Hyperglycemia is associated with relatively lower lean body mass in older adults

Rita Rastogi Kalyani, Y. Tra, J. M. Egan, L. Ferrucci, Frederick Louis Brancati

Research output: Contribution to journalArticle

Abstract

Background/Objectives: Older adults with known diabetes are vulnerable to accelerated loss of lean body mass. However, the relationship of hyperglycemia per se with lean body mass is not fully understood. We sought to examine the independent relationship of hyperglycemia with relative lean body mass in older persons without a reported history of diabetes.

Design: Cross-sectional nationally representative survey.

Setting: United States.

Participants: We studied U.S. adults >50 years without known diabetes (n=5434) in the National Health and Nutrition Examination Survey (1999–2004).

Measurements: In linear regression models, we studied the relationship of measured HbA1c (<5.0%, 5.0–5.4%, 5.5–5.9%, 6.0–6.4%, ≥6.5%) with percent lean body mass, measured by dual-energy x-ray absorptiometry, after accounting for potential confounders.

Results: Among older U.S. men and women, progressively higher HbA1c was associated with relatively lower total, appendicular, and trunk percent lean mass, independent of demographics and height (all p<0.05). Accounting for physical activity, C-reactive protein, and diabetes-related comorbidities (heart disease, peripheral arterial disease, arthritis, neuropathy, hip fracture, amputation, cancer, pulmonary disease), undiagnosed diabetes (i.e. HbA1c ≥6.5%) versus reference (<5.0%) in both men and women was associated with lower total (−3.5±0.8% and −2.9±0.8%), appendicular (−1.8±0.5% and −1.2±0.4%), and trunk percent lean mass (−1.2±0.4% and −1.3±0.5%), respectively (all p<0.05). Persons at increased risk for diabetes (i.e. HbA1c 6.0–6.4%) also had significant decrements at these sites versus reference.

Conclusions: Hyperglycemia is associated with relatively lower lean mass in a nationally representative population of older adults without history of diabetes. Future longitudinal studies are needed to investigate the relationship of hyperglycemia with the accelerated decline of skeletal muscle mass in older persons.

Original languageEnglish (US)
Pages (from-to)737-743
Number of pages7
JournalJournal of Nutrition, Health and Aging
Volume18
Issue number8
DOIs
StatePublished - Nov 18 2014

Keywords

  • Hyperglycemia
  • diabetes
  • elderly
  • muscle function

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics
  • Geriatrics and Gerontology

Fingerprint Dive into the research topics of 'Hyperglycemia is associated with relatively lower lean body mass in older adults'. Together they form a unique fingerprint.

  • Cite this