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Kinematic plots with and without the guide. The x axis indicates the position of the crank arm and the y axis indicates the degrees of motion. Abbreviations: Abd, abduction; Add, adduction; Df, dorsiflexion; ER, external rotation; Flex, flexion; IR, internal rotation; Pf, plantarflexion; TD, typically developing; Val, valgus; Var, varus.
