Neural Plasticity / 2023 / Article / Tab 2 / Research Article
Premotor and Posterior Parietal Cortex Activity is Increased for Slow, as well as Fast Walking Poststroke: An fNIRS Study Table 2 Linear mixed-effects models results.
ROI Predictors Estimates Confidence interval p ICC N subj Observations Marginal R 2 /conditional R 2 (a). Aim 1: laterality index ∼ condition + (1|participant) PFC (Intercept) 0.057449 −0.167247–0.282145 0.610 0.74 20 60 0.011/0.739 Condition (FAST ) −0.114453 −0.277834–0.0489273 0.166 Condition (SLOW ) −0.004908 −0.168288–0.158473 0.952 PMC (Intercept) 0.053142 −0.191337–0.297621 0.665 0.73 20 60 0.020/0.737 Condition (FAST ) −0.149032 −0.328234–0.030171 0.101 Condition (SLOW ) 0.027203 −0.152000–0.206405 0.762 SMC (Intercept) 0.164832 −0.115489–0.445153 0.243 0.72 18 54 0.001/0.720 Condition (FAST ) −0.054382 −0.264360–0.155596 0.605 Condition (SLOW ) −0.022304 −0.232282–0.187674 0.832 PPC (Intercept) −0.002626 −0.231353–0.226100 0.982 0.51 19 57 0.003/0.516 Condition (FAST ) −0.007294 −0.232649–0.218060 0.948 Condition (SLOW ) 0.049297 −0.176058–0.274652 0.663 (b). Aim 2: HbO ∼ condition + Hemisphere + (1|participant) and HbO ∼ condition + (1|participant) PFC (Intercept) 0.091497 −0.006430–0.189424 0.067 0.34 20 801 0.011/0.345 Condition (FAST ) 0.033987 −0.014290–0.082264 0.167 Condition (SLOW ) 0.000406 −0.047871–0.048683 0.987 Hemisphere (ipsi) 0.067867 0.027958–0.107776 0.001 PMC (Intercept) 0.048776 −0.059401–0.156953 0.376 0.38 20 636 0.007/0.383 Condition (FAST ) 0.069844 0.013942–0.125746 0.014 Condition (SLOW ) 0.060211 0.004309–0.116113 0.035 SMC Intercept) 0.089338 −0.018620–0.197295 0.105 0.37 20 441 0.003/0.375 Condition (FAST ) 0.044168 −0.021419–0.109755 0.186 Condition (SLOW ) 0.004477 −0.061110–0.070063 0.893 PPC (Intercept) 0.001145 −0.111003–0.113293 0.984 0.32 19 471 0.016/0.332 Condition (FAST ) 0.119288 0.048082–0.190495 0.001 Condition (SLOW ) 0.077668 0.006462–0.148875 0.033
Note : Predictors indicate the fixed effects levels within the variables in the model. Reference level was the
NORM condition and the contralesional hemisphere, when applicable. Estimates indicate the difference between the reference level and the predictor level. Italic
p -values indicate a significant difference at alpha of 0.05.
Indicates significant differences with
(0.05/4: Bonferroni correction for four models). PFC = prefrontal cortex; PMC = premotor cortex; SMC = sensorimotor cortex; PPC = posterior parietal cortex; ipsi = ipsilesional hemisphere.