Abstract：
:Bones in the axial and appendicular skeletons exhibit heterogeneous growth patterns between different ethnic and sex groups. However, the influence of this differential growth on the expression of bone mineral content is not yet established. The aims of the present study were to investigate: 1) whether there are ethnic and sex differences in axial and appendicular dimensions of South African children; and 2) whether regional segment length is a better predictor of bone mass than stature. Anthropometric measurements of stature, weight, sitting height, and limb lengths were taken on 368 black and white, male and female 9-year-old children. DXA (dual-energy x-ray absorptiometry) scans of the distal ulna, distal radius, and hip and lumbar spine were also obtained. Analyses of covariance were performed to assess differences in limb lengths, adjusted for differences in stature. Multiple regression analyses were used to assess significant predictors of site-specific bone mass. Stature-adjusted means of limb lengths show that black boys have longer legs and humeri but shorter trunks than white boys. In addition, black children have longer forearms than white children, and girls have longer thighs than boys. The regression analysis demonstrated that site-specific bone mass was more strongly associated with regional segment length than stature, but this had little effect on the overall pattern of ethnic and sex differences. In conclusion, there is a differential effect of ethnicity and sex on the growth of the axial and appendicular skeletons, and regional segment length is a better predictor of site-specific bone mass than stature.
journal_name
Am J Phys Anthropoljournal_title
American journal of physical anthropologyauthors
Nyati LH,Norris SA,Cameron N,Pettifor JMdoi
10.1002/ajpa.20318subject
Has Abstractpub_date
2006-05-01 00:00:00pages
135-41issue
1eissn
0002-9483issn
1096-8644journal_volume
130pub_type
杂志文章abstract：:A radiographic technique for processing a large number of human crania was developed to aid in the diagnosis of porotic hyperostosis in a large skeletal population. These images are made directly onto photographic paper, thereby reducing costs and increasing the rate of processing. The technique is especially well sui...
journal_title：American journal of physical anthropology
pub_type： 杂志文章
doi：10.1002/ajpa.1330770105
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更新日期：1999-04-01 00:00:00
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pub_type： 杂志文章
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更新日期：1998-10-01 00:00:00
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pub_type： 杂志文章
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journal_title：American journal of physical anthropology
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pub_type： 杂志文章
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更新日期：1996-07-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
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更新日期：1982-06-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 杂志文章
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journal_title：American journal of physical anthropology
pub_type： 杂志文章
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journal_title：American journal of physical anthropology
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
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journal_title：American journal of physical anthropology
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更新日期：2012-03-01 00:00:00
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journal_title：American journal of physical anthropology
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doi：10.1002/ajpa.1330670102
更新日期：1985-05-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
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更新日期：1975-07-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
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更新日期：1999-06-01 00:00:00
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journal_title：American journal of physical anthropology
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更新日期：1993-02-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
doi：10.1002/ajpa.20054
更新日期：2005-03-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
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更新日期：1979-05-01 00:00:00
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journal_title：American journal of physical anthropology
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更新日期：1976-01-01 00:00:00
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更新日期：2004-10-01 00:00:00
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journal_title：American journal of physical anthropology
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更新日期：2004-12-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 杂志文章
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更新日期：2017-03-01 00:00:00
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journal_title：American journal of physical anthropology
pub_type： 历史文章,杂志文章
doi：10.1002/ajpa.1330550114
更新日期：1981-05-01 00:00:00
abstract：:Distribution and variation statistics of hominid endocranial volume (ECV) have been investigated. Within the interpretative constraints imposed by (very) small sample sizes, the requirements for normality are met, as are those for heteroscedasticity. A significant difference in means can be demonstrated for only two c...
journal_title：American journal of physical anthropology
pub_type： 杂志文章
doi：10.1002/ajpa.1330680214
更新日期：1985-10-01 00:00:00
abstract：OBJECTIVES:The purpose of this study is to demonstrate advantages of principal component analysis (PCA) as a standardized procedure in the evaluation of osteoarthritis (OA) in a skeletal series to: (1) compute aggregate scores for joint complexes that accurately capture pathological expression, (2) reveal which variabl...
journal_title：American journal of physical anthropology
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doi：10.1002/ajpa.23130
更新日期：2017-03-01 00:00:00
