Kinematic analysis of flexion/extension movements
| Movements | Synergistic movement | Nonsynergistic movement |
|---|---|---|
| Mean ± SD (mean intrasubject SD ± SD) | Mean ± SD (mean intrasubject SD ± SD) | |
| Thumb amplitude (cm) | 9.8 ± 1.2 (1.41 ± 0.50) | 10.3 ± 2.6 (1.71 ± 0.67) |
| Thumb extension velocity (cm/sec) | 39.5 ± 10.5 (5.65 ± 2.02) | 40.9 ± 8.8 (6.85 ± 2.70) |
| Thumb flexion velocity (cm/sec) | 38.7 ± 11.3 (6.67 ± 2.36) | 43.6 ± 9.9 (8.52 ± 2.28) |
| Index amplitude (cm) | 15.0 ± 2.6 (1.87 ± 0.65) | 15.7 ± 2.1 (2.25 ± 1.13) |
| Index extension velocity (cm/sec) | 74.4 ± 23.8 (7.49 ± 2.62) | 76.8 ± 20.5 (9.79 ± 4.52) |
| Index flexion velocity (cm/sec) | 70.2 ± 22.6 (7.69 ± 1.86) | 78.6 ± 20.1 (9.54 ± 4.68) |
Group average (and SD) of the kinematic data from the eight subjects who participated in the fMRI scanning. In each person, 10 consecutive movement cycles were recorded and analyzed at the end of the training (immediately before the fMRI was conducted). There were no significant differences between any of the parameters (or the SD) in the two conditions (p > 0.05, paired ttests, without correction for multiple comparisons).