Associations between Screen-Based Activities, Physical Activity, and Dietary Habits in Mexican Schoolchildren

Psychometric Properties of the Video Game Experiences Questionnaire (CERV), Problematic Use of Video Games and the Link with the Use of Mobile Devices in Mexican Children

When the use of video games is inappropriate in terms of time and content, it becomes a health risk. The objective of the present study was to analyze the psychometric properties of the Video-Game-Related Experience Questionnaire (CERV), determine its problematic use and know the link between the use of mobile devices (MD) and Mexican children.

METHODS

The study followed an instrumental and comparative design, with n = 519 children. Of these, 61.5% were from Jalisco, and 38.5% were from Nuevo Leon. The sample consisted of 50.1% girls, with 39.7% and 33.7 were in sixth and fifth grade of primary school, respectively. The mean age of participants was 10.50 ± 0.94 years, with ages ranging from 9 to 13 years. In addition, 86.7% of children had access to a DM, 45.3% of children who had a DM used it to play, and 59.0% exceeded the recommended usage time of more than two hours. The Video-Game-Related Experience Questionnaire was used. For the factorial structure, a confirmatory factor analysis was conducted using the Diagonal Weighted Least Squares (DWLS) estimation method. The goodness-of-fit indices were as follows: chi-square value over degrees of freedom (X2/gl), CFI, NNFI, and RMSEA.

RESULTS

The goodness-of-fit indices were shown as follows: X2/gl = 1.16; RMSEA = 0.018; SRMR = 0.048; CFI = 0.99; TLI = 0.99; NNFI = 0.99. Acceptable reliability was found with both Cronbach's alpha and McDonald's omega greater than 0.80. Furthermore, 41.6% of participants had potential or severe problems with video game use, and the use of mobile devices (DMs) was significantly associated (p < 0.001) with potential or severe problems.

CONCLUSION

It is suggested that educational programs be implemented regarding the consequences of excessive video game use, the usage of DMs, and the importance of restrictive use per se for parents.

From activity to obesity: understanding gender and type of school divide among Saudi adolescents

Background

Obesity has emerged as a significant predictor of the nationwide burden of non-communicable diseases in Saudi Arabia.

Objectives

This study explores patterns in body mass index (BMI), physical activity (PA), and sedentary behavior (SB) among Saudi adolescents, focusing on variations by gender and school type (public vs. private). It identifies key factors affecting BMI.

Methods

A total of 2,815 students (53.64% male, aged 15.21 ± 1.55 years) participated. Body weight and composition were determined by bioelectrical impedance, while PA levels and SB scores were assessed through validated questionnaires. Two models were created, one with overall SB and the other with specific SBs.

Results

Among participants, 28.4% were overweight/obese, with 17.2% classified as obese. Obesity prevalence was higher in boys (26.9%) compared to girls (6.0%). Overweight prevalence was slightly lower in private schools (9.9%) than in public schools (11.8%), while obesity rates were similar (17.3% vs. 17.2%). A significant association between BMI and school type was identified solely in girls (Model 1: p = 0.004, ES = 0.109; Model 2: p = 0.012, ES = 0.096). Age was positively associated with BMI (Model 1: p < 0.004, ES = 0.025; Model 2: p < 0.001, ES = 0.019), as were SB scores (p < 0.001, ES = 0.17). Conversely, PA levels exhibited a negative correlation with BMI (Model 1: p < 0.001, effect size = -0.104; Model 2: p < 0.001, effect size = -0.106). Polynomial analysis revealed a cubic relationship between BMI and PA across all groups, though with low effect sizes.

Conclusion

Gender, age, PA, and SB explained a small portion of BMI variance. Future research should investigate mechanisms underlying these non-linear trends and explore additional confounding variables.

Unhealthy Food and Beverage Marketing to Children in the Digital Age: Global Research and Policy Challenges and Priorities

Food and nonalcoholic beverage marketing is implicated in poor diet and obesity in children. The rapid growth and proliferation of digital marketing has resulted in dramatic changes to advertising practices and children's exposure. The constantly evolving and data-driven nature of digital food marketing presents substantial challenges for researchers seeking to quantify the impact on children and for policymakers tasked with designing and implementing restrictive policies. We outline the latest evidence on children's experience of the contemporary digital food marketing ecosystem, conceptual frameworks guiding digital food marketing research, the impact of digital food marketing on dietary outcomes, and the methods used to determine impact, and we consider the key research and policy challenges and priorities for the field. Recent methodological and policy developments represent opportunities to apply novel and innovative solutions to address this complex issue, which could drive meaningful improvements in children's dietary health.

Determinants of obesity in Latin America

Obesity rates are increasing almost everywhere in the world, although the pace and timing for this increase differ when populations from developed and developing countries are compared. The sharp and more recent increase in obesity rates in many Latin American countries is an example of that and results from regional characteristics that emerge from interactions between multiple factors. Aware of the complexity of enumerating these factors, we highlight eight main determinants (the physical environment, food exposure, economic and political interest, social inequity, limited access to scientific knowledge, culture, contextual behaviour and genetics) and discuss how they impact obesity rates in Latin American countries. We propose that initiatives aimed at understanding obesity and hampering obesity growth in Latin America should involve multidisciplinary, global approaches that consider these determinants to build more effective public policy and strategies, accounting for regional differences and disease complexity at the individual and systemic levels.

