Denny-Brown and Pennybacker: 80 years after their pioneering article on electromyography, fibrillation and fasciculation

We present a historical review, highlighting the role of Professor Derek Denny-Brown and doctor Joseph Buford Pennybacker in the development of current electromyography (EMG), of the 80 years since the publication of his original report in 1938 on fasciculation and fibrillation potentials and the subsequent studies describing most of the electrical changes necessary to perform and interpret the EMG.

Keywords:
Electromyography; Neuromuscular Diseases

Authorship

Otto Jesus HERNANDEZ FUSTES

Universidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Serviço de Doenças Neuromusculares, Curitiba PR, Brazil.Universidade Federal do ParanáBrazilCuritiba, PR, BrazilUniversidade Federal do Paraná, Hospital de Clínicas, Departamento de Clínica Médica, Serviço de Neurologia, Serviço de Doenças Neuromusculares, Curitiba PR, Brazil.

http://orcid.org/0000-0003-0778-5376

Cláudia Suemi Kamoi KAY

http://orcid.org/0000-0003-0173-0809

Paulo José LORENZONI

http://orcid.org/0000-0002-4457-7771

Renata Dal-Prá DUCCI

http://orcid.org/0000-0002-1673-5074

Lineu Cesar WERNECK

http://orcid.org/0000-0003-1921-1038

Rosana Herminia SCOLA

http://orcid.org/0000-0002-3957-5317

Correspondence: Otto Jesus Hernandez Fustes; E-mail: otto.fustes@hc.ufpr.br

Conflict of interest: There is no conflict of interest to declare.

Authors’ contribution: Hernandez Fustes OJ: conceptualization, data curation, investigation, methodology, formal analysis, project administration, roles/writing - original draft. Kay CSK: conceptualization, data curation, formal analysis, investigation, methodology, validation, visualization, project administration, roles/writing. Lorenzoni PJ: conceptualization, data curation, formal analysis, investigation, methodology, roles/writing. Ducci RDP: conceptualization, data curation, formal analysis, investigation, methodology, roles/writing. Werneck LC: conceptualization, validation, visualization, supervision, writing - review & edit. Scola RH: conceptualization, validation, visualization, formal analysis, project administration, supervision, writing - review & edit.

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Figures (2)

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Figure 1.
Mechanical and electrical recordo f fibrillation in M. soleus, cat, nine days after section of sciatic nerve. From Denny-Brown D, Pennybacker JB. Fibrillation and fasciculation in voluntary muscle. Brain. 1938 Sep;61(3):311-34. Reprinted with permission of Oxford University Press and Copyright Clearance Center.

Thumbnail

Figure 2.
Left pectoral muscle of patient suffering from amyotrophic lateral sclerosis with coarse fibrillation. Mechanical (M) and electrical record € of a fasciculus of the muscle. From Denny-Brown D, Pennybacker JB. Fibrillation and fasciculation in voluntary muscle. Brain. 1938 Sep;61(3):311-34. Reprinted with permission of Oxford University Press and Copyright Clearance Center.

Figure 1. Mechanical and electrical recordo f fibrillation in M. soleus, cat, nine days after section of sciatic nerve. From Denny-Brown D, Pennybacker JB. Fibrillation and fasciculation in voluntary muscle. Brain. 1938 Sep;61(3):311-34. Reprinted with permission of Oxford University Press and Copyright Clearance Center.

Figure 2. Left pectoral muscle of patient suffering from amyotrophic lateral sclerosis with coarse fibrillation. Mechanical (M) and electrical record € of a fasciculus of the muscle. From Denny-Brown D, Pennybacker JB. Fibrillation and fasciculation in voluntary muscle. Brain. 1938 Sep;61(3):311-34. Reprinted with permission of Oxford University Press and Copyright Clearance Center.

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Denny-Brown and Pennybacker: 80 years after their pioneering article on electromyography, fibrillation and fasciculation

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[1] Correspondence: Otto Jesus Hernandez Fustes; E-mail: otto.fustes@hc.ufpr.br