Fig. 4
From: Comparison of five different methodologies for evaluating ankle–foot orthosis stiffness
Box plot of differences in measured AFO stiffness between test methods. Each method is used as a baseline and compared to each of the other test methods, where the comparison method is indicated by color (blue: EMPIRE, red: SMApp, yellow; KST, purple: BRUCE, green: HW). Positive values indiate that the baseline method is stiffer than the comparison method. The KST measured stiffnesses are larger than any of the other test fixtures while the HW measured the lowest stiffnesses