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2003 JUL 3 - (NewsRx.com & NewsRx.net) -- Muscle loss may be more likely to evolve in older aged men and blacks.
According to recent research published in the Journal of Applied Physiology, "changing body composition has been suggested as a pathway to explain age-related functional decline. No data are available on the expected changes in body composition as measured by dual-energy X-ray absorptiometry (DXA) in a population-based cohort of older persons. Body composition data at baseline, 1-yr follow-up, and 2-yr follow-up was measured by DXA in 2040 well-functioning black and white men and women aged 70-79 years, participants of the Health, Aging, and Body Composition Study."
"After 2 years, a small decline in total body mass was observed ( men: -0.3%, women: -0.4%). Among men, fat-free mass and appendicular lean soft tissue mass (ALST) decreased by -1.1 and -0.8%, respectively, which was masked by a simultaneous increase in total fat mass (+2.0%)," said M. Visser and colleagues, Vrije University Medical Center, Institute for Research in Extramural Medicine.
"Among women, a decline in fat-free mass was observed after 2 years only (-0.6%) with no change in ALST and body fat mass. After 2 years, the decline in ALST was greater in blacks than whites. Change in total body mass was associated ...
Source: HighBeam Research, Muscle loss may be more likely to evolve in older aged men and blacks.