Abstract
Objectives: Determine the concordance between two methods of obtaining the plantar footprint (pedigraph and pressure platform). Methods: A descriptive, cross-sectional, observational study of prevalence was carried out in the social center of Cariño (Coruña), Spain (n = 65 participants). Older people without amputations or the presence of dysmetria were included. The variables studied were: sociodemographic (age, sex), anthropometric (body mass index) and footprint measurement variables. These measurements were made by obtaining the plantar footprint using two methods: pedigraph and pressure platform. Results: The mean age of the sample was 37.42 ± 15.05 years, with a predominance of the female gender (61.54%). Positive linear correlation between pedigraph and platform was observed in both feet in the Chippaux and Staheli indices (correlation coefficient > 0.3, p < 0.001 in each comparison). The reliability was good or moderate in relation with the Chippaux and Staheli index. Slightly lower coefficients were observed in the dimensions of the foot. Conclusions: A positive linear correlation between pedigraph and platform was observed in both feet in the Chippaux and Staheli indices. Significant differences were observed between pedigraph and platform in relation to the width and length of the foot. It is probably due to the fact that the pressure platform provides more exhaustive, detailed and accurate information of the foot.
Highlights
The function of the human foot is influenced by its anatomical structure
The normal footprint was the most prevalent footprint according to the Chippaux index, while the dug footprint was the most prevalent according to the Staheli index
The frequency of the normal footprint according to the Chippaux index classification was higher in the measurements provided by the pedigrapher compared to those provided by the platform
Summary
The function of the human foot is influenced by its anatomical structure. The shape of the plantar arch and its main support points in the heel and metatarsal area allow the weight of the body to be supported without the foot sinking [1,2]. The functional and structural characteristics of the foot vary with many factors, such as age, sex, weight, the presence of systemic diseases (such as diabetes or other comorbidities) [3], the fact of practicing a sports technique [4,5] and genetic disorders, such as Down’s syndrome in which muscle, ligament problems and gait disturbances appear [6] These circumstances promote the need to assess the lower limb in a systematic, individualized and detailed way, including different techniques that allow studying the foot with rigor and quality. These methods are used in addition to other screening and assessment
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