| Journal: | Revista da Associacao Medica Brasileira |
| Database: | PERIÓDICA |
| System number: | 000307362 |
| ISSN: | 0104-4230 |
| Authors: | Morais, A.A.C1 Tavares, G.M Pezzin, A.C Moana, A.A Galvao, H.P Faintuch, J |
| Institutions: | 1Santa Casa de Misericordia de Vitoria, Escola de Medicina, Vitoria, Espirito Santo. Brasil |
| Year: | 1997 |
| Season: | Abr-Jun |
| Volumen: | 43 |
| Number: | 2 |
| Pages: | 109-113 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | BACKGROUND. Pregnancy is associated with well-known physiologic changes of maternal fluid and energy compartments, along with organ hypertrophies and the appearance of fetal and placental tissues. As a consequence, body composition is modified, but this phenomenon has not been well documented. The advent of bioimpedance has contributed to the documentation of the desired information in a safe and practical way. AIMS. The aims of this study were: To register the principal anthropometric variables in a population of pregnant women at term; To determine body composition by bioimpedance analysis; To compare these findings with the former results, as well as with other assessment procedures reported in the literature. PATIENTS AND MATHODS. The population consisted of 30 pregnant women at term admitted for delivery, without complications, fetal distress or multiple pregnancy, and submitted to the following measurements: Anthropometry - Weight, height, body mass index, triceps skinfold, arm muscle circumference; Bioimpedance analysis - Body fat, lean body mass, total water, intra and extracellular water, third space, and exchangeable Na/K ratio. RESULTS. Body weight and body mass index were increased but within the expected values for these patients. Total body water was similar to results in non-pregnant women when expressed as percentage, in accordance with other studies, but with a trend toward increase in the extracellular compartment and presence of third space fluid. Body fat was elevated, but the proportions were not much different from previous anthropometric surveys. CONCLUSIONS. In the conditions of this investigation, in which a bioimpedance equation for general use was employed, the method indicated results that were consistent with the clinical course, anthropometric documentation, and the findings of other groups. It is concluded that bioimpedance analysis compares favorably with other assessment procedures in pregnancy, and further studies with this m |
| Portuguese abstract | A gravidez acompanha-se de modificações fisiológicas bem conhecidas nos compartimentos hídricos e energéticos maternos, que se somam a hipertrofias orgânicas e ao aparecimento de um bloco feto-placentário. Conseqüentemente, a composição corporal sofre alterações, porém poucos estudos têm documentado tal fenômeno. O advento da bioimpedância favoreceu a obtenção das informações desejadas de forma prática e segura. OBJETIVOS. Foram os propósitos deste trabalho: registrar as principais variáveis antropométricas numa população de gestantes de termo; determinar as medidas de composição corpórea pela bioimpedância; comparar esses achados com os primeiros, assim como com outras metodologias relatadas na literatura. PACIENTES E MÉTODO. A população consistiu de 30 gestantes de termo admitidas no período pré-parto, sem complicações, sofrimento fetal ou gravidez múltipla, e submetidas às seguintes mensurações: Antropometria - Peso, altura, índice de massa corporal, prega cutânea do tríceps, circunferência muscular do braço; Bioimpedância - Gordura corporal, massa magra, água total, água intra e extracelular, terceiro espaço e relação sódio/potássio permutável. RESULTADOS. Observaram-se valores de peso corporal e índice de massa corporal aumentados, porém inteiramente compatíveis com a situação fisiológica das gestantes. A água corpórea total situava-se na mesma faixa percentual de mulheres não-grávidas, tal como já suspeitado por outros autores, porém com indícios de expansão do extracelular e formação de terceiro espaço. A massa gorda elevou- |
| Disciplines: | Medicina |
| Keyword: | Ginecología y obstetricia, Embarazo, Composición corporal, Agua corporal, Grasa corporal, Antropometría, Evaluación nutricional, Impedancia bioeléctrica |
| Keyword: | Medicine, Gynecology and obstetrics, Pregnancy, Body composition, Body water, Body fat, Anthropometry, Nutritional assessment, Bioelectric impedance analysis |
| Full text: | Texto completo (Ver HTML) |
