs. Mouse?
Wrist Posture and Mouse Use
Wrist posture and Mouse Use (Damann & Kroemer, 1995)
Does mouse design matter?
Mousing Hand Posture (Cornell Study, 1999)
Wrist posture and Mouse Use (Cornell Study, 1999)
Shoulder Posture and Mouse Use
Shoulder Posture and Mouse Use
Shoulder Posture and Mouse Use
Shoulder Posture and Mouse Use
Shoulder Posture and Mouse Use
Shoulder Posture and Mouse Use
Ideal Mouse Locations
Ergonomic Research Summary
Ergonomic Seating Myths
Neutral Working Posture
Cornell Ergonomics Web (CUErgo)
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