PTA Physical Therapy Assistant

Answer: D - University of California biomechanics laboratory inset (UCBL) is used in the shoe for a flexible flat foot.

University of California biomechanics laboratory inset (UCBL) is a semi-rigid, plastic mold over a plaster model of the foot. It gives medial force to the calcaneus and lateral upward force to the medial portion of the midfoot.

Concave relief is used for painful heel.

Metatarsal pad is the convexity that glued to the inner sole so that its apex is under the metatarsal shaft. It helps to spread the transverse arch.

Viscoelatic materials are used to reduce the impact.