Consumption of ultra-processed foods and low dietary diversity are associated with sedentary and unhealthy eating behaviors: A nationwide study with Brazilian Schoolchildren

BACKGROUND

Consumption of ultra-processed foods and low dietary diversity are risk factors for chronic diseases.

AIM

To evaluate the association between food consumption and sedentary and unhealthy eating behaviors of Brazilian schoolchildren between 6 and 11 years old.

METHODS

Cross-sectional study. A prevalence sample was calculated considering the number of children enrolled in elementary school. This sample was distributed proportionally to Brazil's macro-regions and the type of school (public or private). The questionnaire was developed in Google Forms and disseminated through the snowball technique. The questionnaire was filled in by the children's parents, with information about the child's identification and health. Afterward, the child completed a questionnaire by her/himself. We used the previously validated Illustrated Questionnaire on Food Consumption for Brazilian Schoolchildren and the Illustrated Questionnaire on Eating and Sedentary Behaviors. Food consumption was analyzed using the NOVA score and the dietary diversity score. Poisson's regression with robust variance was performed (p<0.05).

RESULTS

The study included 2,021 dyads. Of these, 27.6% of children reported eating five or more ultra-processed foods and 39.0% four or fewer natural or staple foods the previous day. Using screens, proxy of sedentary behavior (Prevalence Ratio-PR = 1.8, Confidence Interval-CI95%1.2-2.8) and eating at irregular hours (PR = 1.6, CI95%1.2-2.2) were risk factors for high consumption of ultra-processed foods and low dietary diversity in schoolchildren. In addition, eating the three main meals on the previous day (PR = 0.6, CI95%0.4-0.8) was identified as protective factors against the consumption of ultra-processed foods and in favor of dietary diversity among schoolchildren.

CONCLUSION

Sedentary and unhealthy eating behaviors were associated with the consumption of ultra-processed foods and low dietary diversity in Brazilian schoolchildren.

Longitudinal relationship between screen-based sedentary behavior and nutrient intake in Japanese children: an observational epidemiological cohort study

BACKGROUND

Concerns regarding the impact of screen-based sedentary behavior on health have been increasing. Therefore, the present study investigated the longitudinal relationship between multiple screen time and nutrient intake in children and adolescents.

METHODS

The present study was conducted utilizing 3 years longitudinal data. Study subjects were 740 Japanese children aged between 6 and 12 years at baseline and between 9 and 15 years in the follow-up. Screen-based sedentary behavior was assessed using screen time, including television (TV) viewing, personal computer (PC) use, and mobile phone (MP) use. The main outcomes were the intakes of nutrients. Mixed effect multivariate linear regression analyses were used to examine the longitudinal relationship between screen-based sedentary time and nutrient intake. Covariates included in the multivariable analysis consisted of sex, age, solitary eating, skipping breakfast, staying up late, and body weight status, as confounders, and physical inactivity, as mediator.

RESULTS

In boys, a longer total screen time longitudinally correlated with higher intake of energy and lower intakes of protein, dietary fiber, minerals, and vitamins. In girls, longer total screen time longitudinally associated with higher intake of sucrose and lower intakes of protein, minerals, and vitamins. In boys, a longer TV viewing time was associated with higher intake of sucrose and lower intakes of protein, minerals, and vitamins. In girls, a longer TV viewing time was associated with higher intake of carbohydrates and lower intakes of protein, fat, minerals, and vitamins. In boys, relationships were observed between a longer PC use time and higher intakes of energy as well as lower intakes of protein, minerals, and vitamins. Relationship was observed between longer PC use time and lower intakes of minerals in girls. An increased MP use time was associated with higher intakes of energy, and lower intakes of protein, sucrose, dietary fiber, minerals, and vitamins in boys. A longer MP use time was associated with higher intakes of fat, and salt as well as lower intakes of carbohydrates, protein, minerals, and vitamins in girls.

CONCLUSIONS

The present results revealed that longer screen-based sedentary behaviors were longitudinally associated with nutrient intake in children and adolescents. Future study is needed to elucidate these relationships.

Toward an Integrated Consideration of 24 h Movement Guidelines and Nutritional Recommendations

While physical activity, sleep and sedentary behaviors are almost always considered independently, they should be considered as integrated human behaviors. The 24 h Movement approach proposes a concomitant consideration of these behaviors to promote overall health. Not only do these behaviors impact energy expenditure, but they have also been shown to separately impact energy intake, which should be further explored when considering the entire integration of these movement behaviors under the 24 h movement approach. After an evaluation of the prevalence of meeting the 24 h Movement and dietary recommendations, this review summarizes the available evidence (using English publications indexed in PubMed/MEDLINE) regarding the association between the 24 h Movement Guidelines and eating habits. Altogether, the results clearly show the beneficial impact of promoting the 24 h guidelines simultaneously, highlighting that the higher the number of respected movement recommendations, the better eating behaviors in both children and adults. Importantly, our results point out the importance of emphasizing the need to reach sedentary guidelines for better eating habits. Movement and dietary behaviors appear closely related, and giving recommendations on one might impact the other. Combining the 24 h Movement with dietary Guidelines might be more efficient than promoting them separately in public health strategies.