Fig. 2From: Lateral wedges with and without custom arch support for people with medial knee osteoarthritis and pronated feet: an exploratory randomized crossover studyAssessment of treatment and period effects for Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain a and physical function subscales b. Lower scores indicate less knee pain and physical dysfunction. Dotted lines indicate mean values for participants receiving the lateral wedges alone first, followed by the lateral wedges plus arch support; solid lines indicate mean values for participants receiving the lateral wedges plus arch support first, followed by the lateral wedges aloneBack to article page