Fig. 6
From: System identification: a feasible, reliable and valid way to quantify upper limb motor impairments
Correlation between parameters extracted using the Re-Arm and system identification protocol, only data from the include patients is used: a synergy vs. \({k}_{slope}\); b spasticity vs. \({k}_{100,\mathrm{DNI}}\) and c viscoelasticity vs. \({k}_{100,\mathrm{DNI }}.\) Significant, weak to moderate, correlations were found between the Re-Arm parameters and corresponding stiffness parameters extracted using system identification