Abstract
The analysis of plantar pressure through podometry has allowed analyzing and detecting different types of disorders and treatments in child patients. Early detection of an inadequate distribution of the patient’s weight can prevent serious injuries to the knees and lower spine. In this paper, an embedded system capable of detecting the presence of normal, flat, or arched footprints using resistive pressure sensors was proposed. For this purpose, both hardware- and software-related criteria were studied for an improved data acquisition through signal coupling and filtering processes. Subsequently, learning algorithms allowed us to estimate the type of footprint biomechanics in preschool and school children volunteers. As a result, the proposed algorithm achieved an overall classification accuracy of 97.2%. A flat feet share of 60% was encountered in a sample of 1000 preschool children. Similarly, flat feet were observed in 52% of a sample of 600 school children.
Highlights
The major functionality of the foot is to provide the necessary support and propulsion for the human body to move in a bipedal manner, carrying out different locomotive activities throughout the day
The proposed embedded system (ES) was deployed on a surface that could support the weight of a child
We present our conclusions in relation to: (i) the embedded system design, (ii) the data analysis, and (iii) the feasibility of the system in real conditions: (i)
Summary
The major functionality of the foot is to provide the necessary support and propulsion for the human body to move in a bipedal manner, carrying out different locomotive activities throughout the day. Among the diverse research on FBSs, the analysis of foot sole pressure has become an essential detail for the proper diagnosis of problems in the lower spinal column, muscles, and joint injuries [4]. Podometry is employed to study the distribution of plantar pressure and the relationship with the foot, ankle, knee, and hip during physical activities. This is based on the study of the anatomy of the foot, which allows describing its structure and parts: hindfoot, midfoot, forefoot, and the foot sole vault (providing resistance to the load, weight, and effort) [6]
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