Detection of small changes in body composition by dual-energy x-ray absorptiometry

Scott B Going, Michael P. Massett, Matthew C. Hall, Lisa A. Bare, Patricia A. Root, Daniel P. Williams, Timothy G Lohman

Research output: Contribution to journalArticle

163 Citations (Scopus)

Abstract

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 ≈1.5 kg due to fluid loss and gain 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.

Original languageEnglish (US)
Pages (from-to)845-850
Number of pages6
JournalAmerican Journal of Clinical Nutrition
Volume57
Issue number6
StatePublished - Jun 1993

Fingerprint

Body Composition
body composition
X-radiation
X-Rays
energy
Fats
Densitometry
Fluid Therapy
Dehydration
lipids
Weights and Measures
Bone and Bones
densitometry
rehydration
weighing devices
tissues
bones

Keywords

  • Body composition
  • Bone mineral
  • Dehydration
  • Densitometry
  • Dual-energy x-ray absorptiometry
  • Fat mass
  • Lean-tissue mass
  • Rehydration
  • Total mass

ASJC Scopus subject areas

  • Food Science
  • Medicine (miscellaneous)

Cite this

Going, S. B., Massett, M. P., Hall, M. C., Bare, L. A., Root, P. A., Williams, D. P., & Lohman, T. G. (1993). Detection of small changes in body composition by dual-energy x-ray absorptiometry. American Journal of Clinical Nutrition, 57(6), 845-850.

Detection of small changes in body composition by dual-energy x-ray absorptiometry. / Going, Scott B; Massett, Michael P.; Hall, Matthew C.; Bare, Lisa A.; Root, Patricia A.; Williams, Daniel P.; Lohman, Timothy G.

In: American Journal of Clinical Nutrition, Vol. 57, No. 6, 06.1993, p. 845-850.

Research output: Contribution to journalArticle

Going, SB, Massett, MP, Hall, MC, Bare, LA, Root, PA, Williams, DP & Lohman, TG 1993, 'Detection of small changes in body composition by dual-energy x-ray absorptiometry', American Journal of Clinical Nutrition, vol. 57, no. 6, pp. 845-850.
Going SB, Massett MP, Hall MC, Bare LA, Root PA, Williams DP et al. Detection of small changes in body composition by dual-energy x-ray absorptiometry. American Journal of Clinical Nutrition. 1993 Jun;57(6):845-850.
Going, Scott B ; Massett, Michael P. ; Hall, Matthew C. ; Bare, Lisa A. ; Root, Patricia A. ; Williams, Daniel P. ; Lohman, Timothy G. / Detection of small changes in body composition by dual-energy x-ray absorptiometry. In: American Journal of Clinical Nutrition. 1993 ; Vol. 57, No. 6. pp. 845-850.
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