Motion control of the rabbit ankle joint with a flat interface nerve electrode

Muscle & Nerve
Hyunjoo Park, D M Durand

Abstract

A flat interface nerve electrode (FINE) has been shown to improve fascicular and subfascicular selectivity. A recently developed novel control algorithm for FINE was applied to motion control of the rabbit ankle. A 14-contact FINE was placed on the rabbit sciatic nerve (n=8), and ankle joint motion was controlled for sinusoidal trajectories and filtered random trajectories. To this end, a real time controller was implemented with a multiple-channel current stimulus isolator. The performance test results showed good tracking performance of rabbit ankle joint motion for filtered random trajectories and sinusoidal trajectories (0.5Hz and 1.0Hz) with less than 10% average root-mean-square (RMS) tracking error, while the average range of ankle joint motion was between -20.0° ± 9.3° and 18.1° ± 8.8°. The proposed control algorithm enables the use of a multiple contact nerve electrode for motion trajectory tracking control of musculoskeletal systems. This article is protected by copyright. All rights reserved.

References

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Citations

Mar 3, 2018·Journal of Neural Engineering·Keum-Shik HongUsman Ghafoor
Oct 25, 2017·Neurosurgical Review·Ronald SahyouniHarrison W Lin
Mar 23, 2021·Journal of Neural Engineering·Valentina PaggiStéphanie P Lacour

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