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Strong Minds: A Digital Intervention Targeting Body Image and Psychological Well-being Among Adolescent Male Fitness Club Members (Strong Minds)

25. srpna 2026 aktualizováno: Christina Gjestvang, Norwegian School of Sport Sciences

Strong Minds: A Digital Intervention Targeting Body Image and Psychological Well-Being Among Adolescent Male Fitness Club Members

The purpose of this study is to evaluate whether a digital intervention can improve body image and psychological well-being among adolescent boys who attend fitness clubs. Fitness club environments and social media often promote appearance ideals related to muscularity and leanness, which may contribute to body appearance pressure, body dissatisfaction, and psychological distress among boys.

In this cluster-randomized controlled trial, approximately 260 boys aged 15 to 18 years will be recruited from fitness clubs in Oslo, Norway. Participants from fitness clubs assigned to the intervention group will receive access to a 12-week website-based program consisting of four interactive modules focusing on body image, psychological well-being, critical social media literacy, and attitudes toward food and sports supplements. Participants in the control group will continue their usual activities.

The study will examine whether the intervention reduces internalization of appearance ideals and body appearance pressure and improves body appreciation, health-related quality of life, psychological well-being, social media-related behaviors, and attitudes toward food and sports supplements. Outcomes will be assessed at baseline, immediately after the intervention, and at a 6-month follow-up.

Přehled studie

Detailní popis

The prevalence of body image concerns among adolescent boys has increased in recent years, accompanied by growing internalization of appearance ideals emphasizing muscularity, leanness, and physical performance. Fitness clubs represent an important social and exercise arena for adolescent boys and may contribute both positively and negatively to psychological well-being. While regular physical activity is associated with health benefits, fitness club environments often expose young males to appearance-focused norms, body comparisons, and social influences reinforced through social media and commercial fitness culture. These factors may increase body appearance pressure, body dissatisfaction, unhealthy attitudes toward food and supplements, and vulnerability to psychological distress. Despite the increasing participation of adolescent boys in fitness clubs, few evidence-based interventions have been developed for this population.

The Strong Minds study aims to evaluate the effectiveness of a digital intervention designed to promote positive body image and psychological well-being among adolescent male fitness club members. The intervention targets body image-related constructs, social media literacy, psychological well-being, and attitudes related to food and sports supplements. The study further seeks to examine mechanisms through which the intervention may influence outcomes, including body appreciation and social media-related processes.

The study will be conducted as a cluster-randomized controlled trial involving fitness clubs in Oslo, Norway. Fitness clubs will serve as the unit of randomization and will be allocated to either an intervention condition or a usual-routine control condition. Approximately 260 participants will be recruited. Data collection will occur at baseline, immediately following the intervention period, and six months after completion of the intervention.

Participants assigned to the intervention group will receive access to a website-based program delivered over 12 weeks. The intervention consists of four modules released at three-week intervals. To maximize engagement and feasibility, the intervention has been designed as a brief and interactive digital experience requiring approximately 75 minutes of total participation. Participants in the control group will continue their usual activities and will receive access to the intervention after study completion.

The intervention content has been developed using evidence-based approaches from body image prevention research, social media literacy interventions, positive psychology, embodiment theory, and sociocultural models of body image development. The website uses an interactive narrative format centered on realistic situations encountered by adolescent boys in fitness club settings. Through short episodes, quizzes, reflection exercises, and individualized feedback, participants are encouraged to critically evaluate appearance ideals, social media messages, body-related pressures, and health information encountered in everyday life. The intervention addresses four core themes: body image, psychological well-being, critical social media literacy, and attitudes toward food and sports supplements.

To enhance relevance, usability, and participant engagement, the intervention will be co-created with a Collaborative Competence Group consisting of young males with lived experience of body image concerns and/or disordered eating related to gym participation. User involvement will contribute to the development of content, design, language, functionality, and overall user experience.

Data will be collected through online questionnaires assessing body image-related constructs, body appreciation, health-related quality of life, psychological distress, social media use and appearance comparison, food-related attitudes, attitudes toward sports supplements, exercise habits, and demographic characteristics. Intervention adherence will be monitored through website analytics, including module completion and login frequency.

The study is funded by the Dam Foundation through ROS (Counselling and Support for Eating Disorders). Ethical approval procedures have been completed in accordance with Norwegian regulations, and all participants will provide informed consent before participation. The findings from the Strong Minds study will contribute to knowledge regarding scalable and accessible strategies for promoting positive body image and psychological well-being among adolescent boys in fitness club environments.

Typ studie

Intervenční

Zápis (Odhadovaný)

260

Fáze

  • Nelze použít

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dítě
  • Dospělý

Přijímá zdravé dobrovolníky

Ano

Popis

Inclusion Criteria:

  • Cisgender boy
  • Aged 15 to 18 years
  • Current member of a fitness club
  • Attends the fitness club at least once per week
  • Able to read and understand Norwegian
  • Provides informed consent (parental/guardian consent required for participants younger than 16 years)

Exclusion Criteria:

  • Does not meet one or more of the inclusion criteria
  • Not able to provide informed consent
  • Previously enrolled in the study

