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Novel Cost-Effective and Portable Three-Dimensional Force Measurement System for Biomechanical Analysis: A
Letian Hao1, Chao Yin1, Xiaozhe Duan1
1College of Physical Education and Health Engineering, Taiyuan University of Technology, Jinzhong 030600, China.
Sensors (Basel, Switzerland)
|January 8, 2025
Summary
A new portable 3D force measurement system from KunWei Sports Technology offers reliable biomechanical data, comparable to traditional systems. This innovation makes advanced force measurement more accessible for various sports applications.
Area of Science:
- Biomechanics
- Sports Science
- Kinetics
Background:
- Traditional laboratory force measurement systems are accurate but expensive and immobile.
- Portable force measurement platforms are needed for broader biomechanical analysis.
- Development of cost-effective and versatile force measurement solutions is ongoing.
Purpose of the Study:
- To develop and validate a portable 3D force measurement system (KunWei system).
- To assess the reliability and consistency of the KunWei system against a reference device (Bertec system).
- To evaluate the system's performance across diverse dynamic movements.
Main Methods:
- A portable 3D force measurement system was developed by Taiyuan University of Technology and KunWei Sports Technology.
- Fifteen male collegiate students performed walking, running, countermovement jump (CMJ), and side-cutting movements.
- Kinetic data were collected simultaneously using the KunWei system and a Bertec reference system; data were analyzed using t-tests, ICC, and NRMSE.
Main Results:
- No significant differences in peak force were found between the KunWei and Bertec systems (p > 0.05).
- Intraclass Correlation Coefficient (ICC) values for force-time curves exceeded 0.98.
- Normalized Root Mean Square Error (NRMSE) was below 0.165, indicating high agreement.
Conclusions:
- The KunWei portable 3D force measurement system demonstrates high consistency and reliability.
- The system provides accurate kinetic data comparable to established laboratory systems.
- This portable system expands the application of force measurement in biomechanics and sports, reducing costs.
