| Patients who undertook the task | Patients who completed the task successfully |
---|---|---|
1. Hyperventilation | 17 | 9 |
2. Shaking head | 10 | 3 |
3. Putting head between legs | 5 | 4 |
4. Step-ups | 11 | 5 |
5. Holding breath | 15 | 6 |
6. Body tension | 5 | 0 |
7. Spinning | 15 | 8 |
8. Breathing through a straw | 14 | 4 |
9. Chest breathing | 12 | 8 |