Mechanomyographic Analysis for Muscle Activity Assessment during a Load-Lifting Task - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Sensors Année : 2023

Mechanomyographic Analysis for Muscle Activity Assessment during a Load-Lifting Task

Matthieu Correa
Maxime Projetti
  • Fonction : Auteur

Résumé

The purpose of this study was to compare electromyographic (EMG) with mechanomyographic (MMG) recordings during isometric conditions, and during a simulated load-lifting task. Twenty-two males (age: 25.5 ± 5.3 years) first performed maximal voluntary contractions (MVC) and submaximal isometric contractions of upper limb muscles at 25%, 50% and 75% MVC. Participants then executed repetitions of a functional activity simulating a load-lifting task above shoulder level, at 25%, 50% and 75% of their maximum activity (based on MVC). The low-frequency part of the accelerometer signal (<5 Hz) was used to segment the six phases of the motion. EMG and MMG were both recorded during the entire experimental procedure. Root mean square (RMS) and mean power frequency (MPF) were selected as signal extraction features. During isometric contractions, EMG and MMG exhibited similar repeatability scores. They also shared similar RMS vs. force relationship, with RMS increasing to 75% MVC and plateauing to 100%. MPF decreased with increasing force to 75% MVC. In dynamic condition, RMSMMG exhibited higher sensitivity to changes in load than RMSEMG. These results confirm the feasibility of MMG measurements to be used during functional activities outside the laboratory. It opens new perspectives for future applications in sports science, ergonomics and human–machine interface conception.
Fichier principal
Vignette du fichier
Correa et al 2023.pdf (1016.66 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04448990 , version 1 (09-02-2024)

Licence

Paternité

Identifiants

Citer

Matthieu Correa, Maxime Projetti, Isabelle A. Siegler, Nicolas Vignais. Mechanomyographic Analysis for Muscle Activity Assessment during a Load-Lifting Task. Sensors, 2023, 23 (18), pp.7969. ⟨10.3390/s23187969⟩. ⟨hal-04448990⟩
4 Consultations
5 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More