Positive secular trend in excess body weight in adolescents: A comparative study of 2007 and 2017/2018 data.

Background: This study aimed to compare the prevalence of excess weight in adolescents living in Florianópolis, Santa Catarina, Brazil, from 2007 to 2017/2018 and assess associations with physical activity level, screen time, muscle strength, and cardiorespiratory fitness.

Methods: Two cross-sectional surveys were conducted with adolescents (14 to 19 years old). The body mass index was calculated from measurements of body weight (kg) and height (m2).

Mediation effects of lean mass and fat mass on the relationship between body mass index and handgrip strength.

Objective: This study aimed to assess the mediation effects of lean mass and fat mass on the relationship between body mass index (BMI) and handgrip strength (HGS) in adolescents.

Method: The sample included 118 adolescents (60 girls) aged 10-14 years. Body composition, determined from lean mass (LM) and fat mass (FM), was measured by dual-energy x-ray absorptiometry.

Analysis of the elaboration and proposal of a Brazilian intersectoral strategy for the prevention and care of childhood obesity.

The Brazilian Strategy for the Prevention and Care of Childhood Obesity (PROTEJA) aims to implement a set of actions to prevent obesity in Brazil. As such, this qualitative and descriptive documentary study presents the Strategy's stages of the operational design, general proposal, evaluation and monitoring conducted by the Brazilian Ministry of Health's technical coordination. After analyzing the epidemiological data on children and the existing policies aimed at obesity prevention, and reviewing the scientific literature and recommendations, PROTEJA was formulated and approved by the Brazilian Ministry of Health, and 1,320 municipalities committed to implementing 20 essential and 5 complementary actions, from 41, including some structural to improve environments.

Secular trends in body image dissatisfaction and associated factors among adolescents (2007-2017/2018).

Objective: To assess secular trends in body image dissatisfaction and associated factors among adolescents over a 10-year period (2007-2017/2018).

Methods: The sample included 1,479 (2007, n = 531; 2017/2018, n = 948) high school adolescents of both sexes, aged 14 to 18 years, of schools in a city in southern Brazil, in 2007 and 2017/2018. Data were collected on sex, age, physical activity (IPAQ, short form), anthropometric measurements (body weight, height, and triceps and subscapular skinfolds), and body image dissatisfaction (figure rating scale).

Handgrip strength and associated factors among Brazilian adolescents: A cross-sectional study.

Background: The handgrip strength (HGS) is an indicator of muscle strength associated with several health outcomes in adolescents and adults. This cross-sectional study aimed to identify HGS levels and associated modifiable and non-modifiable risk factors in adolescents.

Methods: The study included 971 adolescents (496 boys) aged 15-18 years.

Relationship Between Muscle Strength, Body Composition and Bone Mineral Density in Adolescents.

Adolescence is an important period for the acquisition of bone mass, which can be enhanced by several factors. This study aimed examine the relationships of handgrip strength, free-fat mass, and fat mass with bone mineral density in adolescents. 118 adolescents (60 girls), aged 10 to 14 years, participated in the study.

High waist-to-height ratio and associated factors in adolescents from a city in Southern Brazil: a cross-sectional study.

Objective: To verify the prevalence of abdominal obesity with the waist-to-height ratio (WHtR) and associated factors in adolescents from a city in Southern Brazil.

Methods: A total of 960 adolescents (494 boys) aged 15-18 years old participated in this study. The dependent variable was WHtR; independent variables were self-reported age, economic level, sexual maturation, physical activity level, screen time, and body fat.

Translation and validation of the Brazilian version of the Physical Appearance Comparison Scale-Revised in college women.

Brazilian women are known to present high levels of physical appearance concerns, and data suggest they often compare themselves with others. Nevertheless, there is no validated instrument to systematically assess appearance comparisons in the Brazilian population. Thus, this study aimed to translate the Physical Appearance Comparison Scale-Revised (PACS-R) into Brazilian Portuguese and evaluate its factor structure, internal consistency, and convergent validity in Brazilian college women.

Body image dissatisfaction in adolescents: Comparison with physical activity, teasing and social support.

This study aimed to compare the adolescents' body dissatisfaction with physical activity, teasing during physical activity and social support. Participants were 938 Brazilian adolescents aged 15-19 years. Study variables were investigated through questionnaires.

[Association between dissatisfaction with body image and health-related physical fitness among adolescents].

The scope of this study was to estimate the prevalence of dissatisfaction with body image and verify the association between dissatisfaction with thinness or with overweight and health-related physical fitness components among adolescents. Participants included 1058 adolescents (570 girls and 488 boys), with mean age of 16.3 (±1.

CROSS-CULTURAL ADAPTATION TO BRAZILIAN PORTUGUESE OF AN INSTRUMENT TO ASSESS TEASING DURING PHYSICAL/SPORTS ACTIVITY AMONG BRAZILIAN ADOLESCENTS.

Objective: To translate and adapt a questionnaire aimed to evaluate teasing during the practice of physical/sports activities in the adolescent population.

Methods: The whole process had six stages: four translations, elaboration of a synthesis version, two back-translations, evaluation by a committee of experts, test of pre-final version with the target population, and presentation of final version to a committee of experts. Thirty-eight adolescents aged between 11 and 18 years participated in the pre-final version test, all of them from the 6th grade of elementary school to senior year of high school in a public school of the state of Santa Catarina.

ASSOCIATION BETWEEN PERCEIVED STRESS IN ADOLESCENCE, BODY WEIGHT AND ROMANTIC RELATIONSHIPS.

Objective: To analyze the association between perceived stress in adolescence, body weight and romantic relationships.

Methods: Participants were 2,571 adolescents (56.1% female), with mean age of 16.

Body weight perception and body weight control behaviors in adolescents.

Objective: To investigate the association between the perception of body weight (as above or below the desired) and behaviors for body weight control in adolescents.

Methods: This was a cross-sectional study that included 1051 adolescents (aged 15-19 years) who were high school students attending public schools. The authors collected information on the perception of body weight (dependent variable), weight control behaviors (initiative to change the weight, physical exercise, eating less or cutting calories, fasting for 24h, taking medications, vomiting, or taking laxatives), and measured body weight and height to calculate the body mass index and then classify the weight status.

[Sociodemographic factors and body image among high school students].

The scope of this article is to investigate associations between body image dissatisfaction and sociodemographic indicators among adolescents. Participants included 1126 high school students in the city of Santa Maria in the State of Rio Grande do Sul. Aspects regarding body image dissatisfaction and sociodemographic indicators were analyzed.