Search

Aims: The aim of this study was to verify body composition, cardiorespiratory fitness, and biochemical markers of prepubertal overweight and obese boys to a 16-week futsal training program. Methods: Sixteen boys (age: 7-10 y, body mass index>thanat 95th percentileaccording to Center for Disease Control and Prevention; 35.5±7.4 percent fat) participated to futsal training program. The assessment of body composition was estimated using skinfold thickness, and the following variables were evaluated: total body mass, body mass index, body fat percentage, and lean body mass. Aerobic fitness measurementwas performed by gas exchange analysis in treadmill. In addition, an evaluation of the biochemical profile was conducted: triglycerides, total cholesterol, low density lipoprotein cholesterol, high-density lipoprotein cholesterol, plasma concentrations of glucose, and insulin. The futsal intervention included 60-min sessions performed two times/week. The mean intensity during training was between 57 to 88% of maximal heart rate of the age-predicted. Individual portable heart rate monitor controlled training intensity. Results: Significant increases in total body mass (4%), height (3%), lean body mass (8%), and significant 6%-decrease in body fat percentage was observed. Body mass index remained unchanged. Maximal oxygen uptake was elevated (p

OBJETIVO: Estudar a prevalência da síndrome metabólica em adolescentes acompanhados em ambulatório de obesidade. MÉTODOS: Foram avaliados 84 adolescentes com idades entre dez e 19 anos, divididos em dois grupos, de acordo com o escore Z do índice de massa corpórea (Z IMC), sendo um o grupo de adolescentes com sobrepeso (GSP) e o outro, o grupo de adolescentes obesos (GOB). GSP: Z IMC>1 e 2 (2,4±0,6, 32M/26F). Três ou mais dos critérios a seguir foram considerados no diagnóstico da síndrome metabólica e avaliados pelo teste do qui-quadrado entre os grupos: Z IMC>2; triglicérides em jejum >130mg/dL; lipoproteína de alta densidade 100mg/dL ou homeostatic model assessment index (HOMA) >2,5; elevação da pressão arterial acima do percentil 90 ajustada para gênero, estatura e idade. RESULTADOS: A prevalência da síndrome metabólica esteve significantimente elevada nos adolescentes obesos (GOB: 40% versus GSP: 4%, p=0,0008). O grupo GOB mostrou maiores valores referentes a insulinismo (54% versus 19%, p=0,003), HOMA (66% versus 38%, p=0,01) e trigliceridemia (21% versus 4%; p=0,04). CONCLUSÕES: É importante que o pediatra fique atento aos sinais de síndrome metabólica em adolescentes obesos. A detecção precoce pode ser feita por meio de simples parâmetros e permite a adoção de medidas preventivas para o desenvolvimento da doença cardiovascular em adolescentes.OBJECTIVE: Evaluate the prevalence of metabolic syndrome in adolescents followed in an outpatient obesity clinic. METHODS: 84 adolescents (ten to 19 years old) were divided in two groups, one composed by overweight adolescents (OWG) and the other, by obese adolescents (OBG), according to Z scores of the body mass index (Z BMI). OWG: Z BMI>1 and 2 (2.4±0.6; 32M/26F). Three or more criteria were considered to define the presence of metabolic syndrome and tested by chi-square: Z BMI>2; fasting triglycerides >130mg/dL; high-density lipoprotein cholesterol 100mg/dL or homeostatic model assessment index (HOMA) >2.5 and blood pressure above the 90th percentile, adjusted for age, gender and length. RESULTS: The prevalence of metabolic syndrome was significantly elevated in obese adolescents (OBG: 40% versus OWG: 4%, p=0.0008). The major differences between groups were observed regarding the presence in OBG adolescents of hyperinsulinism (54% versus 19%, p=0.003), HOMA (66% versus 38%, p=0.01) and hypertriglyceridemia (21% versus 4%, p=0.04). CONCLUSIONS: It is important to be aware of the early signs of metabolic syndrome in obese adolescents, which can be screened by simple techniques. As the syndrome correlates to chronic illnesses, early detection and adequate prevention by pediatricians is mandatory.

OBJETIVO: Estudar a prevalência da síndrome metabólica em adolescentes acompanhados em ambulatório de obesidade. MÉTODOS: Foram avaliados 84 adolescentes com idades entre dez e 19 anos, divididos em dois grupos, de acordo com o escore Z do índice de massa corpórea (Z IMC), sendo um o grupo de adolescentes com sobrepeso (GSP) e o outro, o grupo de adolescentes obesos (GOB). GSP: Z IMC>1 e 2 (2,4±0,6, 32M/26F). Três ou mais dos critérios a seguir foram considerados no diagnóstico da síndrome metabólica e avaliados pelo teste do qui-quadrado entre os grupos: Z IMC>2; triglicérides em jejum >130mg/dL; lipoproteína de alta densidade 100mg/dL ou homeostatic model assessment index (HOMA) >2,5; elevação da pressão arterial acima do percentil 90 ajustada para gênero, estatura e idade. RESULTADOS: A prevalência da síndrome metabólica esteve significantimente elevada nos adolescentes obesos (GOB: 40% versus GSP: 4%, p=0,0008). O grupo GOB mostrou maiores valores referentes a insulinismo (54% versus 19%, p=0,003), HOMA (66% versus 38%, p=0,01) e trigliceridemia (21% versus 4%; p=0,04). CONCLUSÕES: É importante que o pediatra fique atento aos sinais de síndrome metabólica em adolescentes obesos. A detecção precoce pode ser feita por meio de simples parâmetros e permite a adoção de medidas preventivas para o desenvolvimento da doença cardiovascular em adolescentes. OBJECTIVE: Evaluate the prevalence of metabolic syndrome in adolescents followed in an outpatient obesity clinic. METHODS: 84 adolescents (ten to 19 years old) were divided in two groups, one composed by overweight adolescents (OWG) and the other, by obese adolescents (OBG), according to Z scores of the body mass index (Z BMI). OWG: Z BMI>1 and 2 (2.4±0.6; 32M/26F). Three or more criteria were considered to define the presence of metabolic syndrome and tested by chi-square: Z BMI>2; fasting triglycerides >130mg/dL; high-density lipoprotein cholesterol 100mg/dL or homeostatic model assessment index (HOMA) >2.5 and blood pressure above the 90th percentile, adjusted for age, gender and length. RESULTS: The prevalence of metabolic syndrome was significantly elevated in obese adolescents (OBG: 40% versus OWG: 4%, p=0.0008). The major differences between groups were observed regarding the presence in OBG adolescents of hyperinsulinism (54% versus 19%, p=0.003), HOMA (66% versus 38%, p=0.01) and hypertriglyceridemia (21% versus 4%, p=0.04). CONCLUSIONS: It is important to be aware of the early signs of metabolic syndrome in obese adolescents, which can be screened by simple techniques. As the syndrome correlates to chronic illnesses, early detection and adequate prevention by pediatricians is mandatory.