Fig. 4
From: A portable system to measure knee extensor spasticity after spinal cord injury
Correlations. A, B Device agreement between IMU and optical tracking system in control (A) and SCI (B) individuals. C, D Test–retest reliability of the average FSA measurements obtained on Day 1 and Day 2 in control (C) and SCI (D) individuals. The solid line represents equality between the two measurements. Each dot represents the average FSA measurement obtained on one limb for one individual