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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Rohrer's index ： ウィキペディア英語版 Corpulence index The Corpulence Index (CI) or Ponderal Index (PI) is a measure of leanness of a person〔''Foods and Nutrition Encyclopedia'', Audrey H. Ensminger, Marion Eugene Ensminger. p. 1645〕 calculated as a relationship between mass and height.〔(EXSS 323: LAB 1 - BIOMECHANICS TOOLS: Computers, Algebra and Trig ) Oregon State University〕 It was first proposed in 1921 as the "Corpulence Index" by Rohrer and hence also known as Rohrer's Index.〔http://www.wisegeek.com/what-is-the-ponderal-index.htm〕 It is similar to the body mass index, but the mass is normalized with the third power of body height rather than the second power.〔 :$\backslash mathrm\; =\; \backslash frac$ For a baby, it is calculated as :$\backslash mathrm\; =\; \backslash frac$ with $mass$ in kg (kilograms) and $height$ in m (meters), giving a measure with the same dimensions as density. The corpulence index yields valid results even for very short and very tall persons.〔Lawrence F. Ditmier: ''New Developments in Obesity Research''. Nova Science Publishers, Hauppauge, New York 2006, ISBN 1-60021-296-4〕 Because of this property, it is most commonly used in pediatrics.〔(ACC/SCN NUTRITION POLICY PAPER No. 19 - Glossary ) by Lindsay H. Allen and Stuart R. Gillespie〕 The normal values for infants are about twice as high as for adults, which is the result of their relatively short legs. It does not need to be adjusted for age after adolescence. The corpulence index is variously defined (the first definition should be preferred due to the use of SI-units ''kg'' and ''m'') as follows: 〔 | kilograms | metres | 10.3 to 13.9, 24 for 12-month-old infant〔 ~12 for those 12-year-old or older.〔 |- | $\backslash text=1000\backslash frac$〔 | grams | centimetres | 2.4 for 12-month-old infant |- | $\backslash text=1000\backslash times\backslash frac$〔 | kilograms | centimetres | 21.75 to 24.0〔The source quoted (Oregon State University) states that typical healthy PI values range between 20 and 25.〕 |- | $\backslash text=100\backslash times\backslash frac$〔(Medical Dictionary ) University of Newcastle upon Tyne〕 | kilograms | centimetres | 2.175 to 2.4 |- | $\backslash text=\backslash frac$ ==Significance== * It plays a role in assessing whether the intrauterine growth restriction of a child is symmetrical or asymmetrical. * CI has been shown to have higher sensitivity, specificity, positive predictive value, and negative predictive value than BMI.〔 * Body adiposity index 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Corpulence index」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.