Evaluation of Muscle Recruitment by High-Density Electromyography with Navigated Transcranial Magnetic Stimulation

• Grant number: 12/11937-0
• Support Opportunities: Scholarships in Brazil - Master
• Start date: September 01, 2012
• End date: February 28, 2014
• Field of knowledge: Health Sciences - Medicine
• Principal Investigator: Oswaldo Baffa Filho
• Grantee: Victor Hugo de Oliveira e Souza
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

Developments in transcranial magnetic stimulation (TMS) procedures have raised questions about the physical characterization of interactions between biological systems and equipment. Surface electromyography, with pairs of electrodes, used to measure the evoked potential in most of experimental protocols do not express the overall pattern of muscle activation. Employing a neuronavigation software and a system of high density surface electromyography (HDsEMG), this project aims to describe the relationship between the orientation of the TMS coil while applying the pulse, and the recruitment of abductor policis brevis motor units. The main goal is to contribute to a better understanding of how different orientations of the electromagnetic fields generated by the stimulation device interfere with motor evoked potentials, calling attention to another parameter to be observed in procedures involving the technique of TMS.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOUZA, VICTOR HUGO; BAFFA, OSWALDO; GARCIA, MARCO A. C.. Lateralized asymmetries in distribution of muscular evoked responses: An evidence of specialized motor control over an intrinsic hand muscle. Brain Research, v. 1684, p. 60-66, APR 1 2018. (12/11937-0)

SOUZA, VICTOR HUGO; MATSUDA, RENAN H.; PERES, ANDRE S. C.; AMORIM, PAULO HENRIQUE J.; MORAES, THIAGO F.; SILVA, JORGE VICENTE L.; BAFFA, OSWALDO. Development and characterization of the InVesalius Navigator software for navigated transcranial magnetic stimulation. JOURNAL OF NEUROSCIENCE METHODS, v. 309, p. 109-120, NOV 1 2018. (09/09064-6, 12/11937-0)

SOUZA, VICTOR HUGO; VIEIRA, TAIAN MARTINS; CUNHA PERESA, ANDRE SALLES; CAVALCANTI GARCIA, MARCO ANTONIO; VARGAS, CLAUDIA DOMINGUES; BAFFA, OSWALDO. Effect of TMS coil orientation on the spatial distribution of motor evoked potentials in an intrinsic hand muscle. BIOMEDICAL ENGINEERING-BIOMEDIZINISCHE TECHNIK, v. 63, n. 6, p. 635-645, DEC 2018. (12/11937-0, 13/07699-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SOUZA, Victor Hugo de Oliveira e. Evaluation of the effects of transcranial magnetic stimulation coil orientation on motor evoked potentials of abductor pollicis brevis by high density electromyography. 2014. Master's Dissertation - Universidade de São Paulo (USP). Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (PCARP/BC) Ribeirão Preto.