Association between the practice of fitness-related exercises and body image dissatisfaction in adolescents from Curitiba (PR), Brazil.

Objective: The aim of this study was to analyze the association between participation in fitness-related exercises (FRE) and body image dissatisfaction (BID) in adolescents and evaluate the interaction between physical exercise and nutritional status in this association.

Methods: A cross-sectional study was conducted in 2015 involving 799 adolescents (10-16 years old) from 14 public schools in Curitiba (PR), Brazil. BID was assessed using the Body Shape Questionnaire and the Silhouette Scale.

Association between bullying victimization and health risk behavior in adolescents.

Objective: The aim of this study was to examine the association between bullying victimization and health risk behaviors in adolescents.

Methods: A representative sample of 1020 adolescents participated in the study. The variables such as bullying, health risk behaviors (tobacco, drugs, alcohol, sedentary behavior, smartphone use, level of physical activity, and sleep), and economic status were assessed using self-reported questionnaires.

Exposure to Smartphones and Tablets, Physical Activity and Sleep in Children From 5 to 10 Years Old: A Systematic Review and Meta-Analysis.

Objective: To conduct a systematic review and meta-analysis to verify the association between smartphone/tablet exposure and physical activity sleep in children from 5 to 10 years old. Data Source: This study followed the guidelines of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and included studies that met eligibility criteria based on the "PECO" strategy: participants (children from 5 to 10 years old), exposure (smartphone and tablet use), and outcome (physical activity and sleep).

Study Inclusion And Exclusion Criteria: The inclusion criteria were observational studies published in indexed scientific journals and written in Portuguese, English, and Spanish that verified the association of exposure to smartphones/tablets with physical activity and sleep in children aged 5 to 10 years of both sexes.

Physical activity as a mediator of the association of body mass index change with anxiety/depression symptoms in Brazilian adults during COVID-19.

Background: the COVID-19 pandemic has impacted people's behaviors and mental health around the world. Aim: to verify the mediating role of physical activity (PA) level in the relationship between body mass index (BMI) and anxiety and depression symptoms in adults during the COVID-19 pandemic. Methods: this is a cross-sectional study with Brazilian adults aged ≥ 18 years (N = 2000, 59.

Are parental physical activity and social support associated with adolescents' meeting physical activity recommendations?

Objective: To verify whether parental physical activity and social support are associated with adolescents meeting physical activity recommendations.

Methods: This is a cross-sectional study that selected 1,390 adolescents (59.6% girls) from Curitiba, Paraná, Brazil.

Is Greater Social Support from Parents and Friends Related to Higher Physical Activity Levels among Adolescents?

Increasing physical activity levels during adolescence have been put on the agenda by several researchers. This study verified the association between social support from parents and friends and different amounts of moderate-to-vigorous physical activity (MVPA) among adolescents in public school. The present study had a cross-sectional design and included a representative sample of 1984 adolescents (aged 15-17).

Association of the Practice of Physical Activity and Dietary Pattern with Psychological Distress before and during COVID-19 in Brazilian Adults.

To verify the association between the practice of physical activity and dietary patterns and psychological distress before and during the lockdown due to COVID-19, a cross-sectional study was performed with 2000 Brazilians (mean [M] = 35.78 years; standard deviation [SD] = 11.20; 59.

Time trends of physical inactivity in Brazilian adults from 2009 to 2017.

Objective: The aim was to evaluate the changes in the prevalence of physical inactivity in the Brazilian adults from 2009-2017.

Methods: This study used a time-series research design based on the cross-sectional data of 462,498 Brazilian adults from 2009-2017. Participants were classified as physically inactive if they indicated not participating in physical activity in the last three months.

[Changes in tobacco and alcoholic beverage consumption among adolescents from Curitiba in the State of Paraná: a longitudinal study].

The scope of this study was to verify alterations in cigarette and alcohol consumption in a sample of adolescents from the state education system of the city of Curitiba in the State of Paraná between 2015 and 2017. It involved a longitudinal prospective cohort study conducted with 799 adolescents (11 to 15 years of age) between 2015 and 2017. The Youth Risk Behavior Surveillance System (YRBS) questionnaire evaluated mild and excessive alcohol and tobacco consumption.

Frequency of physical activity and stress levels among Brazilian adults during social distancing due to the coronavirus (COVID-19): cross-sectional study.

Background: The COVID-19 pandemic may be having many psychological impacts on people, at both an individual and a community level.

Objective: To ascertain the relationship between the weekly frequency of physical activity and levels of stress among Brazilian adults during social distancing due to the coronavirus (COVID-19), and the interaction of sex in this association.

Design And Setting: Cross-sectional study with a descriptive approach conducted at a public university in Curitiba (PR), Brazil.

Time spent in different sedentary activity domains across adolescence: a follow-up study.

Objective: This longitudinal study aimed to verify possible changes in the time spent in sedentary activities occurring as screen-time, educational, cultural, social, and transportation domains in a sample of Brazilian adolescents between 2015 and 2017.

Methods: It is a longitudinal prospective study with 586 adolescents from 12 to 15 years old at the Baseline (2015) enrolled in 14 public schools from Curitiba, Brazil. The Adolescent Sedentary Activity Questionnaire assessed the time spent in sedentary activities in five domains (recreational screen-time, educational, cultural, social, and transportation).

Meeting the Physical Activity Recommendations and Its Relationship with Obesity-Related Parameters, Physical Fitness, Screen Time, and Mediterranean Diet in Schoolchildren.

The up-to-date scientific evidence suggests that adequate levels of physical activity provide essential health benefits for children and adolescents and help to maintain a healthy body weight. In this sense, children and adolescents should at least accumulate 60 min of moderate-to-vigorous physical activity in a daily basis to achieve these benefits and be considered active. Likewise, some lifestyle-related elements may interact with each other in an antagonistic or synergistic way to modify physical activity status.

