NDLI: Exploring the human grip force system: A preliminary study

Content Provider	IEEE Xplore Digital Library
Author	Villasenor-Herrera, Alejandro De Serres, Sophie J. Wagner, Ross Kearney, Robert E.
Copyright Year	2008
Description	Author affiliation: School of Physical and Occupational Therapy, McGill University, Montreal, QC H3A 2B4, Canada (De Serres, Sophie J.) \|\| Department of Biomedical Engineering, McGill University, Montreal, QC H3A 2B4, Canada (Villasenor-Herrera, Alejandro; Wagner, Ross; Kearney, Robert E.)
Abstract	It has been postulated that cutaneo-receptors from the digits contribute to the control of manipulatory functions of the hand. However, few studies have examined the dynamics of the human grip force system (HGFS) in terms of the dynamic relationship between the vertical loads, taken as an input and the resulting grip force, taken as the output. This paper describes the experimental procedures we have developed to explore the HGFS and presents some initial experimental results. These demonstrate that the step response of the HGFS is biphasic. The first, short latency phase, likely involves only passive and intrinsic components. The second, longer latency phase is likely related to reflex mechanisms since it is preceded by a strong burst of EMG. Moreover, the HGFS response depended nonlinearly on the amplitude and direction of the load applied. These results indicate that further investigation of HGFS dynamics will require the use of nonlinear identification methods.
Starting Page	5362
Ending Page	5365
File Size	567817
Page Count	4
File Format	PDF
ISBN	9781424418145
ISSN	1557170X
DOI	10.1109/IEMBS.2008.4650426
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-20
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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