Is barefoot regional plantar loading related to self-reported foot pain in patients with midfoot osteoarthritis  S. Rao, J.F. Baumhauer, D.A. Nawoczenski 

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Is barefoot regional plantar loading related to self-reported foot pain in patients with midfoot osteoarthritis  S. Rao, J.F. Baumhauer, D.A. Nawoczenski  Osteoarthritis and Cartilage  Volume 19, Issue 8, Pages 1019-1025 (August 2011) DOI: 10.1016/j.joca.2011.04.006 Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

Fig. 1 Weight bearing lateral radiograph depicting calcaneal-first metatarsal angle, used to characterize medial longitudinal arch alignment. Osteoarthritis and Cartilage 2011 19, 1019-1025DOI: (10.1016/j.joca.2011.04.006) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

Fig. 2 (Top) Graph depicting adequacy index (ordinate) vs number of clusters (abscissa) indicating that the two-cluster solution is appropriate. (Bottom) Bivariate scatter plots showing two-cluster solution obtained using the following features: average pressure in heel (h_avgp), medial midfoot (mmid_avgp), lateral midfoot (lmid_avgp), medial forefoot (mfore_avgp), lateral forefoot (lfo_avgp), great toe (halx_avgp). Osteoarthritis and Cartilage 2011 19, 1019-1025DOI: (10.1016/j.joca.2011.04.006) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions

Supplementary Figure 1: Representative stance phase peak pressure indicates higher pressures (pink, red and yellow areas) in the patient with midfoot arthritis on the right, compared to the lower loads or unloaded areas (blue and green areas) in the control subject on the left. Osteoarthritis and Cartilage 2011 19, 1019-1025DOI: (10.1016/j.joca.2011.04.006) Copyright © 2011 Osteoarthritis Research Society International Terms and Conditions