Faculty of Medicine, Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland.
Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland.
Am J Phys Anthropol. 2019 Oct;170(2):196-206. doi: 10.1002/ajpa.23905. Epub 2019 Aug 7.
Body mass estimation from skeletal dimensions is a useful tool when studying archeological human samples. Bony articular surface dimensions of the lower limb have frequently been utilized to estimate body size. In the present study, we investigated the association between knee breadth and body mass in a Northern European population. Our study aimed to confirm both methodology and results presented in earlier studies.
The study sample consists of 1,290 subjects belonging to the Northern Finland Birth Cohort 1966. Three knee breadth dimensions-femoral biepicondylar breadth, mediolateral breadth of femoral condyles, and mediolateral breadth of the tibial plateau-were measured from subjects' knee PA-radiographs. Measurements and their association with body weight at 31 years were utilized for creating body mass estimation equations using linear regression and reduced major axis regression. Correlations between knee measurements and body weight at three different ages (18, 31, and 46) were also analyzed.
Positive associations were detected between each knee breadth variable and weight in the total sample and both genders separately. Body mass estimation equations were created for the total sample, for males and for females. R values of the models ranged from 0.38 to 0.74. Median absolute percent prediction errors ranged from 6.89 to 9.72%. The highest correlations were obtained between knee breadth and body weight in early adulthood.
Our large sample confirmed that equations derived from knee breadth dimensions are accurate when estimating body mass of modern humans. Knee breadth measurements clearly have a positive association with body weight in early maturity.
从骨骼尺寸估算体重是研究考古人类样本的有用工具。下肢的关节面尺寸经常被用来估计体型。本研究旨在调查北欧人群中膝关节宽度与体重之间的关系。我们的研究旨在验证早期研究中提出的方法和结果。
研究样本包括属于芬兰北部出生队列 1966 年的 1290 名受试者。从受试者的膝关节 PA 射线照片中测量了三个膝关节宽度尺寸-股骨双髁宽度、股骨髁的内外宽度和胫骨平台的内外宽度。使用线性回归和简化主要轴回归，利用测量值及其与 31 岁时体重的关系来创建体重估算方程。还分析了膝关节测量值与三个不同年龄（18、31 和 46 岁）时体重之间的相关性。
在总样本和男女两性中，每个膝关节宽度变量与体重之间均存在正相关关系。为总样本、男性和女性创建了体重估算方程。模型的 R 值范围为 0.38 至 0.74。预测误差中位数绝对值的范围为 6.89%至 9.72%。在成年早期，膝关节宽度与体重之间的相关性最高。
我们的大样本证实，从膝关节宽度尺寸得出的方程在估算现代人的体重时是准确的。膝关节宽度测量值与早期成熟时的体重有明显的正相关关系。
