[Association among weight loss, bone mass, body composition and dietary intake of post-pubertal obese adolescents].
OBJECTIVE
To verify the effects of weight loss on bone mass of obese adolescents submitted to a nutritional intervention based on a hypocaloric diet and nutritional advice over a nine-month-period.


METHODS
Anthropometry, body composition, BMD and dietary intake were evaluated.


RESULTS
Fifty-five adolescents, 78.2% females, within an average age of 16.6 (1.4) years old participated in the study. Sixteen participants who completed the study did not lose weight. The group that adhered to the nutritional intervention had a mean weight loss of 6.2 (4.6)% baseline. There was a significant increase in total BMD and bone mineral content (BMC) in those adolescents who did not lose weight, while increased BMC and bone area were verified in participants who lost weight, mainly when associated with body composition alterations while changing weight.


CONCLUSIONS
The increment in bone mineral density, even throughout weight loss, has showed no negative effect on bone mass and has also emphasized the importance of nutritional improvement in total bone mass during adolescence.
Santos
Luana C
LC
Departamento de Nutrição da Faculdade de Saúde Pública da Universidade de São Paulo, SP, Brasil.
Cintra
Isa P
IP
Fisberg
Mauro
M
Castro
Marise L
ML
Martini
Lígia A
LA
D000293:Adolescent; D000886:Anthropometry; D001823:Body Composition / Q000502:physiology*; D015519:Bone Density / Q000502:physiology*; D001842:Bone and Bones / Q000473:pathology; D004038:Diet, Reducing; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D018529:Nutritional Support; D009765:Obesity / Q000178:diet therapy*; D015431:Weight Loss / Q000502:physiology*