Yolanda Demetriou

University of Tübingen | EKU Tübingen

Background: Active commuting to school (e.g., walking or cycling) can contribute to an increase in daily physical activity time of adolescents which is associated with positive health effects. However, it is known that the perceived barriers related to the physical and social environment hinder adolescents in participating in active commuting. To o...

Objectives: The increase in physical activity and the reduction of sedentary time can have positive effects on children´s health. The concept of Moving School was developed to reduce students’ sitting time and has evolved in a broadly used concept. Method: This study aims to analyse the degree of the implementation of the concept at secondary schoo...

According to Germany’s 2022 Report Card, the prevalence of overall physical activity among children and adolescents is poor (D-). Cycling to/from school is one possibility among others to increase physical activity. We developed an intervention based on the self-determination theory in previous research to promote a more self-determined form of mot...

Objective The aim of this process evaluation study was to investigate fidelity, acceptance, applicability and movement time with respect to the health- and fitness-related GEKOS program ( Förderung bewegungsbezogener Gesundheitskompetenz im Sportunterricht ) linking theory and practice in physical education. Methods Fidelity was investigated by ob...

The German Report Card on Physical Activity for Children and Adolescents 2022 provides a summary and a comprehensive evaluation of physical activity levels and correlated indicators using the Active Healthy Kids Canada grading framework. The 2022 German Report Card, established by the Active Healthy Kids Germany (AHK Germany) expert panel, describe...

Background Physical fitness is a health marker in youth and is associated with current and future health. Objective Present the healthy fitness zone (HFZ) prevalence and age‐specific fitness profile of young people from seven European countries. Methods This study used data from the European Fitness Monitoring System project. The sample comprised...

This systematic review assesses the methodological quality of manuscripts focusing on scales that explicitly measure nature connectedness. A literature search in six electronic databases was conducted using a search strategy based on PICO guidelines. Only peer-reviewed primary research available in and BehaviorTiscareno-Osorno et al. research-artic...

Active travel in everyday life offers the opportunity to increase physical activity (PA), supports young people in their development, and is more sustainable than motorized travel. The environmental awareness of young people can be influenced by parents and can lead them to choose mainly active travel modes. Since parents can have a strong impact o...

Active travel can contribute to multiple health benefits in youth. Previous research has identified several factors influencing travel behavior. This study investigates how adolescents process these factors during their decision-making process on travel mode choice. Semi-structured interviews were conducted with 13 adolescents (11–14 years) and ana...

Objective The present study aims to understand the familial decision-making process on transport mode choice in adolescents with a focus on the parental perspective within this process. Background Active travel contributes to adolescents’ overall physical activity and its positive health effects. Based on the social-learning theory, especially par...

This study comprehensively describes travel behavior to various destinations among adolescents from Germany aged 11-15 years and how this varies according to residential location type and adolescents' socio-demographics. Overall, more than a half of adolescents use active transport modes to reach school and non-school destinations. Prevalence of pa...

The roles of physical activity and the reduction in sedentary activities in the healthy physical, psychosocial and mental development of children and adolescents are undisputed. This is where the concept of Moving School comes in, which has been expanded to a holistic approach that takes into account all areas of the school, including lessons, afte...

Introduction Despite the health benefits, a large proportion of girls and boys in Europe do not travel to school actively. A better understanding of the correlates associated with this behavior could guide interventions. This study examines perceived social and environmental correlates of active travel to school (ACTS) from the 2017/18 Health Behav...

Active travel in adolescence contributes to improved health outcomes. Self-Determination Theory suggests that motivation and basic psychological needs influence travel behavior. Person-centered approaches can examine interrelationships of these constructs underlying travel behavior. The aim of this study was to investigate (i) which clusters can be...

Background: Active travel behavior such as walking and cycling is associated with several health benefits. Especially the family environment seems to be important for active travel in children and adolescents. Currently, little is known regarding travel behavior in leisure time and associations of travel behavior within parent-adolescent dyads. M...

Background According to the ActivityStat hypothesis more physical activity (PA) in one timespan is compensated by increased sedentary time (ST) in the following timespan and vice versa to maintain an overall stable PA level. Until now, existing literature revealed inconsistent results regarding compensatory behaviour across children and adolescents...

Background: The Global Matrix 4.0 on physical activity (PA) for children and adolescents was developed to achieve acomprehensive understanding of the global variation in children’s and adolescents’ (5–17 y) PA, related measures, and keysources of influence. The objectives of this article were (1) to summarize the findings from the Global Matrix 4.0...

