Effect of four computer keyboards in computer users with upper extremity musculoskeletal disorders
| Autor: | Pat Tittiranonda, Thomas J. Armstrong, Stephen Burastero, David Rempel |
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| Rok vydání: | 1999 |
| Předmět: |
medicine.medical_specialty
Placebo Hand pain Placebo group 050105 experimental psychology law.invention Physical medicine and rehabilitation Randomized controlled trial law medicine 0501 psychology and cognitive sciences Carpal tunnel syndrome 050107 human factors Medical Assisting and Transcription Hand function business.industry 05 social sciences Public Health Environmental and Occupational Health Human factors and ergonomics Computer terminal Computer users medicine.disease Medical Terminology Pain severity Physical therapy Tendinopathy business |
| Zdroj: | American Journal of Industrial Medicine. 35:647-661 |
| ISSN: | 1097-0274 0271-3586 |
| Popis: | Eighty computer users with musculoskeletal disorders participated in a six-month, randomized, placebo-controlled trial evaluating the effects of four computer keyboards on clinical findings, pain severity, functional hand status, and comfort. The alternative geometry keyboards tested were: the Apple Adjustable Keyboard™ [kb1], Comfort Keyboard System™ [kb2], Microsoft Natural Keyboard™ [kb3] and placebo. Compared to placebo, kb3 and to a lesser extent kb1 groups demonstrated an improving trend in pain severity and hand function following six months of keyboard use. However, there was no corresponding consistent improvement in clinical findings in the alternative geometry keyboard groups compared to the placebo group. Overall, there was a significant correlation between improvement of pain severity and greater satisfaction with the keyboards. These results provide evidence that keyboard users may experience a reduction in hand pain after several months of use of some alternative geometry keyboards. |
| Databáze: | OpenAIRE |
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