Skip to content

Development, Implementation, and Evaluation of the HADAS Program for the Prevention of Eating Disorders in Adolescent Female Athletes, Coaches, and Families.

A Program for the Prevention of ED in Adolescent Female Athletes, the HADAS: Protocol for a Randomized Controlled Trial Study

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07750301
Acronym
The HADAS
Enrollment
236
Registered
2026-08-06
Start date
2026-10-01
Completion date
2029-05-01
Last updated
2026-08-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Body Image Dissatisfaction, Eating Disorders

Keywords

Eating Disorders, Primary Prevention, Adolescent Health, Aesthetic Sports, Sports Psychology, Family Relations, Health Education

Brief summary

Adolescent female athletes in aesthetic sports disciplines (such as rhythmic gymnastics, artistic gymnastics, synchronized swimming, and figure skating) face a complex interaction between general sociocultural beauty pressures and sport-specific aesthetic demands (e.g., the 'slim to win' culture and weight-focused performance expectations). These combined pressures significantly increase their risk of developing body dissatisfaction and eating disorders (EDs). To address these systemic vulnerabilities, the HADAS Program (Habits, Eating, Sports, Adolescents, and Health) was developed as a multi-level, synchronized psychoeducational intervention designed to target the complete "sports triangle": adolescent female athletes, their technical coaches, and their immediate family members. The primary objective of this cluster randomized controlled trial (cluster RCT) is to evaluate the efficacy of the HADAS Program in reducing eating disorder risk (EAT-26) and body image dissatisfaction (BSQ-34) among competitive adolescent female athletes aged 12 to 16 years. Sports clubs are randomly assigned to either the Experimental Group (receiving the HADAS intervention) or a Waitlist Control Group (maintaining standard training). The program includes 5 interactive group sessions for athletes, 4 reflective workshops for coaches, and 2 structured sessions for family members, all supported by cohort-specific workbooks. Outcomes are evaluated across four longitudinal time points: Baseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).

Interventions

BEHAVIORALThe HADAS Program

A synchronized, multi-level psychoeducational prevention program designed to target eating disorder risk and body image dissatisfaction across the sports triangle (athletes, coaches, and families). Content focuses on media literacy, healthy life habits, emotional management, deconstructing body-weight myths in aesthetic sports, and promoting autonomy-supportive coaching and family environments

Sponsors

Universidad Miguel Hernandez de Elche
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

Allocation sequence generation, baseline data management, outcome assessment, and statistical data processing are strictly conducted by independent researchers who are blinded to experimental assignments.

Intervention model description

Cluster randomized controlled trial with longitudinal tracking across four time points (T0, T1, T2, T3). Randomization is executed at the sports club level (cluster RCT) to avoid contamination among athletes within the same training environment.

Eligibility

Sex/Gender
FEMALE
Age
12 Years to 16 Years
Healthy volunteers
Yes

Inclusion criteria

* Athletes: Female gender; aged between 12 and 16 years old; actively possessing a formal federation license in an aesthetic sport discipline (e.g., rhythmic gymnastics, artistic gymnastics, synchronized swimming, figure skating) within Spain; providing signed informed assent concurrently with written informed consent from parents/legal representatives; and presenting no active, formal clinical diagnosis of an eating disorder (ED). * Coaches: Serving as a primary trainer or technical staff member within the participating sports club; and providing written informed consent. * Family Members: Operating as the primary parent, guardian, or legal representative of an included athlete; and providing written informed consent.

Exclusion criteria

* Athletes: Presenting a current, formal clinical diagnosis of an eating disorder (e.g., Anorexia Nervosa, Bulimia Nervosa, Binge Eating Disorder, or ARFID) at baseline (T0); or refusal to provide informed assent or parental consent. * Non-compliance or failure to provide signed informed consent from coaches or primary legal guardians.

