Kong Yong-Ku, Freivalds Andris, Kim Dae-Min, Chang Joonho
a Sungkyunkwan University , Korea.
b Pennsylvania State University , USA.
Int J Occup Saf Ergon. 2017 Jun;23(2):214-224. doi: 10.1080/10803548.2016.1199354. Epub 2016 Jul 13.
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.
本研究考察了两种转换方法M1和M2，以基于手指/指骨表面长度预测手指/指骨长度。招募了41名韩国大学生（25名男性和16名女性），分别使用游标卡尺、X射线发生器和双手测力系统测量他们的手指/指骨表面长度、骨长度和握力。M1和M2分别定义为能够基于一个维度（即手部表面长度）和四个手指维度（手指表面长度）来估计手指/指骨长度的公式。转换结果显示，M1的估计误差平均为1.22毫米，小于M2的估计误差（1.29毫米）。M1估计的骨长度（平均r = 0.81）与测量的骨长度之间的相关性高于M2估计的骨长度（0.79）。因此，基于转换的简便性和准确性，本研究推荐使用M1方法。
