TL;DR
- The results of our study show that positioning the keyboard with a downward slope did not lead to an increase in the muscle activity of the wrist extensors. This could reduce the pain and discomfort that some people experience while typing.
- The narrow ranges of mean typing speeds (66.1–66.9 wpm) and 100% accuracy for all the keyboard slopes indicate to us that subjects quickly adapted to new keyboard slope angles, even after only 3 minutes of practice.
- The assessments of ease of use and comfort show that the keyboard with a slope of −15 degrees was rated least comfortable and most difficult to use of all the keyboards tested.