Design outcomes

Primary

MeasureTime frameDescription
Eating Disorder Risk and SymptomatologyBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Eating Attitudes Test (EAT-26; Garner et al., 1982; Spanish validation by Rivas et al., 2010). It assesses eating disorder risk behaviors and attitudes across 26 items. Total scores range from 0 to 78, where higher scores indicate greater eating disorder risk and symptomatology (a worse outcome) . Scores of 20 or higher indicate the presence of significant risk attitudes toward eating.
Body Image DissatisfactionBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Body Shape Questionnaire (BSQ-34; Cooper et al., 1987; Spanish validation by Raich et al., 1996). It assesses body dissatisfaction and concern with weight and shape across 34 items. Total scores range from 34 to 204, where higher scores indicate greater body dissatisfaction and psychological distress regarding body image (a worse outcome). Scores are categorized into no dissatisfaction (\<80), mild (80-110), moderate (111-140), and severe (\>140), with moderate and severe categories indicating significant body image vulnerability.

Secondary

MeasureTime frameDescription
Psychological Well-BeingBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Psychological Well-Being Scale for Youth (PWB-SF-Y; Ryff, 1989; Spanish adaptation by Stavraki et al., 2022). It assesses well-being across 6 core dimensions using a single item per dimension. Items are rated on a 6-point Likert scale ranging from 1 ("strongly disagree") to 6 ("strongly agree"). Total scores range from 6 to 36, where higher scores indicate greater psychological well-being and optimal psychological functioning (a better outcome)..
Life SatisfactionBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Satisfaction With Life Scale (SWLS; Diener et al., 1985; Spanish validation in adolescents by Atienza et al., 2003). It assesses global cognitive judgments of one's life satisfaction across 5 items rated on a 5-point Likert scale ranging from 1 ("strongly disagree") to 5 ("strongly agree"). Total scores range from 5 to 25, where higher scores indicate greater life satisfaction and positive cognitive evaluation of life (a better outcome).
Competitive AnxietyBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Revised Competitive State Anxiety Inventory-2 (CSAI-2R; Martens et al., 1990; Spanish validation by Andrade et al., 2007). It assesses pre-competitive state anxiety across 16 items rated on a 4-point Likert scale ranging from 1 ("not at all") to 4 ("very much"). The inventory measures three subscales: Cognitive Anxiety (5 items; scores range from 5 to 20, where higher scores indicate higher cognitive anxiety / a worse outcome), Somatic Anxiety (6 items; scores range from 6 to 24, where higher scores indicate higher somatic anxiety / a worse outcome), and Self-Confidence (5 items; scores range from 5 to 20, where higher scores indicate greater self-confidence / a better outcome).
Perfectionism in sportsBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Multidimensional Inventory of Perfectionism in Sport (MIPS; Stoeber et al., 2006; Spanish validation by Ramírez-Muñoz et al., 2023). It assesses sport-specific perfectionism across 10 items rated on a 6-point Likert scale ranging from 1 ("never") to 6 ("always"). The inventory yields two distinct subscales (5 items each, with total scores ranging from 5 to 30 for each subscale): Striving for Perfection (evaluates personal standards of excellence) and Negative Reactions to Imperfection (evaluates negative reactions to mistakes and sensitivity to external pressure), where higher scores reflect greater maladaptive perfectionism and a worse outcome).
Appearance awareness on social networksBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Appearance-Related Social Media Consciousness Scale (ASMC; Choukas-Bradley et al., 2020; Spanish validation by Rojo et al., 2023). It measures the ongoing awareness and body monitoring of one's physical appearance in social media contexts across 13 items rated on a 7-point Likert scale ranging from 1 ("never") to 7 ("always"). Total scores range from 13 to 91, where higher scores indicate greater appearance-related social media consciousness and body surveillance (a worse outcome).
Critical Thinking about MediaBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Critical Thinking About Media Messages Scale (CTMM; Scull et al., 2010; Spanish validation by Rojo et al., 2023). It assesses the degree to which individuals critically analyze and evaluate aesthetic and appearance-focused media messages across 6 items rated on a 6-point Likert scale ranging from 1 ("never") to 6 ("always"). Total scores range from 6 to 36, where higher scores indicate greater critical thinking toward media and social media messages (a better outcome).
