Sexual Maturation
Mostrando 1-12 de 132 artigos, teses e dissertações.
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1. Association between abdominal obesity, screen time and sleep in adolescents
Abstract Objective: To assess the association between abdominal obesity, food intake, sleep deprivation, and screen time in adolescents. Methods: This cross-sectional study was conducted with 432 adolescents aged 14–19 years, from public and private schools. Anthropometric and body composition measures included body weight, waist circumference, body mass
Jornal de Pediatria. Publicado em: 2023
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2. Association of sex, sexual maturation, age group, economic class, and nutritional status with the different cutoff points of screen time in adolescents
Resumo Objetivos: estimar a prevalência de tempo de tela de adolescentes em três diferentes cenários e possíveis associações com sexo, maturação sexual, faixa etária, classe econômica e estado nutricional. Métodos: estudo transversal realizado com amostra representativa de 3.979 adolescentes da Grande Curitiba. O tempo de tela (televisão, compu
Revista Brasileira de Saúde Materno Infantil. Publicado em: 2022
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3. Association between handgrip strength and bone mass parameters in HIV-infected children and adolescents. A cross-sectional study
ABSTRACT BACKGROUND: Low bone mineral content (BMC) and bone mineral density (BMD) have been identified in human immunodeficiency virus (HIV)-infected children and adolescents. The direct adverse effects of HIV infection and combined antiretroviral therapy (ART) negatively contribute to bone metabolism. A direct relationship between muscle strength levels a
Sao Paulo Med. J.. Publicado em: 2021-08
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4. Influence of Family History of Diabetes on Cardiac Autonomic Dysfunction of Adolescents
Abstract Background To evaluate cardiac autonomic modulation of adolescents with a family history of diabetic parents. Objective This study aims to evaluate the influence of a family history of diabetes on cardiac autonomic modulation. Methods This is an analytical and cross-sectional study on adolescents between 11 and 18 years of age, of both genders
Int. J. Cardiovasc. Sci.. Publicado em: 2020-07
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5. Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no intera
Braz. J. Poult. Sci.. Publicado em: 11/11/2019
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6. Ploidy influences on metabolic substrate deposition of rainbow trout
ABSTRACT. Triploid fish are usually sterile. Thus, the energy and nutrients intended for sexual maturation may be available to enhance flesh quality and physical growth. The present study aimed to investigate differences in the metabolic substrates, lipids and proteins, between storage tissues from diploid and triploid female rainbow trout. Monthly, metaboli
Acta Sci., Anim. Sci.. Publicado em: 24/10/2019
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7. ADRB2 GLN27GLU POLYMORPHISM ASSOCIATED WITH ADIPOSITY INDICATORS AND IL-10 IN ADOLESCENTS
RESUMO Introdução: Estudos de associação entre a obesidade e fatores genéticos têm demonstrado a significativa contribuição de polimorfismos relacionados à distribuição de gordura corporal e processo inflamatório subclínico. Objetivo: Investigar a associação entre os genótipos do polimorfismo Gln27Glu do gene ADRB2 e indicadores de adiposid
Rev Bras Med Esporte. Publicado em: 29/07/2019
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8. Population and reproductive parameters of the red-tailed catfish, Phractocephalus hemioliopterus (Pimelodidae: Siluriformes), from the Xingu River, Brazil
RESUMO Um estudo de campo sobre a proporção sexual, relação peso-comprimento, tamanho de primeira maturação gonadal e o período reprodutivo da pirarara, Phractocephalus hemioliopterus foi realizado na região do Médio Rio Xingu, na Amazônia oriental. Os espécimes foram coletados trimestralmente entre setembro de 2012 e janeiro de 2014, utilizando r
Neotrop. ichthyol.. Publicado em: 18/07/2019
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9. IMPACT OF PHYSICAL ACTIVITY CORRELATES IN THE ISOLATED AND COMBINED PRESENCE OF INSUFFICIENT LEVEL OF PHYSICAL ACTIVITY AND HIGH SCREEN TIME AMONG ADOLESCENTS
RESUMO Objetivo: Identificar o impacto dos correlatos da atividade física (AF) com a presença isolada e a combinada da prática insuficiente de AFs e do elevado tempo de tela em adolescentes. Métodos: Estudo transversal, representativo, com amostra de 786 adolescentes (16,2±1,1 anos; 53,9% de meninas) selecionados aleatoriamente nas escolas de São J
Rev. paul. pediatr.. Publicado em: 21/01/2019
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10. Comparison of lumbar force between pubertal and post-pubertal adolescents: interference of physical growth, body fat and lifestyle.
Abstract Aim: To compare performance in the lumbar force test in pubertal and post-pubertal adolescents by controlling the interference of physical growth, body fat, screen time and physical activity. Methods: A cross-sectional study with 933 adolescents (492 girls) aged 14-19 from the city of São José, Brazil. Lumbar strength was assessed using the iso
Motriz: rev. educ. fis.. Publicado em: 08/01/2018
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11. Comparison of three criteria for overweight and obesity classification among adolescents from southern Brazil
Abstract AIM To estimate the prevalence of the classifications of overweight and obesity in adolescents according to three criteria for nutritional status classification (Conde & Monteiro, International Obesity Task Force - IOTF and Word Health Organization - WHO), and to investigate whether sociodemographic factors associated with overweight and obesity di
Motriz: rev. educ. fis.. Publicado em: 08/01/2018
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12. The effects of an after-school intervention program on physical activity level, sedentary time, and cardiovascular risk factors in adolescents
Abstract Aim: To ascertain the effects of an after-school intervention on physical activity levels and cardiovascular risk factors in adolescents from Campinas, Brazil. Methods: This was an intervention study with 71 adolescents that was carried out in two schools, randomly assigned to a control group (CG:n=45) or an intervention group (IG:n=26). We perf
Motriz: rev. educ. fis.. Publicado em: 27/11/2017