LONGITUDINAL STUDY OF THE EFFECTS OF AN ADJUSTABLE ERGONOMIC KEYBOARD ONUPPER BODY MUSCULOSKELETAL SYMPTOMS

摘要

A longitudinal study assessed the differential impact of standard and adjustablernergonomic keyboards on musculoskeletal symptoms among 71 computer users over arnsix month period. A total of 73 subjects participated: 34 subjects used a standard, flatrnkeyboard and 37 used an adjustable, ergonomic keyboard. Subjects completedrnweekly surveys of perceived keyboard comfort, and body discomfort, along withrnother items. The ergonomic keyboard was rated favorably and for users there werernsignificantly improvements neck, shoulder and arm comfort.