Age- and maturity-related changes in body composition during adolescence into adulthood: the Fels longitudinal study.
We examined patterns of change in body composition from 8 to 20 yrs of age and the effects of rate of maturation on these patterns using serial data for total body fat (TBF). There is a continual increase, but a declining rate of change with age in TBF. For %BF the same pattern as for TBF exists for females, but for males the pattern of change in percentage body fat (%BF) reflects the concurrent changes in fat free mass (FFM). For FFM, there is an increase in females that slows at older ages, but in males there is a continual rapid increase until young adulthood. There is marked tracking for body composition persisting from childhood to adulthood. At the same age, rapidly maturing children have significantly larger TBF, %BF and FFM than slowly maturing children.
Guo
S S
SS
Department of Community Health, Wright State University School of Medicine, Yellow Springs, OH 45387-1695, USA.
Chumlea
W C
WC
Roche
A F
AF
Siervogel
R M
RM
D000273:Adipose Tissue / Q000033:anatomy & histology* / Q000254:growth & development; D000293:Adolescent; D000328:Adult; D000365:Age Determination by Skeleton; D000367:Age Factors; D000375:Aging / Q000502:physiology*; D001823:Body Composition / Q000502:physiology*; D002648:Child; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D012044:Regression Analysis; D012680:Sensitivity and Specificity; D012727:Sex Characteristics