Figure 3: Measurement conditions: we compared four conditions with the use of two pressure sensors at the heel and fifth metatarsal (right): (i) without auditory feedback but with prosthesis, called “without” condition; (ii) auditory feedback from only the heel sensor, called “heel” condition; (iii) auditory feedback from only the fifth metatarsal sensor, called “fifth” condition; and (iv) auditory feedback from both the heel and fifth metatarsal sensors, called “all” condition. These four conditions were conducted in a random order.