Table 1.
The experimental trial comprised of seven object interaction
| Interaction number& type | Target object | Object start location | Reach the object with | Grasp the object from | Manipulate the object by | Object target location |
|---|---|---|---|---|---|---|
| 1; BI-SYNC | Pipe (horizontal) | Shelf 3; | Synchronously bilaterally | Above; palmar grip | Rotating it to vertical orientation | Shelf 2; Position 3 |
| 2; BI-ASYNC | Ball | Shelf 1; Position 2 | Sound hand unilaterally | Above; palmar grip | Rotating it 180° and handing it over to the prosthesis | Shelf 2; Position 2 |
| 3; BI-ASYNC | Box | Shelf 1; Position 1 | Sound hand unilaterally | Side; palmar grip | Handing it over to the prosthesis | Shelf 2; Position 1 |
| 4; BI-SYNC | Tray | Shelf 3; | Synchronously bilaterally | Below; lateral grip | – | Shelf 4; |
| 5; BI-SYNC | Pipe (vertical) | Shelf 2; Position 3 | Synchronously bilaterally | Side; palmar grip | – | Shelf 1; Position 3 |
| 6; UNI (hand) | Ball | Shelf 2; Position 2 | Sound hand unilaterally | Above; palmar grip | – | Shelf 1; Position 2 |
| 7; UNI (prosthesis) | Box | Shelf 2; Position 1 | Prosthesis unilaterally | Side; palmar grip | Rotating it to horizontal orientation | Shelf 1; Position 1 |