Effect of IMU location on estimation of vertical ground reaction force during jumping

Frontiers in Bioengineering and Biotechnology

Bioengineering and Biotechnology

Pietro S. Perez¹  Reed D. Gurchiek¹  Jordan A. Kerns¹  Andrew S. Zwart¹  Jeffrey M. McBride² 

[1] Neuromuscular and Biomechanics Laboratory, Department of Public Health and Exercise Science, Appalachian State University, Boone, NC, United States;null;

关键词: center of mass;    acceleration;    sacrum;    velocity;    power;   

DOI  :  10.3389/fbioe.2023.1112866

 received in 2022-11-30, accepted in 2023-03-10,  发布年份 2023

来源: Frontiers

【 摘 要 】

Introduction: Several investigations have examined utilizing inertial measurement units (IMU) to estimate ground reaction force (GRF) during exercise. The purpose of this investigation was to determine the effect of inertial measurement units location on the estimation of ground reaction force during vertical jumping.Methods: Eight male subjects completed a series of ten countermovement jumps on a force plate (FP). The subjects had an inertial measurement units attached to the sacrum, back and chest. Ground reaction force was estimated from data from the individual inertial measurement units and by using a two-segment model and combined sensor approach.Results: The peak ground reaction force values for the sacrum, back, chest and combined inertial measurement units were 1,792 ± 278 N, 1,850 ± 341 N, 2,054 ± 346 N and 1,812 ± 323 N, respectively. The sacral inertial measurement units achieved the smallest differences for ground reaction force estimates providing a root mean square error (RMSE) between 88 N and 360 N. The inertial measurement units on the sacrum also showed significant correlations in peak ground reaction force (p < 0.001) and average ground reaction force (p < 0.001) using the Bland-Altman 95% Limits of Agreement (LOA) when in comparison to the force plate.Discussion: Based on assessment of bias, Limits of Agreement, and RMSE, the inertial measurement units located on the sacrum appears to be the best placement to estimate both peak and average ground reaction force during jumping.

【 授权许可】

Unknown   
Copyright © 2023 Kerns, Zwart, Perez, Gurchiek and McBride.