Table 2.
Key-press sequences centered on each digit and change in postural index
| Thumb (1) |
Index (2) |
Middle (3) |
Ring (4) |
Little (5) |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fi−1 | Fi | Fi+1 | ΔPI | Fi−1 | Fi | Fi+1 | ΔPI | Fi−1 | Fi | Fi+1 | ΔPI | Fi−1 | Fi | Fi+1 | ΔPI | Fi−1 | Fi | Fi+1 | ΔPI |
| 2 | 1 | 2 | 0 | 1 | 2 | 3 | 1 | 1 | 3 | 1 | 1 | 1 | 4 | 1 | 1 | 1 | 5 | 1 | −1 |
| 2 | 1 | 2 | 0 | 1 | 2 | 3 | −2 | 1 | 3 | 2 | −3 | 1 | 4 | 3 | 1 | 1 | 5 | 2 | 0 |
| 2 | 1 | 2 | 0 | 1 | 2 | 3 | −2 | 1 | 3 | 4 | 6 | 1 | 4 | 3 | −5 | 1 | 5 | 2 | 1 |
| 2 | 1 | 2 | 0 | 1 | 2 | 4 | −2 | 1 | 3 | 5 | 0 | 1 | 4 | 3 | 1 | 1 | 5 | 3 | 6 |
| 2 | 1 | 3 | −1 | 1 | 2 | 4 | 0 | 2 | 3 | 1 | 0 | 1 | 4 | 3 | −5 | 1 | 5 | 3 | 5 |
| 2 | 1 | 3 | −6 | 1 | 2 | 5 | 0 | 2 | 3 | 2 | 0 | 1 | 4 | 3 | 1 | 2 | 5 | 1 | 0 |
| 2 | 1 | 4 | −3 | 3 | 2 | 1 | 2 | 2 | 3 | 4 | −1 | 1 | 4 | 3 | 6 | 2 | 5 | 2 | 0 |
| 2 | 1 | 4 | 3 | 3 | 2 | 1 | 2 | 2 | 3 | 4 | 0 | 2 | 4 | 1 | 1 | 2 | 5 | 3 | 0 |
| 2 | 1 | 4 | −3 | 3 | 2 | 1 | 2 | 2 | 3 | 4 | 0 | 2 | 4 | 1 | −5 | 3 | 5 | 2 | 0 |
| 2 | 1 | 4 | 3 | 3 | 2 | 1 | 2 | 2 | 3 | 4 | 0 | 2 | 4 | 2 | 0 | 3 | 5 | 3 | 0 |
| 2 | 1 | 4 | −3 | 3 | 2 | 1 | 2 | 4 | 3 | 2 | 0 | 2 | 4 | 5 | 1 | 3 | 5 | 4 | −1 |
| 2 | 1 | 4 | −8 | 3 | 2 | 1 | 1 | 4 | 3 | 2 | 0 | 2 | 4 | 5 | 0 | 4 | 5 | 2 | 1 |
| 2 | 1 | 5 | −4 | 3 | 2 | 1 | 2 | 4 | 3 | 2 | 0 | 3 | 4 | 1 | −6 | 4 | 5 | 3 | 0 |
| 3 | 1 | 2 | 0 | 3 | 2 | 1 | 2 | 4 | 3 | 2 | 0 | 3 | 4 | 2 | 1 | 4 | 5 | 3 | 1 |
| 3 | 1 | 5 | −6 | 3 | 2 | 1 | 1 | 4 | 3 | 2 | 0 | 3 | 4 | 2 | 0 | 4 | 5 | 3 | 1 |
| 4 | 1 | 2 | 8 | 3 | 2 | 3 | 0 | 4 | 3 | 2 | 0 | 3 | 4 | 3 | 0 | ||||
| 4 | 1 | 3 | 8 | 3 | 2 | 3 | 0 | 4 | 3 | 2 | 0 | 3 | 4 | 3 | 0 | ||||
| 4 | 1 | 5 | −1 | 3 | 2 | 4 | 0 | 4 | 3 | 4 | 0 | 3 | 4 | 5 | 0 | ||||
| 4 | 1 | 5 | −4 | 3 | 2 | 4 | 0 | 5 | 3 | 1 | 0 | 5 | 4 | 5 | 0 | ||||
| 5 | 1 | 3 | 6 | 4 | 2 | 1 | −1 | 5 | 3 | 2 | −2 | ||||||||
| 5 | 1 | 4 | 0 | 4 | 2 | 1 | 2 | 5 | 3 | 4 | 0 | ||||||||
| 5 | 1 | 5 | 0 | 5 | 2 | 1 | 0 | 5 | 3 | 5 | 0 | ||||||||
| 5 | 2 | 1 | −2 | 5 | 3 | 5 | 0 | ||||||||||||
| 5 | 2 | 4 | 0 | ||||||||||||||||
| 5 | 2 | 4 | 0 | ||||||||||||||||
| 5 | 2 | 5 | 0 | ||||||||||||||||
| 5 | 2 | 5 | 0 | ||||||||||||||||
Fi, digit number performing the ith key press in the sequence; ΔPI, change in postural index. Significant burst-fit subset is in bold.