The work herein presented aimed to investigate the application of the Average Threshold Crossing (ATC) technique in the analysis of muscle synergies. The ability of the technique to approximate different modulations of the electromyographic (EMG) data was assessed via simulations. By selecting the proper threshold and window length, it was possible to obtain R2 similarity values above 0.8. This result improved by averaging the ATC envelopes over multiple epochs. The technique was also tested on real EMG data collected from 8 subjects during over ground walking. The synergies extracted using the ATC technique showed high similarity with the ones obtained with a standard approach using the EMG envelopes for both weights and temporal activations.

A novel approach to the analysis of muscle synergies based on the average threshold crossing technique / Sapienza, Stefano; Vergara-Diaz, Gloria; Fabara, Eric; Clansey, Adam; Pugliese, Benito Lorenzo; Rossi, Fabio; Demarchi, Danilo; Bonato, Paolo. - ELETTRONICO. - (2021). ((Intervento presentato al convegno 10th International IEEE EMBS Conference on Neural Engineering tenutosi a Virtual (USA) nel 4-6 May, 2021.

A novel approach to the analysis of muscle synergies based on the average threshold crossing technique

Sapienza, Stefano;Pugliese, Benito Lorenzo;Rossi, Fabio;Demarchi, Danilo;
2021

Abstract

The work herein presented aimed to investigate the application of the Average Threshold Crossing (ATC) technique in the analysis of muscle synergies. The ability of the technique to approximate different modulations of the electromyographic (EMG) data was assessed via simulations. By selecting the proper threshold and window length, it was possible to obtain R2 similarity values above 0.8. This result improved by averaging the ATC envelopes over multiple epochs. The technique was also tested on real EMG data collected from 8 subjects during over ground walking. The synergies extracted using the ATC technique showed high similarity with the ones obtained with a standard approach using the EMG envelopes for both weights and temporal activations.
File in questo prodotto:
File Dimensione Formato  
Poster NER21.pdf

accesso aperto

Descrizione: Poster published in the conference
Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 462.1 kB
Formato Adobe PDF
462.1 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2950272