Table 1 ANOVA statistics, in each anatomical region, for the main effects of material and metatarsal bar location and also for the interaction. Both the F-statistic and associated p-value have been reported. In addition, the 95% confidence intervals, and associated p-values, for the pairwise comparisons are included. Note that these p-values have been adjusted using a Bonferroni correction for multiple comparisons. All statistical differences (p < 0.05) have been marked with an*

Metatarsal bar location

F = 0.4, p = 0.655

F = 5.9, p < 0.003*

F = 0.9, p = 0.426

F = 3.2, p = 0.043*

Proximal vs middle

(−5.8, 12.8), p = 1.0

(−8.1, 10.9), p = 1.0

(−6.2, 2.7), p = 0.997

(−3.1, 11.4), p = 0.499

middle vs distal

(−16.4, 9.6), p = 1.0

(−27.2, 1.0), p = 0.031*

(−3.3, 8.3), p = 0.875

(−16.9, −0.2), p = 0.042*

Distal vs proximal

(−9.2, 9.1), p = 1.0

(2.4, 23), p = 0.011*

(−4.8, 3.4), p = 1.0

(−4.8, 13.6), p = 0.719

Material

F = 31.3, p < 0.001*

F = 41.4, p < 0.001*

F = 9.9, p < 0.001*

F = 0.03, p = 970

EVA vs Poron

(−2.09, 7.7), p = 0.48

(−4.2, 4.4), p = 1.0

(−3.3, 3.2), p = 1.0

(−5.6, 5.1), p = 1.0

Poron vs void

(−29.2, −11.9), p < 0.001*

(− 26.4, − 11.9), p < 0.001*

(−10.5, − 1.5), p = 0.005*

(− 5.5, 6.7), p = 1.0

Void vs EVA

(9.3, 23.2), p < 0.001*

(13.1, 24.9) P < 0.001*

(2.3, 9.9), p = 0.001*

(−6, 5.4), p = 1.0

Interaction

F = 0.4, p = 0.818

F = 0.5, p = 0.754

F = 1.4, p = 0.220

F = 0.6, p = 0.696