Abstract:
Stroke patients often have flexor hypertonia and finger extensor weakness, which makes it difficult to open their affected hand for functional grasp. Because of this impa...Show MoreMetadata
Abstract:
Stroke patients often have flexor hypertonia and finger extensor weakness, which makes it difficult to open their affected hand for functional grasp. Because of this impairment, hand rehabilitation after stroke is essential for restoring functional independent lifestyles. The goal of this study is to develop a passive, lightweight, wearable device to assist with hand function during performance of activities of daily living. The device, Hand Spring Operated Movement Enhancer (HandSOME), assists with opening the patient's hand using a series of elastic cords that apply extension torques to the finger joints and compensates for the flexor hypertonia. Device design and calibration are described as well as functional and usability testing with stroke subjects with a wide range of hand impairments. In initial testing with eight stroke subjects with finger flexor hypertonia, use of the HandSOME significantly increased range of motion (p <; 0.001) and functional ability (p=0.002) . There was some decrease in grip strength with the HandSOME device at the subject's ideal setting, however this was not statistically significant (p=0.167) and did not seem to have a significant effect on function. Overall HandSOME shows promise as a training tool to facilitate repetitive task practice for improving hand function in stroke patients. HandSOME can be used as part of a home-based therapy program, or as an orthotic for replacing lost function.
Published in: IEEE Transactions on Neural Systems and Rehabilitation Engineering ( Volume: 19, Issue: 4, August 2011)
Catholic University of America, Washington D.C., DC, USA
National Rehabilitation Hospital, Washington D.C., DC, USA
Elizabeth B. Brokaw (S'10) received the B.S. degree in biological resources engineering from the University of Maryland, College Park, in 2008, and the M.S. degree in biomedical engineering, in 2009, from The Catholic University of America, Washington, DC, where she is currently a Ph.D. candidate in the same program.
Elizabeth B. Brokaw (S'10) received the B.S. degree in biological resources engineering from the University of Maryland, College Park, in 2008, and the M.S. degree in biomedical engineering, in 2009, from The Catholic University of America, Washington, DC, where she is currently a Ph.D. candidate in the same program.View more
National Rehabilitation Hospital, Washington D.C., DC, USA
Iian Black received the B.S. degree in biomedical engineering from the University of California, Berkley, in 1996, and the M.S. degree in biomedical engineering from The Catholic University of America, Washington, DC, in 2004.
He is currently a Research Engineer at the National Rehabilitation Hospital, Washington, DC.
Iian Black received the B.S. degree in biomedical engineering from the University of California, Berkley, in 1996, and the M.S. degree in biomedical engineering from The Catholic University of America, Washington, DC, in 2004.
He is currently a Research Engineer at the National Rehabilitation Hospital, Washington, DC.View more
National Rehabilitation Hospital, Washington D.C., DC, USA
Rahsaan J. Holley received the B.S. degree in psychology from The City University of New York, Brooklyn College, in 1998, and the M.S. degree in occupational therapy from Columbia University, in 2000.
He is currently a Research Occupational Therapist at the National Rehabilitation Hospital, Washington, DC.
Rahsaan J. Holley received the B.S. degree in psychology from The City University of New York, Brooklyn College, in 1998, and the M.S. degree in occupational therapy from Columbia University, in 2000.
He is currently a Research Occupational Therapist at the National Rehabilitation Hospital, Washington, DC.View more
National Rehabilitation Hospital, Washington D.C., DC, USA
Peter S. Lum (M'09) received the B.S. degree in mechanical engineering from George Washington University, Washington, DC, in 1987, the M.S. degree in applied mechanics from the California Institute of Technology, Pasadena, in 1988, and the Ph.D. degree in bioengineering from a joint program between the University of California at San Francisco and Berkley, in 1993.
He is currently an Associate Professor in the Biomedical E...Show More
Peter S. Lum (M'09) received the B.S. degree in mechanical engineering from George Washington University, Washington, DC, in 1987, the M.S. degree in applied mechanics from the California Institute of Technology, Pasadena, in 1988, and the Ph.D. degree in bioengineering from a joint program between the University of California at San Francisco and Berkley, in 1993.
He is currently an Associate Professor in the Biomedical E...View more
Contents Catholic University of America, Washington D.C., DC, USA
National Rehabilitation Hospital, Washington D.C., DC, USA
Elizabeth B. Brokaw (S'10) received the B.S. degree in biological resources engineering from the University of Maryland, College Park, in 2008, and the M.S. degree in biomedical engineering, in 2009, from The Catholic University of America, Washington, DC, where she is currently a Ph.D. candidate in the same program.
Elizabeth B. Brokaw (S'10) received the B.S. degree in biological resources engineering from the University of Maryland, College Park, in 2008, and the M.S. degree in biomedical engineering, in 2009, from The Catholic University of America, Washington, DC, where she is currently a Ph.D. candidate in the same program.View more
National Rehabilitation Hospital, Washington D.C., DC, USA
Iian Black received the B.S. degree in biomedical engineering from the University of California, Berkley, in 1996, and the M.S. degree in biomedical engineering from The Catholic University of America, Washington, DC, in 2004.
He is currently a Research Engineer at the National Rehabilitation Hospital, Washington, DC.
Iian Black received the B.S. degree in biomedical engineering from the University of California, Berkley, in 1996, and the M.S. degree in biomedical engineering from The Catholic University of America, Washington, DC, in 2004.
He is currently a Research Engineer at the National Rehabilitation Hospital, Washington, DC.View more
National Rehabilitation Hospital, Washington D.C., DC, USA
Rahsaan J. Holley received the B.S. degree in psychology from The City University of New York, Brooklyn College, in 1998, and the M.S. degree in occupational therapy from Columbia University, in 2000.
He is currently a Research Occupational Therapist at the National Rehabilitation Hospital, Washington, DC.
Rahsaan J. Holley received the B.S. degree in psychology from The City University of New York, Brooklyn College, in 1998, and the M.S. degree in occupational therapy from Columbia University, in 2000.
He is currently a Research Occupational Therapist at the National Rehabilitation Hospital, Washington, DC.View more
National Rehabilitation Hospital, Washington D.C., DC, USA
Peter S. Lum (M'09) received the B.S. degree in mechanical engineering from George Washington University, Washington, DC, in 1987, the M.S. degree in applied mechanics from the California Institute of Technology, Pasadena, in 1988, and the Ph.D. degree in bioengineering from a joint program between the University of California at San Francisco and Berkley, in 1993.
He is currently an Associate Professor in the Biomedical Engineering Department at The Catholic University of America, Washington, DC. He is also a Research Health Scientist at the Washington DC Veterans Affairs Medical Center and the Director of the Center for Applied Biomechanics and Rehabilitation Research (CABRR) at the National Rehabilitation Hospital, Washington, DC.
Peter S. Lum (M'09) received the B.S. degree in mechanical engineering from George Washington University, Washington, DC, in 1987, the M.S. degree in applied mechanics from the California Institute of Technology, Pasadena, in 1988, and the Ph.D. degree in bioengineering from a joint program between the University of California at San Francisco and Berkley, in 1993.
He is currently an Associate Professor in the Biomedical Engineering Department at The Catholic University of America, Washington, DC. He is also a Research Health Scientist at the Washington DC Veterans Affairs Medical Center and the Director of the Center for Applied Biomechanics and Rehabilitation Research (CABRR) at the National Rehabilitation Hospital, Washington, DC.View more
