Influenza dell'affaticamento muscolare sul ritardo elettromeccanico: una revisione sistematica

  • Moisés Costa do Couto Universidade Potiguar, campus Mossoró-RN
  • Georges Willeneuwe de Sousa Oliveira Universidade Potiguar - UnP. Campus Mossoró-RN
Parole chiave: Elettromiografia, Muscolo scheletrico, Accoppiamento eccitazione-contrazione

Abstract

Il ritardo elettromeccanico (REM) è la latenza tra lo stimolo nervoso e l'inizio della mobilizzazione articolare, la sua durata è correlata alla comparsa delle lesioni. Sebbene sia ampiamente studiato, non ci sono ancora studi di revisione che confermino la probabile relazione tra affaticamento muscolare e REM. Lo scopo di questa revisione è verificare l'influenza dell'affaticamento muscolare sul ritardo elettromeccanico durante le contrazioni volontarie in individui sani. Per questo, abbiamo cercato studi nei seguenti database: MEDLINE tramite PUBMED, LILACS, CINAHL, SCOPUS e WEB OF SCIENCE, utilizzando i descrittori "ritardo elettromeccanico E affaticamento muscolare". Sono stati selezionati studi sperimentali che hanno analizzato l'influenza dell'affaticamento muscolare sul ritardo elettromeccanico, non vi era alcuna restrizione per quanto riguarda il sesso o l'età del valutato, né per quanto riguarda il muscolo valutato. I risultati hanno mostrato che la stragrande maggioranza dei campioni era costituita da giovani di entrambi i sessi fino a trent'anni. La contrazione isometrica del muscolo quadricipite era il metodo principale utilizzato per valutare il REM a causa della grande predisposizione dell'articolazione del ginocchio agli infortuni. Dei diciannove studi, quindici hanno mostrato un aumento del REM dopo il protocollo di affaticamento muscolare. Ciò accade per l'influenza della fatica sui meccanismi fisiologici che provocano la REM, come, ad esempio, la perdita di tensione nelle componenti elastiche in serie e il ritardo nell'accoppiamento eccitazione-contrazione. In conclusione, è evidente che l'affaticamento muscolare aumenta la latenza del ritardo elettromeccanico durante le contrazioni muscolari volontarie in individui sani di entrambi i sessi.

Biografie autore

Moisés Costa do Couto, Universidade Potiguar, campus Mossoró-RN

Departamento de Fisioterapia.

Georges Willeneuwe de Sousa Oliveira, Universidade Potiguar - UnP. Campus Mossoró-RN

Departamento de Fisioterapia

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Pubblicato
2016-07-17
Come citare
Couto, M. C. do, & Oliveira, G. W. de S. (2016). Influenza dell’affaticamento muscolare sul ritardo elettromeccanico: una revisione sistematica. Giornale Brasiliano Di Prescrizione E Fisiologia dell’esercizio, 10(59), 361-369. Recuperato da https://www.rbpfex.com.br/index.php/rbpfex/article/view/970
Sezione
Articoli scientifici - Originali