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Foot modeling and smart plantar pressure reconstruction from three sensors.

Ghaida HA, Mottet S, Goujon JM - Open Biomed Eng J (2014)

Bottom Line: In a second part, we show that just 3 discrete pressure sensors per foot are enough to generate real time plantar pressure cartographies in the standing position or during walking.Finally, the generated cartographies are compared with pressure cartographies issued from the F-SCAN system.The results show 0.01 daN (2% of full scale) average error, in the standing position.

View Article: PubMed Central - PubMed

Affiliation: CNRS-Foton, UMR 6082, Lannion, France.

ABSTRACT
In order to monitor pressure under feet, this study presents a biomechanical model of the human foot. The main elements of the foot that induce the plantar pressure distribution are described. Then the link between the forces applied at the ankle and the distribution of the plantar pressure is established. Assumptions are made by defining the concepts of a 3D internal foot shape, which can be extracted from the plantar pressure measurements, and a uniform elastic medium, which describes the soft tissues behaviour. In a second part, we show that just 3 discrete pressure sensors per foot are enough to generate real time plantar pressure cartographies in the standing position or during walking. Finally, the generated cartographies are compared with pressure cartographies issued from the F-SCAN system. The results show 0.01 daN (2% of full scale) average error, in the standing position.

No MeSH data available.


Related in: MedlinePlus

Sensor positions under the left and right foot.
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Figure 7: Sensor positions under the left and right foot.

Mentions: The 3 sensors are fixed on an insole. They are arranged under the heel, the first and fifth metatarsal respectively, as shown in Fig. (7). The F-SCAN insole is placed above the sensor insole, in order to compare the plantar pressures and the sensor measurement.


Foot modeling and smart plantar pressure reconstruction from three sensors.

Ghaida HA, Mottet S, Goujon JM - Open Biomed Eng J (2014)

Sensor positions under the left and right foot.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4231377&req=5

Figure 7: Sensor positions under the left and right foot.
Mentions: The 3 sensors are fixed on an insole. They are arranged under the heel, the first and fifth metatarsal respectively, as shown in Fig. (7). The F-SCAN insole is placed above the sensor insole, in order to compare the plantar pressures and the sensor measurement.

Bottom Line: In a second part, we show that just 3 discrete pressure sensors per foot are enough to generate real time plantar pressure cartographies in the standing position or during walking.Finally, the generated cartographies are compared with pressure cartographies issued from the F-SCAN system.The results show 0.01 daN (2% of full scale) average error, in the standing position.

View Article: PubMed Central - PubMed

Affiliation: CNRS-Foton, UMR 6082, Lannion, France.

ABSTRACT
In order to monitor pressure under feet, this study presents a biomechanical model of the human foot. The main elements of the foot that induce the plantar pressure distribution are described. Then the link between the forces applied at the ankle and the distribution of the plantar pressure is established. Assumptions are made by defining the concepts of a 3D internal foot shape, which can be extracted from the plantar pressure measurements, and a uniform elastic medium, which describes the soft tissues behaviour. In a second part, we show that just 3 discrete pressure sensors per foot are enough to generate real time plantar pressure cartographies in the standing position or during walking. Finally, the generated cartographies are compared with pressure cartographies issued from the F-SCAN system. The results show 0.01 daN (2% of full scale) average error, in the standing position.

No MeSH data available.


Related in: MedlinePlus