Table 2.

Usability test of the mixed reality-based rehabilitation board (MR-board) in eight domains.

Component	Question	Score
Specification	Was the size, height, depth, and width of the MR-board appropriate?	4.5 ± 0.71
Weight	Was the weight of the device and objects appropriate?	4.2 ± 0.79
Manipulation	Was it convenient to adjust the components of the device?	4.8 ± 0.63
Safety	Is the MR-board safe and robust to use?	5.0 ± 0.00
Durability	Do you think the MR-board will be available for a long time?	4.5 ± 0.71
User friendliness	Was the MR-board easy to use?	4.6 ± 0.84
Comfort	Was it comfortable to use the MR-board?	5.0 ± 0.00
Effectiveness	Was the MR-board helpful for upper limb rehabilitation?	4.0 ± 0.67
Total average		4.58 ± 0.54

The test was rated on a 5-point scale ranging from 1 (very dissatisfied) to 5 (very satisfied).

Data are presented as mean ± standard deviation.