title: Development and evaluation of a assistive computer interface by SEMG for individuals with spinal cord injuries.
abstract: We developed an alternative computer interface using surface electromyography (sEMG) for individuals with spinal cord injuries (SCI) to access a computer. We designed this interface to make a cursor move on a two-dimensional screen and to click using only three muscles: the extensor carpi radialis (R-ECR) and extensor carpi ulnaris (R-ECU) of the right forearm and the extensor carpi radialis (L-ECR) of the left forearm. In addition, a user can voluntarily control cursor movement speed by modulating muscle contraction levels. One SCI patient and 5 healthy subjects volunteered to evaluate the performance of this interface using Fitts' law test in a two-dimensional testing setup. The throughputs (TP) of our interface were 0.2604 b/s for the SCI patient and 0.4295 ± 0.0600 b/s for the healthy subjects. This interface could help SCI patients handle a wider range of activities such as browsing the Internet and communicating with others.
authors.affiliation: Future IT Research Center, Samsung Advanced Institute of Technology (SAIT), Yongin, Republic of Korea. cm7.choi@samsung.com
authors.forename: Changmok
authors.initials: C
authors.lastname: Choi
authors.forename: ByeongCheol
authors.initials: B
authors.lastname: Rim
authors.forename: Jung
authors.initials: J
authors.lastname: Kim
mesh_terms: D000328:Adult; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D013119:Spinal Cord Injuries / Q000534:rehabilitation*; D014584:User-Computer Interface; D055815:Young Adult