Table 1. EMG activity of FDS and ED muscle regions and forces exerted by the fingers during the static and dynamic phases of the task (means ± SD).
| Resistance Force | Finger | Activity FDS (%MVC) | Activity ED (%MVC) | Force (N) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Static Phase†+ (%) | Dynamic Phase# (%) | Difference (%) | Static Phase† (%) | Dynamic Phase# (%) | Difference (%) | Static Phase† (N) | Dynamic Phase# (N) | Difference (N) | ||
| 4N | Index | 10.9±3.4 | 15.6±5.3 | 3.7±2.9 | 6.9±3.7 | 6.8±3.9 | -0.9±0.9 | 4.3±0.1 | 4.3±0.21 | -0.0±0.6 |
| Middle | 13.2±5.7 | 15.1±7.6 | 1.9±4.1 | 5.3±4.1 | 4.9±4 | 0.7±1.2 | 0.3±0.2 | 1.3±0.41 | 0.86±0.3 | |
| Ring | 6.8±3.6 | 7.2±3.6 | 0.7±0.9 | 4.7±3.4 | 4.9±3.9 | 0.7±0.7 | 0.15±0.2 | 0.43±0.2 | 0.27±0.1 | |
| Little | * | * | * | * | * | * | 0.1±0.0 | 0.31±0.1 | 0.21±0.2 | |
| 6N | Index | 13.6±3.8 | 18.6±7.7 | 4.9±3.3 | 7.3±2.7 | 10.0±6.1 | 2.7±4 | 6.2±0.4 | 6.5±0.2 | 0.4±0.5 |
| Middle | 16.3±5.8 | 21.5±15.3 | 5.2±7.3 | 4.4±3.2 | 5.7±4.2 | 1.5±1.7 | 0.6±0.5 | 1.8±0.6 | 1.2±0.4 | |
| Ring | 8.0±3.6 | 10.9±7.8 | 2.9±5.3 | 4.4±2.6 | 7.5±7.3 | 3.1±5.4 | 0.3±0.2 | 0.7±0.3 | 0.4±0.2 | |
| Little | * | * | * | * | * | * | 0.2±0.1 | 0.5±0.3 | 0.26±0.3 | |
| 8N | Index | 19.1±6.7 | 23.9±7.8 | 4.8±6.8 | 9.5±5.7 | 12±7.8 | 3.3±4.6 | 8.1±0.1 | 8.2±0.4 | -0.1±0.4 |
| Middle | 20.9±8 | 25.7±15.9 | 4.8±10.4 | 5.7±3.1 | 7.1±5.1 | 1.4±3.2 | 0.75±0.6 | 2.1±1 | 1.4±0.9 | |
| Ring | 11.9±10.2 | 12.2±6.54' | 0.2±5.2 | 6.4±5.9 | 8.0±6.2 | 2.2±4.0 | 0.34±0.3 | 0.8±0.4 | 0.4±0.2 | |
| Little | * | * | * | * | * | * | 0.2±0.2 | 0.6±0.3 | 0.3±0.2 | |
* EMGs of little finger was not measured
† Averaged during the phase
# The value at the end of phase