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Prevence
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Digital intervention
Participants assigned to the intervention arm will receive access to a website, a 12-week digital intervention designed to promote positive body image and psychological well-being among adolescent male fitness club members. The intervention consists of four interactive modules released every three weeks and addresses body image, psychological well-being, critical social media literacy, and attitudes toward food and sports supplements. Modules include brief narrative-based content, quizzes, personalized feedback, and reflection exercises. Total engagement time is approximately 75 minutes across the 12-week intervention period.
Participants assigned to the intervention arm will receive access to the Strong Minds website, a 12-week digital intervention designed to promote positive body image and psychological well-being among adolescent male fitness club members. The intervention consists of four interactive modules released every three weeks and addresses body image, psychological well-being, critical social media literacy, and attitudes toward food and sports supplements. Modules include brief narrative-based content, quizzes, personalized feedback, and reflection exercises. Total engagement time is approximately 75 minutes across the 12-week intervention period.
Žádný zásah: Control group
Participants assigned to the control condition will continue their regular exercise and daily activities without receiving the Strong Minds intervention during the 12-week trial period. Outcome assessments will be conducted at the same time points as in the intervention group (baseline, post-intervention, and 6-month follow-up). Access to the digital intervention will be provided after completion of the randomized controlled trial.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Internalization
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Internalization of appearance ideals (Sociocultural Attitudes Towards Appearance Questionnaire-4 [SATAQ-4]). This outcome assesses the extent to which participants adopt societal appearance ideals related to muscularity, leanness, and low body fat as personal standards for evaluating their own appearance. Internalization is measured using the relevant SATAQ-4 subscales. Items are rated on a 5-point Likert scale ranging from 1 (definitely disagree) to 5 (definitely agree), with higher scores indicating greater internalization of societal appearance ideals. The outcome will be assessed at baseline, post-intervention (12 weeks), and 6-month follow-up.
Baseline, post-intervention (12 weeks), and 6-month follow-up.
Body appearance pressure
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Body appearance pressure measured using the Sociocultural Attitudes Towards Appearance Questionnaire-4 Revised (SATAQ-4R). Scores range from 1 to 5, with higher scores indicating greater perceived appearance-related pressure from media and sociocultural influences.
Baseline, post-intervention (12 weeks), and 6-month follow-up.

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Body appreciation
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
The extent to which participants respect, accept, and value their bodies and maintain a positive body image despite societal appearance pressures.
Baseline, post-intervention (12 weeks), and 6-month follow-up.
Social Media use
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Self-reported social media use, including platform(s) used, frequency of use per day, time spent on social media (hours/day), exposure to appearance-related content, appearance comparison, selfie posting, and motivations for use.
Baseline, post-intervention (12 weeks), and 6-month follow-up.
General health-related quality of life.
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Self-reported health-related quality of life measured using the KIDSCREEN-10 questionnaire. Higher scores indicate better quality of life and well-being.
Baseline, post-intervention (12 weeks), and 6-month follow-up.
Psychological distress
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Psychological distress assessed using the Hopkins Symptom Checklist-10 (HSCL-10). The HSCL-10 is a self-report measure of symptoms of anxiety and depression. The total score is calculated as the mean of the 10 items, with response options ranging from 1 (not at all) to 4 (extremely). Scores range from 1 to 4, with higher scores indicating greater psychological distress and a worse outcome.
Baseline, post-intervention (12 weeks), and 6-month follow-up.
Food-related attitudes.
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Food-related attitudes and behaviors assessed using the Eating Attitudes Test-26 (EAT-26). The EAT-26 is a self-report measure of attitudes, beliefs, and behaviors associated with eating-related concerns and disordered eating. The total score ranges from 0 to 78, with higher scores indicating more problematic eating attitudes and behaviors and a worse outcome. Assessments will be conducted at baseline, post-intervention (12 weeks), and 6-month follow-up.
Baseline, post-intervention (12 weeks), and 6-month follow-up.
Attitudes towards sports supplements
Časové okno: Baseline, post-intervention (12 weeks), and 6-month follow-up.
Questions regarding anabolic steroids, testosterone preparations, growth hormone, ephedrine, and Selective Androgen Receptor Modulators (SARMS)) [GU33.1]based on Ungdata, an annual Norwegian data collection scheme.
Baseline, post-intervention (12 weeks), and 6-month follow-up.

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. ledna 2028

Primární dokončení (Odhadovaný)

1. září 2028

Dokončení studie (Odhadovaný)

1. září 2028

Termíny zápisu do studia

První předloženo

18. srpna 2026

První předloženo, které splnilo kritéria kontroly kvality

25. srpna 2026

První zveřejněno (Aktuální)

27. srpna 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

27. srpna 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

25. srpna 2026

Naposledy ověřeno

1. srpna 2026

Více informací

Termíny související s touto studií

Další relevantní podmínky MeSH

Další identifikační čísla studie

  • Strong Minds
  • #SDAM_FOR999270 (Jiné číslo grantu/financování: The Dam Foundation)

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

ANO

Popis plánu IPD

Individual participant data that have been de-identified, including demographic characteristics, outcome measures, and questionnaire data underlying the published results, will be made available to qualified researchers upon reasonable request following publication of the main study findings. Data sharing will be conducted in accordance with applicable ethical approvals, data protection regulations, and FAIR data principles.

Časový rámec sdílení IPD

Beginning 6 months after publication of the primary study results with no predefined end date.

Kritéria přístupu pro sdílení IPD

Access to de-identified individual participant data will be provided to qualified researchers upon reasonable request. Researchers must submit a methodologically sound research proposal and may be required to sign a data access agreement. Requests will be reviewed by the study investigators to ensure compliance with ethical approvals, applicable data protection regulations, and institutional policies. Data will be shared only for research purposes consistent with the objectives of the original study.

Typ podpůrných informací pro sdílení IPD

  • PROTOKOL STUDY
  • MÍZA

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

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