Physical activity, exercise, and inflammatory markers in older adults: Findings from the health, aging and body composition study

Lisa H. Colbert, Marjolein Visser, Eleanor M. Simonsick, Russell P. Tracy, Anne B. Newman, Stephen B. Kritchevsky, Marco Pahor, Dennis R. Taaffe, Jennifer Brach, Susan Rubin, Tamara B. Harris

Research output: Contribution to journalArticle

Abstract

OBJECTIVES: To examine the association between physical activity and inflammatory markers, with consideration for body fatness and antioxidant use. DESIGN: Cross-sectional study, using baseline data from the Health, Aging and Body Composition Study. SETTING: Metropolitan areas surrounding Pittsburgh, Pennsylvania, and Memphis, Tennessee. PARTICIPANTS: Black and white, well-functioning men and women (N = 3,075), aged 70 to 79. MEASUREMENTS: Interviewer-administered questionnaires of previous-week household, walking, exercise, and occupational/volunteer physical activities. Analysis of covariance was used to examine the association between activity level and serum C-reactive protein (CRP), interleukin-6 (IL-6), and plasma tumor necrosis factor alpha (TNFα) with covariate adjustment. Antioxidant supplement use (multivitamin, vitamins E or C, beta carotene) was evaluated as an effect modifier of the association. RESULTS: Higher levels of exercise were associated with lower levels of CRP (P < .01), IL-6 (P < .001), and TNFα (P =.02) (e.g., CRP = 1.95 mg/L for no exercise and 1.72 for > 180 min/wk). Adjustment for body fatness attenuated the associations somewhat. Use of antioxidant supplements modified the CRP (Pinteraction = .01) and IL-6 (Pinteraction = .08) associations such that concentrations were low in those taking supplements (e.g., CRP = 1.79-1.84 across exercise levels) and higher in nonsupplement users who did no exercise (2.03) than in those who did the most (1.72). Among nonexercisers, higher levels of other physical activity were related to lower levels of CRP (P > .01) and IL-6 (P = .02) but not TNFα (P = .36), even after accounting for body fat. CONCLUSION: Inflammatory markers are lower in older adults with higher levels of exercise and nonexercise activity and in antioxidant supplement users regardless of exercise level.

Original languageEnglish (US)
Pages (from-to)1098-1104
Number of pages7
JournalJournal of the American Geriatrics Society
Volume52
Issue number7
DOIs
StatePublished - Jul 1 2004
Externally publishedYes

Keywords

  • Aging
  • C-reactive protein
  • Exercise
  • Inflammation
  • Interleukin-6
  • Physical activity
  • Tumor necrosis factor alpha

ASJC Scopus subject areas

  • Geriatrics and Gerontology

Fingerprint Dive into the research topics of 'Physical activity, exercise, and inflammatory markers in older adults: Findings from the health, aging and body composition study'. Together they form a unique fingerprint.

  • Cite this

    Colbert, L. H., Visser, M., Simonsick, E. M., Tracy, R. P., Newman, A. B., Kritchevsky, S. B., Pahor, M., Taaffe, D. R., Brach, J., Rubin, S., & Harris, T. B. (2004). Physical activity, exercise, and inflammatory markers in older adults: Findings from the health, aging and body composition study. Journal of the American Geriatrics Society, 52(7), 1098-1104. https://doi.org/10.1111/j.1532-5415.2004.52307.x