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Revista Brasileira de Medicina do Esporte

Print version ISSN 1517-8692On-line version ISSN 1806-9940


MELLO, Marco Túlio de et al. Body composition evaluation in obese adolescents: the use of two different methods. Rev Bras Med Esporte [online]. 2005, vol.11, n.5, pp.267-270. ISSN 1517-8692.

Plethysmography is an easy and quickly method for the determination of the body composition that uses the inverse relation between pressure and volume. The objective of the present study was to compare the values obtained by plethysmography and DEXA in an obese adolescents population. The sample was composed of 88 adolescents of both genders, aged between 15 and 19 years (17.01 ± 1.6 years) engaged in a multidisciplinary physical activity program. The volunteers were submitted to a body composition evaluation in distinct days in the same week, through plethysmography and DEXA. When the different methods were compared, no significant correlation between parameters common to both methods (fat free mass, fat mass (kg) and fat mass (%), r = 0.88 p < 0.05; r = 0.92 p < 0.05; r = 0.75 p < 0.05, respectively) was observed. Our data suggest that for this specific population, plethysmography may be used as an important method of body composition evaluation.

Keywords : Plethysmography; DEXA; Adolescents; Obesity.

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