PMC5532391_01
PMC5532391_02
The flow of a usability test.
fnbot-11-00036-g001.jpg
PMC5532391_02_fnbot-11-00036-g001.jpg
F1
The experimental instruments used in this part of the study consisted of the rehabilitation device, video cameras, still image cameras, digital voice recorders, questionnaires, and observational recording forms (Figure 1).