A comparative study of virtual hand prosthesis control using an inductive tongue control system

Summary, in English

This study compares the time required to activate a grasp or function of a hand prosthesis when using an electromyogram (EMG) based control scheme and when using a control scheme combining EMG and control signals from an inductive tongue control system (ITCS). Using a cross-over study design, 10 able-bodied subjects used a computer model of a hand and completed simulated grasping exercises. The time required to activate grasps was recorded and analyzed for both control schemes. End session mean activation times (ATs; seconds) for the EMG control scheme grasps 1 -5 were 0.80, 1.51, 1.95, 2.93, and 3.42; for the ITCS control scheme grasps 1 5 they were 1.19, 1.89, 1.75, 2.26, and 1.80. Mean AT for grasps 1 and 2 was statistically significant in favor of the EMG control scheme (p = 0.030; p = 0.004). For grasp 3 no statistical significance occurred, and for grasps 4 and 5 there was a statistical significance in favour of the ITCS control scheme (p = 0.048; p = 0.004). Based on the amount of training and the achieved level of performance, it is concluded that the proposed ITCS control scheme can be used as a means of enhancing prosthesis control.

• Author: Daniel Johansen; Fredrik Sebelius; Stig Jensen; Bo Bentsen; Dejan B. Popović; Lotte N S Andreasen Struijk
• Department/s: Department of Biomedical Engineering
• Publishing year: 2016-01-02
• Language: English
• Pages: 22-29
• Publication/Series: Assistive Technology
• Volume: 28
• Issue: 1
• Links: http://dx.doi.org/10.1080/10400435.2015.1070303
• Document type: Journal article
• Publisher: Routledge
• Topic: Biomedical Laboratory Science/Technology
• Keywords: Myoelectric control; Prosthesis control schemes; Upper limb prosthetics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1040-0435