[Body image among adolescents: the association between nutritional status and physical activity].

The aim of this article is to verify the association between nutritional status and physical activity with the perception of body image satisfaction in a sample of adolescents from Curitiba, State of Paraná. The sample consisted of 844 adolescents of 11 to 17 years of age. The level of physical activity was evaluated by the Physical Activity Questionnaire for Adolescents.

Prevalence and factors associated with active transportation to school for adolescents.

Objective: To verify the prevalence and factors associated with active transportation to school (ATS) among Brazilian adolescents attending public schools.

Methods: Crossectional study with a representative sample of 1,984 adolescents (55.9% girls).

[Insufficient physical activity levels and high screen time among adolescents: impact of associated factors].

The scope of this study was to verify the impact of associated factors with insufficient physical activity levels and high screen time among adolescents. A cross-sectional and representative study was conducted with 899 public high school adolescents from São José dos Pinhais, Paraná, Brazil. It involved measurement of physical activity levels and screen time and classification according to the norms of the World Health Organization and the American Academy of Pediatrics.

CORRELATES OF PHYSICAL ACTIVITY IN ADOLESCENTS OF PUBLIC SCHOOLS IN CURITIBA, PARANÁ, BRAZIL.

Objective: To verify the association of nutritional status, biological maturation, social support and self-efficacy with the physical activity level of 2,347 students of both sexes, aged between 11 and 15 years old, enrolled in state schools in the city of Curitiba, Paraná, Brazil.

Methods: Anthropometric measurements of body mass, height and sitting height were collected. The assessment of biological maturation was based on the analysis of the age at peak height and sexual maturity.

[Interaction of sociodemographic factors in the association between psychosocial factors and active commuting to school].

The study aimed to analyze the interaction of sociodemographic factors in the association between psychosocial factors and active commuting to school. This was a cross-sectional study in 2018 with a sample of 1,984 students. The target sociodemographic factors were sex, age, parents' schooling, and socioeconomic status.

ASSOCIATION BETWEEN PHYSICAL ACTIVITY PRACTICE AND CLUSTERING OF HEALTH RISK BEHAVIORS IN ADOLESCENTS.

Objective: To verify the association between participation in physical activity (PA) and the clustering of health risk behaviors (HRB) in adolescents of both genders.

Methods: A cross-sectional study involving 862 adolescents (11 to 17 years old) enrolled in 14 randomly selected public schools from Curitiba, Paraná, Brazil. Participation in PA, screen time, consumption of fruit, vegetables, cigarettes and alcoholic beverages were the criteria evaluated.

Comprehensive analysis of gene in hereditary hemochromatosis and in diseases associated with acquired iron overload.

Background: Patients with hepatitis C virus (HCV) and hepatocellular carcinoma (HCC) may or not develop iron overload (IO), which is associated with worst prognosis, because can cause serious damage to organs. gene controls the iron uptake from gut, particularly in patients with hereditary hemochromatosis (HH).

Aim: To identify associations between coding region in patients exhibiting hereditary hemochromatosis and in diseases associated with acquired IO.

Metabolic risk factors clustering among adolescents: a comparison between sex, age and socioeconomic status.

The aim was to compare the metabolic risk factors (MRF) between sex, age and socioeconomic status in a sample of adolescents from Curitiba, Brazil. A cross-sectional school-based study was conducted on 997 adolescents (429 boys) aged 12-17 years old from public schools. Total Cholesterol (TC), LDL-c, HDL-c, Triglycerides, Glycemia, Blood Pressure, waist circumference and body mass index were measured.

IMPACT OF PHYSICAL ACTIVITY CORRELATES IN THE ISOLATED AND COMBINED PRESENCE OF INSUFFICIENT LEVEL OF PHYSICAL ACTIVITY AND HIGH SCREEN TIME AMONG ADOLESCENTS.

Objective: To identify the impact of physical activity correlates with the isolated and combined presence of insufficient physical activity and high screen time among adolescents.

Methods: A cross-sectional representative study was carried out with a sample of 786 adolescents (16.0±1.

[Reproducibility of a questionnaire on physical activity among school students from 9 to 15 years of age].

The objective of this study was to analyze the "test-retest" reproducibility of a questionnaire on physical activity among 1189 school students of both genders, from 9 to 15 years age in public schools in Curitiba/PR. The reproducibility of the questionnaire was determined by the repeated measures procedure called "test-retest", with an interval of one week between applications. For data analysis the Intraclass Correlation Coefficient (ICC), the percentage of correlation, the Kappa index, adjusted Kappa (Kappa PABAK) and Bland-Altman scatter diagram were used.

ASSOCIATION BETWEEN WEIGHT-TEASING AND PHYSICAL ACTIVITY IN ADOLESCENTS.

Objective: The aim of the study was to determine the association between weight-teasing and physical activity in students from public schools of Curitiba, Paraná (Southern Brazil).

Methods: The sample consisted of 95 students (48 boys and 47 girls) aged 12 to 14 years old. The Perception of Weight Teasing (POTS) and The Perception of Weight Teasing during Physical Activity Scale assessed the frequency of weight-teasing experienced by the participants.

Promoting physical activity for children and adolescents in low- and middle-income countries: An umbrella systematic review: A review on promoting physical activity in LMIC.

Objective: It is unknown how much previous reviews on promoting physical activity (PA) for children and adolescents (aged 6-18years) take into account studies from low- and middle-income countries (LMIC, based on the World Bank definition) and the level of evidence of the effect of PA interventions in this population. This study aims to answer such questions using an umbrella systematic review approach.

Methods: We searched for peer-reviewed systematic reviews and original studies in eight electronic databases, screening of reference lists and expert contacts.