Background: The Global Matrix 4.0 on physical activity (PA) for children and adolescents was developed to achieve a comprehensive understanding of the global variation in children’s and adolescents’ (5–17 y) PA, related measures, and key sources of influence. The objectives of this article were (1) to summarize the findings from the Global Matrix 4...

Active travel (using an active mode of transport such as walking or cycling) contributes to the accumulation of daily physical activity and thus holds potential for promoting health. To promote active travel among adolescents an in-depth understanding of determinants from a sex/gender perspective is needed. Within Self-Determination Theory (SDT), i...

Promoting mental health addresses a global societal challenge. Nature connectedness, or relatedness to natural systems, is associated with increased well-being and mental health. Among urban populations, nature connectedness has been reported as lower. Nature connectedness in urban settings has been somewhat overlooked by researchers. This cross-se...

Promoting mental health addresses a global societal challenge. Nature connectedness, or relatedness to natural systems, is associated with increased well-being and mental health. Among urban populations, nature connectedness has been reported as lower. Nature connectedness in urban settings has been somewhat overlooked by researchers. This cross-se...

Background: To promote active commuting to and from school, it is pertinent to understand the motivational factors that influence the choice of this form of transportation. Objective: Translation, cultural adaptation and analysis of the factor structure as well as psychometric properties of the Basic Psychological Needs and Satisfaction in Activ...

Introduction: Active travel is an important source of physical activity and a primary contributor to overall health among adolescents. To understand and promote active travel behaviour in adolescents, developing a more robust understanding of the predictors of active travel and its associated decision-making processes is needed. Situated within a...

This study aimed to translate and adapt the psychometric properties of the Behavioural Regulation in Active Commuting to School (BR-ACS) questionnaire to young Portuguese students. This study had two stages: (1) translation and adaptation of the questionnaire; (2) evaluation of the psychometric properties. A sample of 338 participants (212 female,...

Active commuting to and from school (ACS) is a strategy to enhance physical activity levels in youths. To promote ACS, it is important to understand the factors that lead to this behaviour. With this in mind, an adaptation of the Basic Psychological Needs in Exercise Scale for ACS was developed, named the Basic Psychological Need Satisfaction in Ac...

A central goal of physical education (PE) is to empower students to be physically active in a health-enhancing way. Therefore, using a competence-based approach, the objective of the health- and fitness-related PE intervention ‘Promotion of physical activity-related health competence in PE’ (GEKOS) was to address practical and theoretical content r...

Fostering health-related fitness knowledge is a common goal across physical education curricula. However, carefully developed knowledge tests that satisfy the psychometric criteria of educational assessment are lacking. Therefore, two studies were conducted to evaluate a newly developed health-related fitness knowledge test within the framework of...

Background: Despite a high rate of bicycle ownership, the prevalence of cycling to school among children and adolescents in Germany has been constantly low. Cycling to school can contribute to meeting the physical activity recommendations, which the majority of children and adolescents in Germany do not meet. Methods: By using intervention mapping,...

Aim Regular physical activity and low levels of sedentary time have positive health effects on youth, and data are needed to base public health recommendations on. Here, findings of device-based physical activity and sedentary time in sixth graders are presented. Data below are presented as mean (SD). Subject and methods Three hundred and eight si...

Aim The main objectives of this systematic review were to evaluate the effects of interventions on leisure-time PA of boys and girls and to appraise the extent to which studies have taken sex/gender into account. Subject and methods PRISMA guidelines were followed. Two researchers independently screened studies for eligibility and assessed the ris...

Background Latest studies indicated that the general mental health level is low during the pandemic. Probably, this deterioration of the mental health situation is partly due to declines in physical activity. The aim of this study was to investigate differences in and the association between affective wellbeing and levels of different domains of ph...

Background: The present study investigates the role of different sources of social support in the relationship of BMI and PA in an international sample of children and adolescents. Methods: Data included 170,211 adolescents (51.5% female), aged 10–16 (M = 13.6, SD = 1.64) from 37 European countries/ regions and were retrieved from the 2013/14 Healt...

Physical inactivity is an increasing problem worldwide, but especially among girls. This difference by gender increases with age. Schools serve virtually all young people in most parts of the world and can thus play an important role in promoting physical activity. In this systematic review, we qualitatively and comprehensively assessed the treatme...

