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Further observations on the relationship of EMG and muscle forceHuman skeletal muscle may be regarded as an electro-mechanical transducer. Its physiological input is a neural signal originating at the alpha motoneurons in the spinal cord and its output is force and muscle contraction, these both being dependent on the external load. Some experimental data taken during voluntary efforts around the ankle joint and by direct electrical stimulation of the nerve are described. Some of these experiments are simulated by an analog model, the input of which is recorded physiological soleus muscle EMG. The output is simulated foot torque. Limitations of a linear model and effect of some nonlinearities are discussed.
Document ID
19730001390
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Agarwal, G. C.
(Illinois Univ. Chicago, IL, United States)
Cecchini, L. R.
(Illinois Univ. Chicago, IL, United States)
Gottlieb, G. L.
(Illinois Univ. Chicago, IL, United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Publication Information
Publication: NASA, Washington 7th Ann. Conf. on Manual Control
Subject Category
Biotechnology
Accession Number
73N10117
Funding Number(s)
CONTRACT_GRANT: NSF GK-17581
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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