Journal
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
Volume 59, Issue 7, Pages 1804-1807Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2012.2197210
Keywords
Artificial neural network; intramuscular EMG; proportional control; simultaneous force
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Funding
- Danish Agency for Science, Technology and Innovation (Council for Independent Research Technology and Production Sciences) [10-080813]
- European Research Council Advanced Grant DEMOVE [267888]
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This letter investigates simultaneous and proportional estimation of force in 2 degree-of-freedoms (DoFs) from intramuscular electromyography (EMG). Intramuscular EMG signals from three able-bodied subjects were recorded along with isometric forces in multiple DoF from the right arm. The association between five EMG features and force profiles was modeled using an artificial neural network. Correlation coefficients between the measured and the estimated forces were 0.85 +/- 0.056 and 0.88 +/- 0.05 without and with post processing, respectively. The results showed that force can be estimated in 2 DoFs with high accuracy and that the degree of performance depended on the force function (task) to be estimated.
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