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KMID : 1130920240280010021
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Journal of Korean Foot and Ankle Society
2024 Volume.28 No. 1 p.21 ~ p.26
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Comparative Analysis of Two Pedobarography Systems
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Kang Ho-Won
Pyeun Soo-Min
Kim Dae-Yoo
Cho Yun-Jae
Kyung Min-Gyu
Lee Dong-Yeon
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Abstract
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Purpose: Foot pressure measurement devices are used widely in clinical settings for plantar pressure assessments. Despite the availability of various devices, studies evaluating the inter-device reliability are limited. This study compared plantar pressure measurements ob- tained from HR Mat (Tekscan Inc.) and EMED-n50 (Novel GmbH).
Materials and Methods: The study involved 38 healthy male volunteers. The participants were categorized into two groups based on the Meary’s angle in standing foot lateral radiographs: those with normal feet (angles ranging from ?4° to 4°) and those with mild flatfeet (angles from ?8° to ?15°). The static and dynamic plantar pressures of the participants were measured using HR Mat and EMED-n50.
The reliability of the contact area and mean force was assessed using the interclass correlation coefficient (ICC). Furthermore, the differ- ences in measurements between the two devices were examined, considering the presence of mild flatfoot.
Results: The ICC values for the contact area and mean force ranged from 0.703 to 0.947, indicating good-to-excellent reliability across all areas. EMED-n50 tended to record higher contact areas than HR Mat. The mean force was significantly higher in the forefoot region when measured with EMED-n50, whereas, in the hindfoot region, this difference was observed only during static measurements with HR Mat. Participants with mild flatfeet exhibited significantly higher contact areas in the midfoot region for both devices, with no con- sistent differences in the other parameters.
Conclusion: The contact area and mean force measurements of the HR Mat and EMED-n50 showed high reliability. On the other hand, EMED-n50 tended to record higher contact areas than HR Mat. In cases of mild flatfoot, an increase in contact area within the midfoot region was observed, but no consistent impact on the differences between the two devices was evident.
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KEYWORD
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Foot, Flat foot, Plantar pressure, Pedobarography, Reliability
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