Izvorni znanstveni članak
https://doi.org/10.30765/er.3406
Experimental validation of a torso-mounted inertial sensor system for human balance and motion assessment
Marko Čeredar
; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
*
Aleksandar Sušić
; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
Bruno Dogančić
; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia
Martina Lovrenić-Jugović
; Faculty of Metallurgy, University of Zagreb, Sisak, Croatia
* Dopisni autor.
Sažetak
Wearable inertial measurement units (IMUs) provide a mobile and cost-effective alternative to laboratory motion analysis and are increasingly used in Industry 4.0 for ergonomic assessment, workload evaluation, and biomimetic modelling in human–robot interaction. However, the validity of IMU-based body centre of mass (CoM) estimation depends on sensor configuration. This pilot technical validation study evaluates agreement between an upper-torso- and upper-extremities mounted IMU and a pedobarographic platform during quasi-static standing with controlled torso rotation. Lateral and sagittal CoM displacements were compared using RMSE, correlation coefficient, area-under-curve (AUC) difference, and frequency-domain analysis. Higher agreement was observed in the left–right direction (RMSE = 1.514 cm, r = 0.851), suggesting that the partial IMU setup may be suitable for monitoring lateral torso sway relevant to balance and postural load under quasi-static conditions. In the forward–backward direction, agreement was low (r = 0.488) due to the absence of lower-limb motion capture. Results demonstrate both the potential and limitations of partial IMU setups for ergonomic monitoring and task optimization in industrial environments.
Ključne riječi
centre of mass estimation; ergonomic assessment; industry 4.0; motion validation; wearable inertial sensors (IMU)
Hrčak ID:
350089
URI
Datum izdavanja:
4.8.2026.
Posjeta: 0 *