Pregledni rad
Body Composition Variations in Ageing
Roberto Buffa
Giovanni U. Floris
Paolo F. Putzu
Elisabetta Marini
Sažetak
Age-related physiological variations of body composition concern both the fat-free mass (FFM) and the fat mass (FM).
These variations expose the elderly person to the risk of malnutrition and could lead to conditions of disability. This paper
aims to review the current state of knowledge on body composition in the aged population. The pattern of qualitative
variations in body composition in old age is fairly well defined. In adulthood, the physiological variation of body mass
involves a first increasing phase followed by a decreasing trend. The reduction is due mainly to the loss of fat-free mass,
especially muscle mass. Total body water and bone mass also decrease. Fat mass tends to decrease and the reduction
seems to be due mainly to the loss of subcutaneous fat. The quantitative aspects of the age of onset, rate and intensity of
the physiological variations are still not completely clear. This poor quantitative definition is due to the variable and
multifactorial phenomenology of ageing, the heterogeneity of assessment techniques and sampling models, and the limited
number of empirical observations in oldest-old individuals.
Ključne riječi
sarcopenia; osteopenia; dehydration; malnutrition
Hrčak ID:
64798
URI
Datum izdavanja:
7.3.2011.
Posjeta: 2.899 *