Parkinsonian Rigidity Shows Variable Properties Depending on the Elbow Joint Angle
Figure 3
Results for elastic coefficients in elbow flexion and extension for each of distal and proximal phase. Comparison between the elastic coefficient in (a) the distal phase of flexion (10–60°), (b) the proximal phase of flexion (60–110°), (c) the distal phase of extension (10–60°), and (d) the proximal phase of extension (60–110°) and the UPDRS rigidity score. The elastic coefficient in the distal phase of extension showed the best correlation () and demonstrated a significant difference between the UPDRS rigidity score 0 group and 1 group, whereas other three elastic coefficients did not show a significant difference between the groups.
