RESUMOObjetivo: Avaliar relações entre a influência da mídia e o uso de redes sociais na imagem corporal (IC) de adolescentes do sexo feminino. Métodos: Estudo transversal realizado com meninas adolescentes estudantes de escola pública e de uma organização não governamental da capital e do interior de São Paulo. Além de variáveis sociodemográficas e antropomé-tricas, a avaliação da (IC) foi realizada pela Escala de Silhuetas Brasileiras. A influência da mídia foi avaliada pela subescala 1 de internalização geral da Escala de Atitudes Socioculturais em Relação à Aparência (SATAQ-3). Por fim, foram aplicadas perguntas sobre a frequência de acesso às mídias sociais e possível influência delas na IC. Resultados: Participaram 212 meninas (14,8; DP 1,69 anos), sendo a maioria eutrófica (65,1%), pertencentes às classes sociais D e E, com escolaridade materna correspondente ao ensino médio completo; 85,8% estavam insatisfeitas com a IC; a maioria desejava uma silhueta menor. As meninas que escolheram figuras menores como desejadas apresentaram valores superiores na SATAQ-3 (p < 0,001). O acesso diário maior de 10 vezes ao dia ao Facebook e Instagram aumentou a chance de insatisfação em 6,57 e 4,47 vezes, respectivamente. Conclusão: As mídias, incluindo as redes sociais, estão associadas à insatisfação da IC de meninas adolescentes.
ABSTRACTObjective: To evaluate relationship between media influence and use of social networks in the body image (BI) of female teenagers. Methods: Transversal study involving students of public school and non-governmental organization in Sao Paulo State, Brazil. Besides the social-demographic variables, the teenagers were evaluated about anthropometric measurements. For the evaluation of the BI it was used the Brazilian Scale of Silhouettes, and for the influence of the media it was used the subscale 1 of The Sociocultural Attitudes Towards Appearance Scale (SATAQ-3). Questions about the social media frequency of access were applied to measure the influence of these medias. Results: 212 females (14.8; DP 1.69 years) participate in the study, 65.1% normal weight range, belonging D and E social class, most of mother's been high school graduated; 85.8% were unsatisfied with BI and the majority desires a smaller silhouette. Those that chose smaller figures had higher values in the SATAQ-3 (p < 0.001). The daily access (more than 10 times) to Facebook and Instagram increased the chance to be BI unsatisfied 6.57 and 4.47 respectively. Conclusion: The media -including the social networks -is associated with BI dissatisfaction among female teenagers in our sample.
Objective:To assess the relationship between the degree of waist circumference (WC) and
nonalcoholic fatty liver disease (NAFLD) in obese adolescents of both genders,
analyzed according to quartiles of WC.Methods:Cross-sectional study that involved 247 obese adolescents aged 12–19 years. Mean
values of the nutritional parameters and serum analyses were compared with the
groups using the independent t-test. Pearson correlation
coefficient was used to determine the relationship of the parameters studied.
Chi-square test for trend was used to determine the relationship between the
prevalence of the NAFLD and WC quartile by gender.Results:NAFLD were presented in 60% of the study participants. Obese adolescents in the
3rd and 4th quartiles of WC presented higher prevalence of NAFLD when compared
with that in the 1st quartile in both genders. The NAFLD patients had
significantly higher values for body weight, BMI (body mass index), BAZ-score
(BMI-for-age z-scores), total fat (% and kg), WC, visceral fat, insulin, insulin
resistance index (HOMA-IR), aspartate aminotransferase and alanine
aminotransferase, when compared with non-NAFLD obese adolescents.Conclusions:In conclusion, the results presented here suggest that an increase in WC can
reliably predict the risk of NAFLD in obese adolescents. This is a low cost and
easy-to-use tool that can help in screening in adolescents.
To investigate the association between visceral adipose tissue loss and insulin resistance and hyperleptinemia in adolescents with obesity submitted to interdisciplinary weight-loss therapy. Methods: A total of 172 post-pubertal adolescents (body mass index greater than the 95th percentile of the Centers for Disease Control and Prevention reference growth charts) were recruited for the study. The adolescents were assigned to long-term weight-loss therapy. Body composition, visceral and subcutaneous fat, glucose metabolism, lipid profile, hepatic enzymes and leptin concentration were measured. After the therapy, the adolescents were allocated to three different groups according to the tertile of visceral fat reduction. Results: Positive effects on body composition were observed in all analysed groups independent of visceral fat reduction. It was found that visceral fat was an independent predictor of insulin resistance in the investigated population. Obese adolescents who lost a higher proportion of visceral adipose tissue (>1.8 cm) demonstrated improved metabolic and inflammatory parameters twice as much than those who presented smaller losses. Positive correlations between visceral fat reduction and glucose metabolism, lipid profile, hepatic enzymes and homeostasis model assessment of insulin resistance index were demonstrated. Conclusion: The magnitude of the reduction in visceral fat was an independent predictor of insulin resistance, hyperleptinemia and metabolic disorders related to obese adolescents.
The results presented here suggest that an increase in WC can reliably predict the risk of NAFLD in obese adolescents. This is a low cost and easy-to-use tool that can help in screening in adolescents.
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