A non-invasive air-mediated sensory feedback system embedded in the prosthesis socket.

Group description: Individuals with acquired forearm amputation.

The sensory feedback system used was a simple non-invasive, non-electronic system based on air-mediated pressure. A silicone glove with bulbs (35 mm in length) volar in every fingertip was made and applied on a VariPlus Speed hand (OttoBock), size 7¾.

The sensory feedback system was embedded in the prosthetic socket.

An observational assessment where you rate the subjects' capacity of myoelectric control in a bimanual activity. The scoring was made by an experienced external rater.

21 questions about sensory feedback from the prosthesis, agency, body ownership, performance in activity and phantom limb pain. Self-administered estimation on a 7 grade Likert-scale.

A objective measurement of body ownership. The subject are asked to mark on a ruler, with the hand prosthesis hidden, where they estimate the location of the prosthetic index finger.