The effect of dietary restriction on body composition in adult male and female rhesus macaques

R. J. Colman, E. B. Roecker, Jon J Ramsey, J. W. Kemnitz

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

Dietary restriction is the only intervention shown to increase maximal life span, and to retard the rate of aging in rodents. As part of a long- term randomized trial of the effects of a 2030/o dietary restriction (DR) on adult rhesus macaques, female (N=3O) and male (N=16) monkeys were assessed at baseline and 6, 12 and 18 months, following randomization to control (C) or dietary restricted (R) groups, for body composition by dual-energy x-ray absorptiometry. At baseline, there were no significant differences between C and R groups in any body composition parameters measured. Males had significantly (p<0.05) greater values at baseline than females for body weight (BW), body mass index (BMI), total body lean tissue mass (LTM), appendicular skeletal muscle mass (ASM), and total body bone mineral content (BMC). When analyzed longitudinally through 18 months of DR, C females had significantly increased BW, total body fat tissue mass (FTM), total body percent fat tissue mass (%FTM), LTM, ASM, BMC and abdominal fat tissue mass (AbFTM) relative to R animals. Male C animals had significantly increased BW, FTM, %FTM, BMC and AbFTM relative to R males. The primary effect of DR on body composition in these animals was on FTM.

Original languageEnglish (US)
Pages (from-to)83-92
Number of pages10
JournalAging clinical and experimental research
Volume10
Issue number2
StatePublished - Apr 1998
Externally publishedYes

Keywords

  • Aging
  • Body composition
  • Dietary restriction
  • Dual-energy x-ray absorptiometry
  • Rhesus macaque

ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology

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