Table 2.
Features of the VOAA-DDD beads and muffin tasks
| Duration Scores | Frequency scores | |
|---|---|---|
| Objective | To determine the percentage of spontaneous use of the affected arm and hand in a fixed time period | To determine the occurrence of specific motor behaviours of the affected arm and hand during different subtasks |
| Time-related | Yes | No |
| Observed motor | Use of the affected arm and hand | Reaches |
| behaviour | No use of the affected arm and hand | Grasps* |
| Holds* | ||
| Releases* | ||
| Puts back on place | ||
| Stabilizes | ||
| Shakes/pours | ||
| Pushes/pulls/shoves/rubs | ||
| Catches/carries | ||
| Manipulates | ||
| Scores | Duration beads: total % of use of the affected arm and hand related to the time for completing the beads task |
B-score: total of basic Grasps, Holds and Releases observations during the tasks |
| A-score: total of advanced Grasps, Holds and Releases observation during the beads task | ||
| V-score: total of the following behaviours during both tasks: | ||
| Duration muffin: total % of use of the affected arm and hand related to the time for completing the muffin task |
1. Stabilizes, 2. Reaches, 3. Puts back on place, 4. Shakes/pours, 5. Pushes/pulls/shoves/rubs, 6. Catches/carries, 7. Manipulates, 8. advanced Grasps, 9. advanced Holds and 10. advanced Releases | |
* With regard to the behaviours Grasps, Holds, and Releases we used both a basic (B) and an advanced (A) description for the beads task; for the muffin task we used only a basic (B) score. Criteria are related to the quality of the performance; for all active behaviours a B-score is obtained, but for higher qualitative grasping, holding and releasing an A-score can be gained. E.g. all active releasing is a B-score, but releasing with wrist extension gives an A-score.