Table 1.
Summary of lifting performance variables in action test across all subjects
| FGF, N | dLF, N | Tcom, N·mm | Peak Roll, deg | Peak Object Velocity, cm/s | |
|---|---|---|---|---|---|
| Group 1 | |||||
| dy = 0 mm | |||||
| Active | 12.2 ± 1.2 | –5.0 ± 0.2 | –227.7 ± 4.5 | 2.0 ± 0.3 | 10.4 ± 1.0 |
| Passive | 13.3 ± 1.4 | –5.0 ± 0.3 | –225.8 ± 3.0 | 1.5 ± 0.3 | 9.3 ± 0.9 |
| dy = –10 mm | |||||
| Active | 11.3 ± 1.2 | –2.6 ± 0.3 | –222.7 ± 4.1 | 1.6 ± 0.2 | 10.1 ± 0.9 |
| Passive | 12.2 ± 1.3 | –2.1 ± 0.3 | –223.2 ± 3.2 | 1.3 ± 0.2 | 9.6 ± 1.0 |
| dy = –20 mm | |||||
| Active | 10.4 ± 1.1 | –0.1 ± 0.5 | –219.9 ± 5.7 | 1.8 ± 0.2 | 10.0 ± 0.9 |
| Passive | 11.1 ± 1.2 | 0.4 ± 0.5 | –225.0 ± 4.0 | 1.3 ± 0.3 | 9.6 ± 1.2 |
| Group 2 | |||||
| dy = –3 mm | |||||
| Active | 14.1 ± 2.4 | –4.1 ± 0.5 | –244.2 ± 9.1 | 2.6 ± 0.4 | 20.8 ± 2.7 |
| Passive | 15.5 ± 2.1 | –3.8 ± 0.5 | –242.4 ± 5.2 | 1.7 ± 0.3 | 21.3 ± 3.4 |
| dy = –6 mm | |||||
| Active | 13.9 ± 2.5 | –3.7 ± 0.4 | –236.5 ± 9.4 | 2.2 ± 0.3 | 20.1 ± 2.4 |
| Passive | 13.7 ± 2.4 | –3.2 ± 0.4 | –242.9 ± 3.6 | 1.5 ± 0.3 | 20.9 ± 3.4 |
Data are means ± SE of average grip force (FGF), load force difference (dLF), compensatory torque (Tcom), peak roll of object, and peak object velocity per vertical distance between digit center of pressure (dy) averaged across all subjects for the active and passive conditions.