BACKGROUND: Weight loss may contribute to the loss of lean mass with age. OBJECTIVE: The objective was to evaluate the relation between weight loss or weight gain and changes in lean mass and fat mass in older adults. DESIGN: We observed changes in weight and body composition during a 4-y period in 2163 men (47%) and women (53%) aged 70-79 y in the Health, Aging and Body Composition Study cohort. Whole-body and appendicular bone-free lean mass and fat mass were measured by using dual-energy X-ray absorptiometry. RESULTS: Weight loss and weight gain were common. In both weight losers and weight gainers, changes in lean mass as a percentage of initial lean mass were substantially smaller than changes in fat mass as a percentage of initial fat mass. However, the difference between the change in lean mass and that in fat mass was more pronounced with weight gain than with weight loss, especially in men. Small amounts of lean loss and fat gain were noted with weight stability. In multivariate models, weight loss was strongly associated with lean mass loss in both men and women, especially in men whose weight loss was concurrent with a hospitalization. CONCLUSIONS: With weight change, a greater proportion of lean mass than of fat mass was conserved, but, especially in older men, significantly more lean mass was lost with weight loss than was gained with weight gain. These findings suggest that weight loss, even with regain, could accelerate sarcopenia in older adults.
BACKGROUND:Weight loss may contribute to the loss of lean mass with age. OBJECTIVE: The objective was to evaluate the relation between weight loss or weight gain and changes in lean mass and fat mass in older adults. DESIGN: We observed changes in weight and body composition during a 4-y period in 2163 men (47%) and women (53%) aged 70-79 y in the Health, Aging and Body Composition Study cohort. Whole-body and appendicular bone-free lean mass and fat mass were measured by using dual-energy X-ray absorptiometry. RESULTS:Weight loss and weight gain were common. In both weight losers and weight gainers, changes in lean mass as a percentage of initial lean mass were substantially smaller than changes in fat mass as a percentage of initial fat mass. However, the difference between the change in lean mass and that in fat mass was more pronounced with weight gain than with weight loss, especially in men. Small amounts of lean loss and fat gain were noted with weight stability. In multivariate models, weight loss was strongly associated with lean mass loss in both men and women, especially in men whose weight loss was concurrent with a hospitalization. CONCLUSIONS: With weight change, a greater proportion of lean mass than of fat mass was conserved, but, especially in older men, significantly more lean mass was lost with weight loss than was gained with weight gain. These findings suggest that weight loss, even with regain, could accelerate sarcopenia in older adults.
Authors: Jamy D Ard; Miranda Cook; Julia Rushing; Annette Frain; Kristen Beavers; Gary Miller; Michael E Miller; Barb Nicklas Journal: Obesity (Silver Spring) Date: 2016-07-19 Impact factor: 5.002
Authors: Christine G Lee; Edward J Boyko; Carrie M Nielson; Marcia L Stefanick; Douglas C Bauer; Andrew R Hoffman; Thuy-Tien L Dam; Jodi A Lapidus; Peggy Mannen Cawthon; Kristine E Ensrud; Eric S Orwoll Journal: J Am Geriatr Soc Date: 2011-02-02 Impact factor: 5.562
Authors: Andrea P Rossi; Nora L Watson; Anne B Newman; Tamara B Harris; Stephen B Kritchevsky; Douglas C Bauer; Suzanne Satterfield; Bret H Goodpaster; Mauro Zamboni Journal: J Gerontol A Biol Sci Med Sci Date: 2011-04-15 Impact factor: 6.053
Authors: Nicole Vogelzangs; Stephen B Kritchevsky; Aartjan T F Beekman; Anne B Newman; Suzanne Satterfield; Eleanor M Simonsick; Kristine Yaffe; Tamara B Harris; Brenda W J H Penninx Journal: Arch Gen Psychiatry Date: 2008-12
Authors: Hussein N Yassine; Christine M Marchetti; Raj K Krishnan; Thomas R Vrobel; Frank Gonzalez; John P Kirwan Journal: J Gerontol A Biol Sci Med Sci Date: 2009-01-20 Impact factor: 6.053
Authors: M M Gordon; M J Bopp; L Easter; G D Miller; M F Lyles; D K Houston; B J Nicklas; S B Kritchevsky Journal: J Nutr Health Aging Date: 2008-10 Impact factor: 4.075