This study investigated objectively measured physical activity and sedentary time by sex, age socioeconomic status in a large representative sample of Swedish adolescents.In this cross-sectional national survey between 2016 2017, students aged 11-12, 14-15 17-18 years from 131 schools were invited to participate. Physical with accelerometers for seven consecutive days. Socioeconomic (parental education) country birth self-reported questionnaire. Weight height trained staff.A total 3477...

Abstract Background The coronavirus disease 2019 (COVID-19) pandemic had a huge impact on daily life, even in countries such as Sweden where the restrictions were relatively mild. This paper assesses effects of COVID-19 physical activity (PA) patterns, screen time, and sleep among Swedish adolescents. exposures explored include gender, parental education, anthropometrics, cardiovascular fitness (CVF). Methods Cohort data collected from September 26th to December 6th, 2019, April 12th June...

The COVID-19 pandemic has had major impact on the daily lives of adolescents. This study examined whether mental health outcomes changed over pandemic, and if such changes were related to in physical activity (PA), sedentary time, sleep, screen participation organized sports.In this longitudinal study, data collected autumn 2019 with follow-up measurements spring 2021. In total, 558 schools invited 34 around Stockholm a variation socioeconomic background included. Physical time measured for...

Objectives To investigate the associations between physical activity pattern, sports participation, screen time and mental health in Swedish adolescents. Design, setting participants A total of 1139 adolescents (mean age 13.4) from 34 schools participated cross-sectional study ‘Physical Activity for Healthy Brain Functions School Youth’ 2019. Methods Time spent sedentary moderate-to-vigorous (MVPA) was measured using accelerometers seven consecutive days. Screen participation were...

Most adolescents do not consume a high-quality diet, while self-reported mental health problems within this group are increasing. This study aimed to investigate the association between diet quality and health-related of life, explore differences in life gender parental education status. In cross-sectional study, detailed web-based recall method was implemented determine dietary intake, which analysed using newly developed Swedish Healthy Eating Index for Adolescents 2015 (SHEIA15) Riksmaten...

Abstract Purpose Mental health problems are increasingly prevalent during adolescence. Nutritional factors, particularly antioxidants, of interest due to their potential reduce oxidative stress and inflammation linked mental issues. However, the relationship between dietary antioxidants adolescent remains unclear. This study aimed investigate this association in Swedish adolescents explore gender differences. Methods Cross-sectional data were gathered among boys girls aged 13–14 years ( n =...

ABSTRACT Aim Investigate the longitudinal relationship between physical activity, organised fitness, screen time and academic performance among Swedish adolescents. Methods Data from 1139 adolescents at age 13, included vigorous activity (accelerometry), fitness (submaximal ergometer test), participation (self‐reported) (math grades ages 13 16 registry). Academic was categorised as A–D (higher or pass) E, F (fail at‐risk of failing). Multilevel logistic regression models were used to examine...

Knowledge about associations between school-based initiatives and physical activity patterns is limited. The purpose of this paper was to examine factors in the school environment, sedentary time during time. cross-sectional study included 1139 adolescents aged 13-14 from 34 schools. Physical were measured using hip-worn accelerometers. Factors environment health policy, a mobile phone ban breaks, organized activities breaks lessons reported by teachers. frequency duration education (PE)...

Cardiovascular fitness (CVF) has been associated with cardiovascular risk factors in adolescents. CVF levels are determined by non-modifiable and modifiable factors; one factor is physical activity (PA). There a lack of studies investigating the associations between PA patterns how gender, parental education, BMI status country birth CVF. The aim this study was to explore cross-sectional Swedish 13-14-year-old estimated using Ekblom-Bak submaximal test, data on were collected hip-worn...

Introduction The family is assumed to be fundamental in youth socialization processes and development, connected social cultural practices such as healthy lifestyles physical activity. However, gender patterns activity among adolescents the structural drivers of inequality (e.g., parentage siblingship) are poorly understood. aim this study was explore further how structures relate adolescents' time spent being sedentary physically active, using contemporary theory. Methods This...

