Parental Involvement Improves the Effect of Motivational Interviewing on Weight Loss in Obese Adolescents: A Randomized Controlled Trial Study

Study Overview
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Brief Summary
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Motivational interviewing (MI) has been shown to be an effective strategy in targeting obesity in adolescents and parental involvement has been associated with increased effectiveness. The aim of the study is to evaluate and compare the role of parental involvement in MI interventions for obese adolescents

Conditions
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Obesity, Adolescent

Intervention / Treatment
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* Behavioral: motivational interviewing
* Behavioral: motivational interviewing with parental involvement
* Behavioral: Control group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: BMI equal or higher than 95th percentile for age and gender 13-18 years old Exclusion Criteria: medication with weight gain as side effects diagnosed with having eating disorder pregnant clinical mental health conditions psychosis

Ages Eligible for Study
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Minimum Age: 13 Years
Maximum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: motivational intervieing group<br>The behavioral intervention targets were improved eating and physical activity behavior in order to reduce obesity levels. Each adolescent was encouraged to eat a variety of foods from each of the four major food groups and low-fat alternatives . Moreover, each adolescent was encouraged to achieve at least 60 minutes of moderate-to-vigorous intensity physical activity daily as recommended by the World Health Organization | Behavioral: motivational interviewing<br> <br> |
| Experimental: motivational interviewi group with parental involvement<br>an additional single session with parents or guardians over 60 minutes in the clinic | Behavioral: motivational interviewing with parental involvement<br> <br> |
| Active Comparator: Control<br>The patients received routine care | Behavioral: Control group<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| changes in BMI | Body Mass Index | changes from baseline and 12 months follow-up | 
| Child Dietary Self-Efficacy | Child Dietary Self-Efficacy Scale (CDSS) | changes from baseline and 12 months follow-up | 
| Weight Efficacy Lifestyle | Weight Efficacy Lifestyle questionnaire (WEL) | changes from baseline and 12 months follow-up | 
| Physical Exercise Self-efficacy | Physical Exercise Self-efficacy Scale (PES) | changes from baseline and 12 months follow-up | 
| changes in physical activity |  | changes from baseline and 12 months follow-up | 
| changes in dietary pattern |  | changes from baseline and 12 months follow-up | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Changes in blood cholesterol level |  | changes from baseline and 12 months follow-up | 
| changes in blood triglyceride level |  | changes from baseline and 12 months follow-up | 
| Changes in body fat percentage |  | changes from baseline and 12 months follow-up | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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obese adolescents, BMI ≥ 95th percentile for age and gender