- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00454610
Family Lifestyle Overweight Prevention Program (FLOW)
Family Lifestyle Overweight Prevention Program: Evaluation of a Weight Management Program for Mexican American Youth
The purpose of the study was to design a weight management program for Mexican American youth and to determine the effectiveness of the program for weight management compared to a self help program.
- At the end of 6 months, individuals randomly assigned to Intensive Intervention (II) (instructor/trainer led intervention) will lose more weight than individuals assigned to Self Help (SH) only.
- At the end of 1 year, individuals randomly assigned to II will maintain their weight losses better than individuals assigned to SH.
Secondary hypotheses will include examination of main effects and interactions at the end of 6 months with the following secondary dependent measures: treatment adherence (e.g., attendance, food diaries, exercise diaries), blood levels, changes in percent body fat, overall psychological functioning (PEDS-QL 4.0), and eating behaviors as assessed by food frequency checklists.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The overall objective of this study is to compare the effectiveness of a behavioral, family-based weight management program and a self-help only group for the prevention of obesity in adolescents. The treatments are; Self Help(SH) Instructions to follow a 12-week self help manual for healthy eating and increased physical activity; Intensive Intervention (II) 12 Weeks of daily and 7 Monthly sessions consisting of nutrition instruction, physical activity training, and behavior modification instruction. One hundred (BMI-for-age = 85th - 97.5th % or parent BMI > 25) adolescent males and females will be recruited into the study and randomly assigned to SH) Instructions to follow the self help manual for healthy eating and increased physical activity; II) 12 Weeks daily and 7 Monthly sessions consisting of nutrition instruction, physical activity training, and behavior modification instruction for one year. Participants will receive final measurements at the end of year 1 and intermediate evaluations at month 6. Given that the interventions decline in intensity and frequency after 3 months, the 1 year assessments will help evaluate which treatment was most effective in maintaining weight losses with minimal contact.
SH will consist of participants being instructed to follow a 12-week parent/child based self help book for weight loss, but they will not receive any active intervention. The manual (TRIM Kids, Sothern, von Almen, & Schumacher, 2001) that the families will follow is a treatment program which uses a family-based, behavioral intervention that focuses on diet and exercise with instructions and guidelines designed to assist the family in maintaining weight losses. II will consist of 12 Weeks of daily and 7 Monthly sessions consisting of nutrition instruction, physical activity training, and behavior modification instruction over the 1-year period. Body mass index (BMI), blood analyses (i.e. cholesterol, triglycerides, insulin, glucose, C-reactive protein, mono-unsaturated fatty acids, and inflammatory cytokines), analysis of eating and exercise behavior, and eating and exercise self-efficacy measures will be taken throughout the study. The focus of this study is to evaluate the effectiveness of an active, behaviorally designed intervention for the prevention of adult obesity.
Study Type
Enrollment
Phase
- Phase 3
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Enrolled in the 6th or 7th grade at the target school.
- Parent consent and child assent to participate.
Exclusion Criteria:
- Taking medications for weight control.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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standardized body mass index (zbmi)
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Secondary Outcome Measures
Outcome Measure |
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blood levels,
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changes in percent body fat,
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overall psychological functioning
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eating behaviors
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: John P Foreyt, Ph.D., Baylor College of Medicine
Publications and helpful links
General Publications
- Tyler C, Johnston CA, Fullerton G, Foreyt JP. Reduced quality of life in very overweight Mexican American adolescents. J Adolesc Health. 2007 Apr;40(4):366-8. doi: 10.1016/j.jadohealth.2006.10.015. Epub 2007 Feb 5.
- Johnston CA, Tyler C, Fullerton G, Poston WS, Haddock CK, McFarlin B, Reeves RS, Foreyt JP. Results of an intensive school-based weight loss program with overweight Mexican American children. Int J Pediatr Obes. 2007;2(3):144-52. doi: 10.1080/17477160701305864.
- Fullerton G, Tyler C, Johnston CA, Vincent JP, Harris GE, Foreyt JP. Quality of life in Mexican-American children following a weight management program. Obesity (Silver Spring). 2007 Nov;15(11):2553-6. doi: 10.1038/oby.2007.306.
- Johnston CA, Palcic JL, Tyler C, Stansberry S, Reeves RS, Foreyt JP. Increasing vegetable intake in Mexican-American youth: a randomized controlled trial. J Am Diet Assoc. 2011 May;111(5):716-20. doi: 10.1016/j.jada.2011.02.006.
- Johnston CA, Tyler C, Fullerton G, McFarlin BK, Poston WS, Haddock CK, Reeves RS, Foreyt JP. Effects of a school-based weight maintenance program for Mexican-American children: results at 2 years. Obesity (Silver Spring). 2010 Mar;18(3):542-7. doi: 10.1038/oby.2009.241. Epub 2009 Aug 6. Erratum In: Obesity (Silver Spring). 2010 Mar;18(3):647. Fullerton, Ginny [added].
- Johnston CA, Tyler C, McFarlin BK, Poston WS, Haddock CK, Reeves R, Foreyt JP. Weight loss in overweight Mexican American children: a randomized, controlled trial. Pediatrics. 2007 Dec;120(6):e1450-7. doi: 10.1542/peds.2006-3321.
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- H15671
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