Table 1.
Group differences and baseline values
| RT (ms | VMx93 (m/s) | MT9 (ms) | Pin200 (g) | Pin200SD (g) | PinMx (kg) | TongMx (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | ND | D | ND | D | ND | D | ND | D | ND | D | ND | ||
| Baseline mean (SD) | |||||||||||||
| Control | 246 (46) | 240 (47) | 0.63 (.22) | 0.56 (.14) | 180 (44) | 169 (70) | 206 (7.5) | 204 (5.4) | 7 | 5 | 6.1 (1.5) | 6.2 (1.6) | 1.3 (0.5) |
| PD | 236 (67) | 257 (73) | 0.62 (.21) | 0.61 (.21) | 222 (106) | 234 (79) | 199 (9) | 202 (13) | 11 | 8 | 6.9 (2.0) | 6.9 (2.0) | 0.9 (0.3) |
| Group Effect | |||||||||||||
| t | 1.20 | 2.34 | 0.12 | −1.00 | 2.70 | −3.20 | −2.40 | −0.70 | 0.80 | 1.00 | 0.53 | 0.37 | −3.31 |
| P | 0.12 | 0.01* | 0.45 | 0.15 | 0.004** | <0.0001*** | 0.01* | 0.24 | 0.20 | 0.13 | 0.47 | 0.35 | <0.0001*** |
Model type 1: Motor variable = 1 + Group + Age + Gender ± Age*Group + Random(Subject) + I. Outcome variables are listed across the top. After building each model, a contrast for the covariate of interest (group, age, or gender) was applied to derive the t-statistics and P-values; degrees of freedom = 104.
P = 0.01–0.05
P = 0.001–0.009
P <0.001.
Abbreviations and variables: D, dominant hand; MT9, time from movement onset to peak velocity when reaching to the 9-inch target; ND, non-dominant hand; Pin200, mean force accuracy for 200 g target; Pin200SD, measured standard deviation in Pin200; PinMx, maximum pinch strength; RT, reaction time; TongMx, maximum tongue protrusion strength; VMx93, maximum instantaneous movement velocity scaling to reach distance (peak velocity for 9-inch reach [~22.9 cm] – peak velocity for 3-inch reach [~7.6 cm]).