Combined Phase and Magnitude Metric for Validation of Lower Limb Multibody Dynamics Muscle Action with sEMG

• Type: Article in International Conference Proceedings Book
• Date: 2019

Authors

Carlos Rodrigues (Author) Other; Miguel Correia (Author) FEUP; João Abrantes (Author) Other; Jurandir Nadal (Author) Other; Marco Benedetti (Author) Other

Conference proceedings International

Title: WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING 2018, VOL 2

Pages: 517-521

IUPESM World Congress on Medical Physics and Biomedical Engineering

Prague, CZECH REPUBLIC, JUN 03-08, 2018

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Other information

Authenticus ID: P-00P-SWJ

DOI: 10.1007/978-981-10-9038-7_95

Abstract (EN): This study presents and applies combined phase and magnitude metrics for validation of multibody dynamics (MBD) estimated muscle actions with simultaneous registered sEMG of lower limb muscles. Subject-specific tests were performed for acquisition of ground reaction forces and kinematic data from joint reflective markers during NG, SKG and SR. Inverse kinematics and dynamics was performed using AnyBody musculoskeletal personalized modeling and simulation. MBD estimated muscle activity (MA) of soleus medialis (SM) and tibialis anterior (TA) were compared on phase, magnitude and combined metric with simultaneous acquisition of sEMG for the same muscles. Results from quantitative metrics presented better agreement between MDB MA and sEMG on phase (P) than on magnitude (M) with combined (C) metric following the same pattern as the magnitude. Soleus medialis presented for specific subject lower P and M error on NG and SKG than at SR with similar P errors for tibialis anterior and higher error on M for TA at NG and SKG than SR. Separately and combined quantitative metrics of phase and magnitude presents as a suitable tool for comparing measured sEMG and MBD estimated muscle activities, contributing to overcome qualitative and subjective comparisons, need for intensive observer supervision, low reproducibility and time consuming.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5