Background Physical activity recommendations are reached by only a small part of the population. A common problem is that research findings on public health-related topics such as physical activity promotion are oftentimes not translated into practice. The involvement of relevant stakeholders, such as change agents (role models, decision-makers, an...

Analyzing students’ emotional experience in physical education (PE) is of crucial importance as it may fill an important gap in research examining the role of PE for students’ leisure-time physical activity (PA). Based on the control-value theory of achievement emotions, the purpose of this study was to test the assumption that multi-dimensional au...

Der vorliegende Beitrag gibt einen Überblick über Formen der Bewegungsförderung im Setting Schule und umfasst dabei präventive und gesundheitsförderliche Maßnahmen, die an weiterführenden Schulen umgesetzt werden können. Aus wissenschaftlicher Sicht besteht hinsichtlich der Bewegungsförderung an weiterführenden Schulen erhöhter Bedarf an effektiven...

Physical fitness (PF) is a multi-component construct and a biomarker of health. Worse PF is related to vulnerability and predicts worse academic achievements. Thus, assessing PF is important to monitor health in youth. This systematic review aimed to identify and inform physical education, health professionals and entities about existing PF batteri...

Background: Physical inactivity is often reported in youth and differs among boys and girls. The aim of this study is to assess sex/gender considerations in intervention studies promoting physical activity and reducing sedentary behavior in youth using a sex/gender checklist. Methods: A systematic search was conducted in August 2018 to identify...

The main purpose of this cluster randomised controlled trial was to investigate the effects of a physical education (PE) intervention programme combining theoretical and practical components on students' knowledge, skills, abilities and motivation related to competence for a healthy active lifestyle. The intervention used learning tasks to combine...

Zusammenfassung Die Förderung eines aktiven und gesunden Lebensstils ist eine wichtige Aufgabe der Schule und des Sportunterrichts. Interventionsprogramme in diesem Setting besitzen zudem einen hohen Stellenwert zur Förderung körperlicher Aktivität von Kindern und Jugendlichen. Um die Wirksamkeit dieser Interventionsprogramme zu erfassen, ist eine...

The aim of this systematic review was to examine where physical activity (PA) takes place and how much time children, adolescents and adults spend being physically active within the identified locations. A systematic literature search was carried out in five electronic databases (PubMed, CINAHL, SPORTDiscus, PsycInfo, Scopus). For inclusion, primar...

Background: Physical activity recommendations are only reached by a small part of the population. A common problem is that research findings on public health-related topics such as physical activity promotion are oftentimes not translated into practice. The involvement of relevant stakeholders, such as change agents (role models, decision-makers, a...

Objective The purpose of this study was to evaluate the efficacy of need-supportive teaching in physical education on girls' daily moderate-to-vigorous physical activity using a mixed method evaluation. Methods 507 sixth-grade girls aged 9 to 14 years of 33 single-sex physical education classes participated in the cluster randomized control trial....

Regular physical activity (PA) and low levels of sedentary behavior (SB) have positive health effects on young people. Adolescent girls of low socioeconomic background represent a high-risk group with regard to physical inactivity and SB. In this study, accelerometer-measured levels of PA and SB of female sixth graders attending lower secondary sch...

Depending on the region and urbanization level, the rate of cycling to school in Germany varies largely. The influence of distance from home to school, educational level, the school's region, and parents' socio-demographic characteristics on cycling to secondary school in Germany is unclear. Therefore, this study analyzed students' and parents' soc...

Introduction and Objective: This systematic review aimed to analyse the international evolution of fitness with its distributional changes in the performance on tests of physical fitness among school-aged children and adolescents. Methods: In accordance with the Preferred Reporting Items for Systematic Reviewsand Meta-Analyses (PRISMA) guidelines,...

Background Individual health behavior is related to environmental and social structures. To promote physical activity (PA) effectively, it is necessary to consider structural influences. Previous research has shown the relevance of the built environment. However, sex/gender differences have yet not been considered. The aim of this systematic review...

Active commuting (AC) provides numerous health benefits and is one way to improve physical activity in children and adolescents. Boys are more likely to use active transport modes than girls. Girls and boys benefit differently from interventions that promote AC. The aim of this systematic review is to evaluate the effects of interventions on girls...

Background Promoting cycling to school may benefit establishing a lifelong physical activity routine. This systematic review aimed to summarize the evidence on strategies and effects of school-based interventions focusing on increasing active school transport by bicycle. Methods A literature search based on “PICo” was conducted in eight electronic...

