title: Real-time simulation of hand motion for prosthesis control.
abstract: Individuals with hand amputation suffer substantial loss of independence. Performance of sophisticated prostheses is limited by the ability to control them. To achieve natural and simultaneous control of all wrist and hand motions, we propose to use real-time biomechanical simulation to map between residual EMG and motions of the intact hand. Here we describe a musculoskeletal model of the hand using only extrinsic muscles to determine whether real-time performance is possible. Simulation is 1.3 times faster than real time, but the model is locally unstable. Methods are discussed to increase stability and make this approach suitable for prosthesis control.
authors.affiliation: a Institute for Science and Technology in Medicine , Keele University , Keele , UK .
authors.forename: Dimitra
authors.initials: D
authors.lastname: Blana
authors.affiliation: a Institute for Science and Technology in Medicine , Keele University , Keele , UK .
authors.forename: Edward K
authors.initials: EK
authors.lastname: Chadwick
authors.affiliation: b Mechanical Engineering Department , Cleveland State University , Cleveland , OH , USA .
authors.forename: Antonie J
authors.initials: AJ
authors.lastname: van den Bogert
authors.affiliation: c Departments of Biomedical Engineering, Physical Medicine and Rehabilitation, and Physical Therapy and Human Movement Sciences , Northwestern University , Chicago , IL , USA .|d Sensory Motor Performance Program , Rehabilitation Institute of Chicago , Chicago , IL , USA .|e Research Service, Edward Hines , Jr. VA Hospital , Hines , IL , USA .
authors.forename: Wendy M
authors.initials: WM
authors.lastname: Murray
mesh_terms: D001186:Artificial Limbs; D003198:Computer Simulation; D004576:Electromyography / Q000379:methods; D006225:Hand / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D009038:Motion; D009132:Muscles / Q000502:physiology; D011187:Posture; D011474:Prosthesis Design; D019919:Prosthesis Implantation; D012813:Sign Language
keywords: Musculoskeletal modelling; forward dynamics; hand; prosthetics