Fig. 5
From: Can an insole for obese individuals maintain the arch of the foot against repeated hyper loading?
Time-dependent change in BAI in the normal, obese, and insole groups. Coordinate points represent mean change; bars represent 95% confidence intervals (a). BAI decreases significantly over time in all three groups (normal group, P = 0.0021; obese group, P < 0.001; insole group, P < 0.001)(A). The dashed line indicates the diagnostic criterion for low arch (BAI less than 0.21). § indicates BAI significantly lower than 0.21. The representive results of inflection point which indicates that the point of second to third deformity stage by approximate by 3-order eq. (b). The inflection point of obese group (mean, 6500 cycle; SD, 547.7) was significantly earlier than that of Insole group (mean, 7833 cycle; SD, 753) (P = 0.0145) (c)