DETECTION OF SMALL CHANGES IN BODY-COMPOSITION BY DUAL-ENERGY X-RAY ABSORPTIOMETRY

被引：171
作者：
GOING, SB
MASSETT, MP
HALL, MC
BARE, LA
ROOT, PA
WILLIAMS, DP
LOHMAN, TG
机构：
[1] Dept. of Exercise and Sport Sciences, Ina E Gittings Building, University of Arizona, Tucson
来源：
AMERICAN JOURNAL OF CLINICAL NUTRITION | 1993年 / 57卷 / 06期
关键词：
BODY COMPOSITION; DUAL-ENERGY X-RAY ABSORPTIOMETRY; TOTAL MASS; LEAN-TISSUE MASS; BONE MINERAL; FAT MASS; DEHYDRATION; REHYDRATION; DENSITOMETRY;
D O I：
10.1093/ajcn/57.6.845
中图分类号：
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号：
100403 ;
摘要：
The ability of dual-energy x-ray absorptiometry (DEXA) to detect small changes in body composition was studied in 17 men and women during a dehydration-rehydration protocol. Scale weight (BW) and total mass (TM) from DEXA were highly related (r > 0.99) as were estimates of fat-free mass (r = 0.99) and percent fat (r = 0.97) from DEXA and densitometry. Changes in BW of almost-equal-to 1.5 kg due to fluid loss and pin were highly correlated (r = 0.90) with both changes in TM and soft-tissue mass (STM) by DEXA but less so (r = 0.67) with changes in lean-tissue mass (LTM). Mean changes in TM, STM, and LTM were not different (P > 0.05) from changes in BW. Estimates of bone mass and fat were unaffected by changes in hydration. We conclude that DEXA is able to detect small individual changes in TM and STM and is also useful for detecting group changes in LTM.
引用
收藏
页码：845 / 850
页数：6
相关论文
共 29 条
[1]   AN UNDERWATER WEIGHING SYSTEM UTILIZING FORCE CUBE TRANSDUCERS [J].
AKERS, R ;
BUSKIRK, ER .
JOURNAL OF APPLIED PHYSIOLOGY, 1969, 26 (05) :649-&
[2]   STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT [J].
BLAND, JM ;
ALTMAN, DG .
LANCET, 1986, 1 (8476) :307-310
[3]   DENSITOMETRIC ANALYSIS OF BODY COMPOSITION REVISION OF SOME QUANTIATIVE ASSUMPTIONS [J].
BROZEK, J ;
ANDERSON, JT ;
KEYS, A ;
GRANDE, F .
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1963, 110 (01) :113-&
[4]   IMPACT OF TOTAL-BODY WATER FLUCTUATIONS ON ESTIMATION OF BODY-FAT FROM BODY DENSITY [J].
BUNT, JC ;
LOHMAN, TG ;
BOILEAU, RA .
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 1989, 21 (01) :96-100
[5]  
DRINKWATER D T, 1991, Medicine and Science in Sports and Exercise, V23, pS150
[6]   BODY-COMPOSITION CHANGES RESULTING FROM FLUID INGESTION AND DEHYDRATION [J].
GIRANDOLA, RN ;
WISWELL, RA ;
ROMERO, G .
RESEARCH QUARTERLY, 1977, 48 (02) :299-303
[7]   MEASUREMENT OF LEAN BODY-MASS AND TOTAL-BODY FAT USING DUAL PHOTON-ABSORPTIOMETRY [J].
GOTFREDSEN, A ;
JENSEN, J ;
BORG, J ;
CHRISTIANSEN, C .
METABOLISM-CLINICAL AND EXPERIMENTAL, 1986, 35 (01) :88-93
[8]  
HANSEN NJ, 1992, IN PRESS J APPL PHYS
[9]   BODY-COMPOSITION IN ELDERLY SUBJECTS - A CRITICAL-APPRAISAL OF CLINICAL METHODOLOGY [J].
HEYMSFIELD, SB ;
WANG, J ;
LICHTMAN, S ;
KAMEN, Y ;
KEHAYIAS, J ;
PIERSON, RN .
AMERICAN JOURNAL OF CLINICAL NUTRITION, 1989, 50 (05) :1167-1175
[10]   DUAL-PHOTON ABSORPTIOMETRY - COMPARISON OF BONE-MINERAL AND SOFT-TISSUE MASS MEASUREMENTS INVIVO WITH ESTABLISHED METHODS [J].
HEYMSFIELD, SB ;
WANG, J ;
HESHKA, S ;
KEHAYIAS, JJ ;
PIERSON, RN .
AMERICAN JOURNAL OF CLINICAL NUTRITION, 1989, 49 (06) :1283-1289
123