Abstract
Foot structure has been known to vary, consequently, there is need for anthropometric data update. The objective of this study is to develop a model of foot anthropometric descriptors for the design of prosthesis and footwear in Nigeria using craft questionnaires structured with Likert’s 5-point attitudinal scale which was administered to 100 respondents and the corresponding data analyzed with Kendall’s Coefficient of Concordance (KCC) and Principal Component Analysis (PCA). Thirteen judges ranked the 36 foot anthropometric descriptors in descending order of importance. The data revealed footwear safety (0.811), technology enhancement (0.811), footwear fitness (0.810), Joint girth (0.794) and change in lifestyle (0.768) as dominant descriptors based on their factor loadings. This study showed that foot anthropometry is an important science for designing prosthetic and foot wears that can achieve the desired fit and comfort.Keywords: Plantar pressure, Foot anthropometry, Prosthesis, Footwear, Descriptors
Highlights
Data on modeling foot Anthropometric descriptors for the design of prosthesis and footwear in Nigeria are rare. This situation has established a yawning crevasse for the development of foot Anthropometry that can serve as baseline for the design of prosthesis and footwear
Foot Anthropometry has shown that foot dimensions vary widely with individuals and the import is that the design of foot wears even prosthesis must consider those variations in order to achieve the desired fitness
It is evident from the foregoing that there is a balance of literature especially in the area of assessment of foot Anthropometric descriptors for Nigerian adult population
Summary
Thirty six scale items were identified through an extensive survey of literature and were used to craft a set of questionnaires that were administered to respondents. Thirteen judges were selected who ranked the first set of questionnaires in descending order of importance and the respondents scores were collated into data matrix having a dimension of 13 by 36. Kendall’s Coefficient of Concordance (KCC) denotes the index of consistency in ranking. In order to validate (assess) how consistent the judges were in ranking the scale items, Chi-square ( ) was used. To test the significance of the KCC result, Chi-square ( 2 ) was used and the equation is given as χ2 cal = K( − 1) W (3)
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