Fig. 5
From: Development of a single device to quantify motor impairments of the elbow: proof of concept
Two typical examples of radar charts visualization of all impairments in a single and interpretable graph. As a reference, median (light blue line) and 10–90th percentile reference intervals (dark blue line) of the controls are shown. The resulting blue area indicates no upper limb impairment. The values represent the extent of deviation of the patient (red point or line) from the 90th percentile. Both patients 2 and 7 had reduced flexion strength, slightly higher resistance during slow passive extension (Elasticity), and increased resistance during fast passive elbow extension (spasticity). Patient 7 also had reduced extension strength and maximum active elbow extension with decreasing arm support weight (abnormal synergy)