ABSTRACT
ABSTRACT Objective The objective of the present study was to propose cutoff points of neck circumference for predicting overweight in Brazilian children. Methods We conducted a cross-sectional study with 875 children from public schools in Brazil. Weight, height, and neck circumference were measured. Nutritional status and the risk of complications were assessed based on the values of body mass index and neck circumference. Receiver operating characteristic curve analysis was used to verify the cutoff points. Results The median age was eight years, and the majority of the children had normal weights by body mass index and had no risk of metabolic complications by neck circumference. There was a correlation between neck circumference and body mass index (k=0.689; p<0.005). The mean values proposed for overweight were 29.2 cm for girls and 29.1 cm for boys. Conclusion Neck circumference had a good correlation with body mass index, and the cutoff points proposed can identify overweight in Brazilian children.
RESUMO Objetivo O objetivo do presente estudo foi propor pontos de corte para circunferência do pescoço para predição de excesso de peso em crianças brasileiras. Métodos Estudo transversal realizado com 875 crianças. Foram mensurados peso, estatura e circunferência do pescoço. O diagnóstico do estado nutricional e risco de complicações foi realizado com base nos valores de índice de massa corporal e circunferência de pescoço. Para verificar os pontos de corte foi utilizada a curva Característica de Operação do Receptor. Resultados A mediana de idade foi de oito anos e a maioria das crianças apresentou eutrofia pelo índice de massa corporal e nenhum risco de complicações metabólicas. Observou-se correlação substancial entre a circunferência do pescoço com o índice de massa corporal (k=0,689; p<0,005). Os valores médios de circunferência de pescoço propostos para excesso de peso foi 29,2 cm para meninas e 29,1 cm para meninos. Conclusão A circunferência do pescoço possui boa correlação com o índice de massa corporal e os pontos de corte aqui propostos possuem força para identificar crianças brasileiras com excesso de peso.
Subject(s)
Humans , Male , Female , Child , Body Mass Index , Nutritional Status/ethnology , Overweight/ethnology , Neck , Brazil/ethnology , Child , Cross-Sectional StudiesABSTRACT
A systematic literature review was conducted to investigate the effects of physical activity during pregnancy on selected maternal-child health outcomes. The search included articles published from 1980 to 2005 in the MEDLINE and LILACS databases using key words such as physical activity, physical exercise, pregnancy, and gestation. The methodological quality of 37 selected articles was evaluated. It appears to be a consensus that some light-to-moderate physical activity is not a risk factor and may even be considered a protective factor for some outcomes. However, some studies found an association between specific activities (e.g., climbing stairs or standing for long periods) and inadequate birth weight, prematurity, and miscarriage. Few studies found an association between physical activity and maternal weight gain, mode of delivery, or fetal development. Further research is needed to fill these gaps and provide guidelines on the intensity, duration, and frequency of physical activity during pregnancy.
Subject(s)
Child Welfare , Exercise/physiology , Infant Welfare , Maternal Welfare , Pregnancy , Child, Preschool , Female , Health Knowledge, Attitudes, Practice , Humans , Infant , Infant, Newborn , Leisure Activities , Pregnancy Outcome , Research Design/standardsABSTRACT
A systematic literature review was conducted to investigate the effects of physical activity during pregnancy on selected maternal-child health outcomes. The search included articles published from 1980 to 2005 in the MEDLINE and LILACS databases using key words such as physical activity, physical exercise, pregnancy, and gestation. The methodological quality of 37 selected articles was evaluated. It appears to be a consensus that some light-to-moderate physical activity is not a risk factor and may even be considered a protective factor for some outcomes. However, some studies found an association between specific activities (e.g., climbing stairs or standing for long periods) and inadequate birth weight, prematurity, and miscarriage. Few studies found an association between physical activity and maternal weight gain, mode of delivery, or fetal development. Further research is needed to fill these gaps and provide guidelines on the intensity, duration, and frequency of physical activity during pregnancy.
Realizou-se uma revisão sistemática da literatura com o objetivo de investigar o efeito da prática de atividade física durante a gestação em desfechos da saúde materno-infantil. A busca contemplou artigos publicados entre 1980 e 2005 nas bases de dados MEDLINE e LILACS utilizando-se as palavras-chave: physical activity; physical exercise; pregnancy e gestation. Foi feita uma avaliação da qualidade metodológica dos 37 artigos selecionados. Parece consenso que a prática de atividades físicas de intensidade leve ou moderada não consiste em fator de risco para alguns desfechos e pode representar fator de proteção. Contudo, alguns estudos encontraram associação entre atividades específicas, como subir escadas ou permanecer de pé por períodos prolongados e o peso inadequado do recém-nascido, prematuridade e aborto espontâneo. Poucos estudos encontraram associação entre a prática de atividades físicas e o ganho ponderal, tipo de parto e o desenvolvimento fetal. Novos estudos devem ser desenvolvidos com o objetivo de preencher essas lacunas, bem como propor recomendações acerca da intensidade, duração e freqüência das atividades físicas a serem realizadas durante a gestação.