Introduction Adolescents’ physical activity (PA) behavior can be driven by several psychosocial determinants at the same time. Most analyses use a variable-based approach that examines relations between PA-related determinants and PA behavior on the between-person level. Using this approach, possible coexistences of different psychosocial determina...

Purpose Besides the evident positive effect on body development, physical activity has proven to boost executive functions, especially if the exercises are enriched with cognitive stimuli. Previous studies have shown that introducing challenging exercises in the physical activity routine can also enhance motivation. Therefore, enriching a physical...

Background To evaluate the effects of interventions on children’s and adolescents’ overall physical activity (PA) for boys and girls separately and to appraise the extent to which the studies haven taken sex/gender into account. Methods Systematic review and semi-quantitative analysis. Eleven electronic databases were searched to identify all rele...

Teachers' autonomy support (AS) in physical education (PE) has positive effects on students' affective and behavioral outcomes in PE. Even though the existence of three different dimensions of AS, namely cognitive, organizational and procedural AS has been suggested in educational settings, there is a lack of multidimensional instruments for the as...

Das „Bewegungs-Zeugnis“ für Deutschland fasst das Ausmaß von körperlicher Aktivität und sitzendem Verhalten von Kindern und Jugendlichen zusammen. Auch die Bewegungsmöglichkeiten in Schulen und Kommunen sowie mit Familien und Freunden fanden Eingang in die Analyse. Schließlich wurde beleuchtet, inwieweit in Deutschland politische Maßnahmen für die...

Abstract This study aimed to analyse the cross-sectional and prospective relationship between moderate and vigorous physical activity (PA) and depression symptoms. This study analysed 32,392 European late middle-aged to older adults, from 14 European countries across a 4-year follow-up. Data was collected in the fourth (in 2011) and sixth (in 2015)...

Active commuting to school is highly recommended for several reasons, and in the decision-making process for doing so, a child interacts with parents and teachers. Until now, these three interactors' gender-specific perspectives on children and adolescents' need for cycling to school have been unavailable. Thus, our concept mapping study analyzed t...

Observational and experimental studies show that leisure time sporting activity (LTSA) is associated with higher well-being. However, scholars often seem to assume that 1) LTSA fosters "general" life satisfaction, thereby ignoring effects on domain satisfaction; 2) the effect of LTSA on well-being is linear and independent of a person's general act...

Introduction Assuming that motivation is the key to initiate and sustain beneficial health behaviors, the aim of this systematic review was to analyze the effects of school-based physical activity interventions on a variety of motivational outcomes towards PA in school-aged children and adolescents. Methods A comprehensive literature search was ca...

This systematic review aims to evaluate the extent of sex/gender consideration and effectiveness of interventions designed to reduce sedentary behaviour (SB). We searched for randomised or non-randomised controlled trials with the outcome SB and a sex/gender analysis in eleven electronic databases. Sixty-seven studies were included. Sex/gender cons...

Background To evaluate the effects of interventions on children’s and adolescents’ overall physical activity (PA) for boys and girls separately and to appraise the extent to which the studies haven taken sex/gender into account. Methods Systematic review and semi-quantitative analysis. Eleven electronic databases were searched to identify all relev...

Background To evaluate the effects of interventions on children’s and adolescents’ overall physical activity (PA) for boys and girls separately and to appraise the extent to which the studies haven taken sex/gender into account. Methods Systematic review and semi-quantitative analysis. Eleven electronic databases were searched to identify all relev...

Background To evaluate the effects of interventions on children’s and adolescents’ overall physical activity (PA) for boys and girls separately and to appraise the extent to which the studies haven taken sex/gender into account. Methods Systematic review and semi-quantitative analysis. Eleven electronic databases were searched to identify all relev...

Background: The majority of children and adolescents are insufficiently physically active. Self-efficacy is considered one of the most important determinants of physical activity (PA). The purpose of this study was to validate the German version of the physical activity self-efficacy scale by means of a multi-level approach. Factorial validity, in...

Introduction: Physical activity (PA) is a beneficial health behaviour, however most adolescents worldwide are physically inactive. Updated information on the prevalence and trends of PA is important to inform national and international authorities and support countries' public health policies and actions. This study aimed to present the worldwide,...

Purpose The effects of physical exercise on executive functions (EFs) are well-documented. EFs are involved in daily activities, and their development determines the quality of people’s future life, both in terms of mental health and quality of life. The purpose of the current paper is to evaluate the effects of a physical education program, elabor...