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Fig. 1 | BioMedical Engineering OnLine

Fig. 1

From: Microneurography as a tool to develop decoding algorithms for peripheral neuro-controlled hand prostheses

Fig. 1

Efferent microneurography experimental setup. a The microneurography electrodes inserted by the neurologist (left) and the echographic image of the active one (right). b Example of execution of isotonic and isokinetic tasks. c, d The sEMG and MNG recorded from Subj. 3 (left, cylindrical grasp, isotonic task) and Subj. 1 (right, middle finger interphalangeal joint flexion, isokinetic task): normalized sEMG of flexor digitorum (red), abductor/flexor/opponens pollicis (orange), flexor pollicis longus (violet), second and third finger lombricals (green), normalized MNG (blue). e Normalized envelope of the neural and muscular activities during a cylindrical grasp (isotonic task) and a middle finger interphalangeal joint flexion (isokinetic task). Data are extracted from Subject 1. f Correlation between microneurographic and muscular recordings, over all the participants and tasks. Data are expressed as mean ± SEM. Number of repetitions is equal to 73, 58, 61, 60, 76, 57 respectively for Subj. 1, Subj. 2, …, Subj. 6, extracted from isotonic and isokinetic tasks

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