The F-wave fingerprint of amyotrophic lateral sclerosis

• Autor(es): Carvalho, Mamede
• Data: 2025
• Identificador Persistente: http://hdl.handle.net/10400.5/101075
• Origem: Repositório da Universidade de Lisboa
• Assunto(s): Amyotrophic lateral sclerosis; CMAP amplitude; F-waves; Neurophysiological index
• Tipo de Documento: Artigo científico
• Idioma: Inglês
• Contribuidor(es): Repositório Científico de Acesso Aberto da ULisboa

Descrição

Initially detailed by Magladery and McDougal, F-waves are late responses resulting from the antidromic activation of motor axons distally, causing a recurrent discharge of spinal motoneurons. These waves are readily elicited and best recorded from small muscles in the hands and feet. Conversely, F-wave responses in proximal muscles often have latencies too close to M-waves, complicating accurate identification.