Exercise, eating disordered behaviors and psychological well-being: a study with Portuguese adolescents

An update on the underlying risk factors of eating disorders onset during adolescence: a systematic review

Introduction

Eating disorders (EDs) are serious psychological problems that affect not only the individual, but also their entire environment. The prevalence rates of EDs are higher among the adolescent population. A better understanding of ED risk factors is essential to design effective prevention and intervention programs that focus beyond the areas of weight and appearance.

Methods

The main objective of this systematic review was to identify the risk factors of EDs and provide a comprehensive approach, analyzing the interplay between individuals, their inner circle, and the society characteristics. The Web of Science, Scopus, CENTRAL and PsycInfo databases were searched.

Results

The initial search produced 8,178 references. After removing duplicates and performing the selection process by three independent reviewers, 42 articles were included in the systematic review according to the pre-specified inclusion criteria. The results suggest the relevance of society and the inner circle on the development of EDs.

Discussion

The internalization of the thin ideal, promoted by the current society, and living in an unsupportive, unaffectionate, non-cohesive environment were associated with the onset of EDs symptomatology. Other associated variables with this ED indicator were poor-quality relationships and feeling judged about appearance. These aspects seem to be essential for the development of individual characteristics like self-esteem or adaptative coping during adolescence. This systematic review has shown the complex etiology of EDs and the relevance of the interplay between the different areas involved. Furthermore, this information could be relevant to improve the design of innovative and more effective prevention and intervention programs.

Systematic review registration

PROSPERO, identifier CRD42022320881.

A systematic review of measures for psychological well-being in physical activity studies and identification of critical issues

BACKGROUND

The health benefits of physical activity (PA) have been well documented in the literature. The relationship between PA and psychological well-being (PWB) has received increasing attention.

AIM

This study aimed to systematically review the measurement of PWB in PA studies and examine the major findings of these studies.

METHODS

We conducted a systematic search in PubMed/Medline, Web of Science, PsycINFO, and SportDiscus for articles published from their inception to October 2018 to identify empirical studies that investigated the relationship between PA and PWB. For each study meeting the inclusion criteria, we identified its measure for PWB and reviewed its main findings.

RESULTS

The literature search identified 53 studies examining the relationship between PA and PWB and 48 measurement scales for assessing various domains of PWB. The measurement scales were further classified as measures of hedonic well-being (n = 11), eudaimonic well-being (n = 10), mental ill-being (n = 18), or multifaceted well-being (n = 9). Twenty-seven out of 29 observational studies and nineteen out of 24 intervention studies found favorable associations between PA and at least one domain of PWB.

CONCLUSIONS

Although the findings in the empirical studies generally support a positive relationship between PA and PWB, the specific psychological domains measured in these studies vary considerably. In addition, the definition of PWB in these studies is incomplete and unclear. Future studies are suggested to choose measurement scales based on a clear and theoretically based definition of PWB and focus more on hedonic well-being and eudaimonic well-being.

Associations between symptoms of eating disturbance and frequency of physical activity in a non-clinical, population-based sample of adolescents

BACKGROUND

Physical activity is an important factor related to eating disorders, but the relationship between symptoms of eating disorders and physical activity is multifaceted. The aims of this study were to investigate how symptoms of eating disturbance (ED) were associated with physical activity, and to explore potential sex differences and the potential moderating effects from body mass index (BMI) scores.

METHODS

Data stem from a large population-based survey of 10,172 Norwegian adolescents aged 16 to 19 years, the youth@hordaland-survey. The main dependent variable was self-reported number of days with physical activity per week, while the main independent variable was self-reported symptoms of ED using the five-item Eating Disturbance Screening (EDS-5) questionnaire. Control variables included sex, age, socioeconomic status, and BMI.

RESULTS

Girls reported substantially more symptoms of ED compared with boys (M = 3.02 versus 1.32, d = 0.80, p < 0.001), as well as fewer days with physical activity per week (M = 2.88 versus 3.46, d = - 0.28, p < 0.001). For both sexes, symptoms of ED were negatively associated with physical activity (adjusted mean differences (adj. mean diff) ranging from - 0.03 to - 0.08, all p < 0.05). Interaction analyses showed, however, that associations between symptoms of ED and physical activity were significantly moderated by BMI scores for both girls (p < 0.01) and boys (p < 0.05). Specifically, ED symptoms were associated with lower physical activity levels among adolescents with higher BMI scores.

CONCLUSIONS

The present study indicates that symptoms of ED were overall negatively associated with physical activity for both sexes during adolescence. However, associations between ED symptoms and physical activity levels differed considerably across the weight spectrum.

Eating-Disordered Behaviour in Adolescents with Type 1 Diabetes

OBJECTIVES

To evaluate dysfunctional eating behaviour, self-esteem, social physique anxiety and quality of life in adolescents with type 1 diabetes who have differing desired weights and to evaluate the predictors of dysfunctional eating behaviour in these adolescents, with a focus on personal and psychological variables.

METHODS

We evaluated 79 adolescents with type 1 diabetes (mean age of 15.71 years) of both sexes (58.2% females) using the Eating Disorders Examination Questionnaire (EDE-Q), the Rosenberg Self-Esteem Scale (RSES), the Social Physique Anxiety Scale (SPAS-R) and the Diabetes Quality of Life (DQoL) measure.

RESULTS

Of the adolescents, 44 with type 1 diabetes reported the desire to maintain or increase their current weight, and 35 reported the desire to reduce their current weight. The participants with the desire to weigh less were mainly females who exercised regularly and demonstrated more frequent binge eating and purging. Additionally, this group exhibited an increased frequency of eating disturbances, such as restraint and eating, weight and shape concerns. Moreover, this group demonstrated increased social physique anxiety and decreased diabetes quality of life in relation to the impact of diabetes, worries about diabetes and satisfaction with life. Finally, predictors of eating disturbances included the desire for lower weight, higher social physique anxiety and lower diabetes-related quality of life.

CONCLUSIONS

The desire for a lower weight in adolescents with type 1 diabetes may increase problems related to eating behaviour and general quality of life.