Table 2.
Comparison of RobottDCS and RobotSham kinematic and kinetic metrics at admission, discharge, and follow-up for the shoulder-elbow
| SHOULDER-ELBOW | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Admission | Discharge | Follow-up | ||||||||
| Robotic Task | Metric | RobottDCS mean (SD) | RobotSham mean (SD) | Group Comparison (P value) | RobottDCS mean (SD) | RobotSham mean (SD) | Group Comparison (P value) | RobottDCS mean (SD) | RobotSham mean (SD) | Group Comparison (P value) |
| Unconstrained trained reaching (macro-metrics) | Deviation (m) | .030 (.032) | .030 (.028) | .511 | .024 (.031) | .021 (.023) | .519 | .027 (.033) | .022 (.023) | .437 |
| Mean Speed (m/s) | .084 (.050) | .081 (.034) | .540 | .094 (.047) | .091 (.032) | .464 | .103 (.086) | .093 (.031) | .372 | |
| Speed shape | .487 (.067) | .500 (.079) | .218 | .526 (.077) | .531 (.069) | .401 | .526 (.076) | .532 (.064) | .322 | |
| Jerk (m/s3) | 112.927 (300.934) | 76.191 (203.966) | .824 | 58.847 (156.297) | 33.952 (22.507) | .639 | 85.173 (250.909) | 35.645 (36.063) | .415 | |
| Unconstrained trained reaching (micro-metrics) | Sub-movement number | 8.148 (3.774) | 7.267 (3.850) | .080 | 6.995 (3.535) | 6.811 (3.584) | .391 | 6.634 (2.819) | 6.390 (2.831) | .298 |
| Sub-movement duration (s) | .556 (.170) | .0554 (.131) | .607 | .589 (.138) | .622 (.114) | .143 | .597 (.127) | .610 (.128) | .322 | |
| Sub-movement overlap (s) | .266 (.080) | .261 (.066) | .763 | .283 (.067) | .293 (.051) | .414 | .289 (.057) | .294 (.060) | .326 | |
| Unconstrained untrained circle drawing | Circle ratio | .662 (.247) | .667 (.231) | .578 | .738 (.241) | .767 (.190) | .410 | .698 (.232) | .751 (.181) | .166 |
| Joint independence | .634 (.220) | .598 (.196) | .264 | .551 (.198) | .494 (.151) | .168 | .572 (.206) | .520 (.179) | .175 | |
| Minor axis (m) | .105 (.050) | .103 (.044) | .611 | .118 (.045) | .122 (.038) | .414 | .110 (.046) | .117 (.038) | .212 | |
| Reaching against resistance | Maximum displacement (m) | .109 (.033) | .102 (.037) | .733 | .114 (.032) | .113 (.030) | .647 | .111 (.030) | .113 (.029) | .567 |
| Overall aim (radians) | .292 (.311) | .310 (.304) | .603 | .244 (.313) | .213 (.274) | .230 | .249 (.286) | .199 (.199) | .314 | |
| Maximum displacement (m) | .109 (.033) | .102 (.037) | .733 | .114 (.032) | .113 (.030) | .647 | .111 (.030) | .113 (.029) | .567 | |
| Isometric stabilization | Scatter (m) | .023 (.010) | .021 (.010) | .190 | .021 (.011) | .018 (.011) | .116 | .020 (.011) | .018 (.011) | .178 |
| Offset (m) | .038 (.020) | .032 (.017) | .110 | .034 (.020) | .028 (.015) | .171 | .032 (.018) | .029 (.017) | .215 | |
| Shoulder-elbow kinetic evaluation | Shoulder strength (N) | 33.353 (24.787) | 34.182 (20.111) | .233 | 38.925 (27.531) | 38.979 (23.207) | .326 | 37.613 (23.337) | 38.325 (23.954) | .482 |
Note: * indicates significance at p < 0.0167