Investigation of methods for estimating hand bone dimensions using X-ray hand anthropometric data |
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Authors: | Yong-Ku Kong Andris Freivalds Dae-Min Kim |
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Affiliation: | 1. Sungkyunkwan University, Korea;2. Pennsylvania State University, USA;3. Dongseo University, Korea |
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Abstract: | This study examined two conversion methods, M1 and M2, to predict finger/phalange bone lengths based on finger/phalange surface lengths. Forty-one Korean college students (25 males and 16 females) were recruited and their finger/phalange surface lengths, bone lengths and grip strengths were measured using a vernier caliper, an X-ray generator and a double-handle force measurement system, respectively. M1 and M2 were defined as formulas able to estimate finger/phalange bone lengths based on one dimension (i.e., surface hand length) and four finger dimensions (surface finger lengths), respectively. As a result of conversion, the estimation errors by M1 presented mean 1.22?mm, which was smaller than those (1.29?mm) by M2. The bone lengths estimated by M1 (mean r?=?0.81) presented higher correlations with the measured bone lengths than those estimated by M2 (0.79). Thus, the M1 method was recommended in the present study, based on conversion simplicity and accuracy. |
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Keywords: | X-ray hand anthropometric data finger/phalange bone lengths finger/phalange surface lengths estimation of finger/bone lengths estimation error of finger bone lengths |
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