Portable 3D Force Measurement System for Biomechanical Analysis
Author Information
Author(s): Hao Letian, Yin Chao, Duan Xiaozhe, Wang Zeyu, Zhang Meizhen
Primary Institution: Taiyuan University of Technology
Hypothesis
There will be no significant statistical difference in peak forces across all axes for the four tested movements when using the KunWei device as opposed to the Bertec system.
Conclusion
The KunWei system demonstrated high reliability and validity, showing no significant differences in peak force measurements compared to the Bertec system.
Supporting Evidence
- The ICC values for force-time curves were all above 0.98.
- The NRMSE did not exceed 0.165.
- Participants performed movements with a high sampling frequency of 1000 Hz.
- The study confirmed the reliability of the KunWei system in various athletic scenarios.
- Data showed no significant differences in peak forces across tested movements.
Takeaway
Researchers created a new portable device to measure forces during movements, and it works just as well as a more expensive lab device.
Methodology
Participants performed four movements while data was collected using both the KunWei and Bertec systems to compare their measurements.
Limitations
The study was limited to a small sample size and specific movements, which may not represent all athletic scenarios.
Participant Demographics
15 male collegiate students, average height 178.8 cm, weight 74.9 kg, age 20.4 years.
Statistical Information
P-Value
p < 0.001 for side-cutting X and Y axes.
Confidence Interval
95% CI for side-cutting X-Axis was [0.077, 0.194] and for Y-Axis was [−0.235, −0.077].
Statistical Significance
p > 0.05
Digital Object Identifier (DOI)
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