- This is a function of the increased tension generated in the long plantar fascia and contraction of the posterior tibialis muscle (See Animation below).
In the PreClinical Clubfoot Deformity, the heel
is in valgus/pronated (1). When the heel is raised
of the ground, the foot goes into varus (3). The
hyperpronation is attenuated by the action of
the long plantar fascia and posterior tibialis muscle)