General knowledge about nutrition in adolescentsBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Questionnaire on Nutrition Knowledge for Adolescents (C.A.P.A.; Ladrón-Arana et al., 2021). It assesses nutritional literacy and general healthy eating knowledge in adolescents across 26 multiple-choice items (with 4 response options per item). Each correct response is awarded 1 point, yielding total scores ranging from 0 to 26, where higher scores indicate greater general nutritional knowledge and dietary literacy (a better outcome).
Coach controlling behaviorsBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Controlling Coach Behaviors Scale (CCBS; Bartholomew et al., 2010; Spanish validation by Castillo et al., 2014). It measures athletes' perceptions of their coach's controlling interpersonal style across 15 items rated on a 7-point Likert scale ranging from 1 ("strongly disagree") to 7 ("strongly agree"). The scale assesses four subscales: Controlling Use of Rewards (4 items), Negative Conditional Regard (4 items), Intimidation (4 items), and Excessive Personal Control (3 items). Total scores range from 15 to 105, where higher scores reflect higher perceived controlling behaviors from the coach (a worse outcome).
Leadership style in sportBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the Leadership Scale for Sports (LSS; Chelladurai \& Saleh, 1980; Spanish validation by Crespo et al., 1994). It assesses perceived coaching leadership behaviors across 31 items rated on a 5-point Likert scale ranging from 1 ("never") to 5 ("always"). The Spanish adaptation measures 4 dimensions: Relationship-Oriented Behavior (13 items), Task-Oriented Behavior (10 items), Democratic Behavior (4 items), and Autocratic Behavior (4 items). Dimension mean scores range from 1 to 5, where higher scores in Relationship-Oriented, Task-Oriented, and Democratic behaviors reflect more supportive and adaptive leadership styles (a better outcome).
Coach Eating Disorder Literacy and Warning Signs KnowledgeBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the ad hoc Coach Eating Disorder Knowledge Questionnaire, created specifically for the HADAS Program by its research group to evaluate program-specific learning objectives. The instrument was developed and validated via a four-stage process (item generation, expert panel review, scoring design, and pilot testing). It assesses sports-specific eating disorder (ED) literacy across 25 items structured in 5 core dimensions: (1) General multi-causal etiology (items 1-6); (2) Identification of behavioral/emotional warning signs in sports contexts (items 7-11); (3) Risk and protective factors in competitive environments (items 12-16); (4) Consequences on physical health and performance (items 17-20); and (5) Early detection and intervention protocols (items 21-25). Items use a True/False/I Don't Know (1 point for correct responses; 0 points for others). Total scores range from 0 to 25, where higher scores indicate higher sports-specific ED literacy and detection competence
Parental Eating Disorder Literacy and Warning Signs KnowledgeBaseline (T0), Immediate Post-intervention (T1), 6-month Follow-up (T2), and 12-month Follow-up (T3).Evaluated using the ad hoc Family Eating Disorder Knowledge Questionnaire, created specifically for the HADAS Program by its research group to align directly with the family intervention curriculum. The instrument was developed and validated via a four-stage process (item generation, expert panel review, scoring design, and pilot testing). It assesses family eating disorder literacy and management across 25 items structured in 5 core dimensions: (1) General ED knowledge (items 1-6); (2) Symptom identification in adolescent athletes (items 7-11); (3) Interpretation and behavioral action plans (items 12-15); (4) Risk and protective factors (items 16-19); and (5) Language, media literacy, and family role (items 20-25). Items use a True/False/I Don't Know format (1 point for correct responses; 0 points for incorrect or 'I Don't Know' answers). Total scores range from 0 to 25, where higher scores indicate greater parental eating disorder literacy and proactive family management skills.

Countries

Spain

Contacts

CONTACTEva María León Zarceño
eleon@umh.es+34 606501888
CONTACTJosué López Pozo
josue.lopezp@umh.es+34 616510686
PRINCIPAL_INVESTIGATOREva María León Zarceño

Universidad Miguel Hernández de Elche

PRINCIPAL_INVESTIGATORJosué López Pozo

Universidad Miguel Hernández de Elche

PRINCIPAL_INVESTIGATORYolanda Quiles Marcos

Universidad Miguel Hernández de Elche

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 7, 2026