Physical activity patterns in adolescents have been associated with general health. Stress, screen-time and sleep are other factors physical that influence health adolescents. accounts for several benefits; however, the impact of organised sports participation to achieve same benefits less explored. This study explored associations health, stress, sleep-duration

Abstract Background Dietary assessment methods that are user-friendly, simple, yet valid of interest to both researchers and participants, particularly for use in disadvantaged settings, where language barriers low levels education often present. We tested if parents taking photos what children ate, using mobile phones, would be a feasible, acceptable method could still provide information with adequate relative validity. Methods used mixed-methods design, 21 5- 7-year-olds from areas...

This study explored whether breakfast habits were associated with intake of fruits and vegetables, minutes in moderate-to-vigorous physical activity (MVPA), spent sedentary, screen time among adolescents. Cross-sectional data collected 13–14-year-old boys girls (n = 1139). Breakfast determined via questionnaire, fruit vegetable through dietary recall, sedentary accelerometers. Multilevel mixed models general estimation equation applied. Almost 40% participants skipped at least one day the...

In adults, prolonged periods of sitting have been linked to acute negative effects on vascular structure and function. The aim this study was evaluate the physical activity (PA) breaks during arterial stiffness, cortisol psychological factors in adolescents.Adolescents underwent different short (3-min) starting every 20 min, 80 min three separate days. Breaks were (A) social seated (SOC), (B) low-intensity simple resistance PA (SRA) (C) moderate-intensity step-up (STEP). stiffness measures...

Physical activity breaks are widely being implemented in school settings as a solution to increase academic performance and reduce sitting time. However, the underlying physiological mechanisms suggested improve cognitive function from physical frequency, intensity, duration of remain unknown. This study will investigate effects frequent, short during prolonged on task-related prefrontal cerebral blood flow, performance, psychological factors. Additionally, moderating mediating arterial...

Abstract Aim The aim of this study was to investigate self‐reported physical activity and sedentary behaviour by sex, age parental education in a large representative sample Swedish adolescents. Methods This is based on data from the national dietary survey Riksmaten Adolescents, which conducted Food Agency 2016–2017. In total, 3477 students grade five (11–12 years), eight (14–15 years) eleven (17–18 were included. A web questionnaire used collect information about behaviour. Results 53%...

Inorganic nitrate has been shown to acutely improve working memory in adults, potentially by altering cerebral and peripheral vasculature. However, this remains unknown adolescents. Furthermore, breakfast is important for overall health psychological well-being. Therefore, study will investigate the acute effects of on performance, task-related blood flow (CBF), arterial stiffness, outcomes Swedish

Physical activity (PA) breaks during school lessons have been suggested as a promising strategy to improve working memory performance in children and adolescents. There is lack of studies investigating the underlying physiological mechanisms PA on cognition, especially among This study aimed investigate effects different types short frequent adolescents' cognitive task-related changes cerebral blood flow prefrontal cortex (PFC) compared prolonged sitting. In this randomized crossover study,...

Abstract Background The covid-19 pandemic has had a large impact on the daily lives of adolescents, even in Sweden where restrictions were relatively mild. aim this study was to examine if there been change mental health outcomes and these changes related physical activity patterns before during pandemic. Methods In longitudinal study, data collected autumn 2019 follow-up measurements spring 2021. Physical sedentary time measured for seven consecutive days by accelerometry (Actigraph)....

Abstract Background Poor mental health among youth is a public concern. As half of the disorders occur before or during adolescence it important to investigate how modifiable lifestyle factors are associated with in this population. The association between physical activity patterns and has been studied but most studies rely on self-reported activity. This study aimed associations device-measured patterns, sports participation, screen time, Swedish adolescents. Methods Cross-sectional data...