Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
45 participants
INTERVENTIONAL
2010-01-31
2011-08-31
Brief Summary
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Detailed Description
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All participants in the investigation will receive a standard 12-week behavioral obesity intervention. The intervention will include an activity goal that participants will gradually work to achieve over the course of the 12-week intervention along with standard behavioral weight loss strategies. One condition will receive a dietary prescription for weight loss that focuses solely on lowering the ED of the diet, another condition will receive the traditional dietary prescription used in behavioral weight loss interventions that reduces energy intake, and the third condition will receive both prescriptions. Pre and post intervention measurements will be taken to determine if there are differences between groups.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Energy Density
Standard Behavioral Weight Loss Intervention
12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies
Dietary Goal: Reduction in Energy Density of Dietary Intake
Consume low ED foods (ED \< 1.0) for at least 10 items consumed per day and limit high ED foods (ED \> 3.0) to two items consumed per day.
Lifestyle Treatment
Standard Behavioral Weight Loss Intervention
12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies
Dietary Goal: Reduction of Energy Intake
Limit energy intake to 1200 to 1500 kcals/day and \< 30% kcals from fat.
Energy Density + Lifestyle Treatment
Standard Behavioral Weight Loss Intervention
12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies
Dietary Goal: Reduction in Energy Density of Dietary Intake
Consume low ED foods (ED \< 1.0) for at least 10 items consumed per day and limit high ED foods (ED \> 3.0) to two items consumed per day.
Dietary Goal: Reduction of Energy Intake
Limit energy intake to 1200 to 1500 kcals/day and \< 30% kcals from fat.
Interventions
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Standard Behavioral Weight Loss Intervention
12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies
Dietary Goal: Reduction in Energy Density of Dietary Intake
Consume low ED foods (ED \< 1.0) for at least 10 items consumed per day and limit high ED foods (ED \> 3.0) to two items consumed per day.
Dietary Goal: Reduction of Energy Intake
Limit energy intake to 1200 to 1500 kcals/day and \< 30% kcals from fat.
Eligibility Criteria
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Inclusion Criteria
* Body mass index (BMI) between 25 and 45 kg/m2
Exclusion Criteria
* Report being unable to walk for 2 blocks (1/4 mile) without stopping
* Report major psychiatric diseases/organic brain syndromes via a phone screen
* Are currently participating in a weight loss program and/or taking weight loss medication or lost \> 5% of body weight during the past 6 months
* Intend to move to another city within the time frame of the investigation
* Are pregnant, lactating, less than 6 months post-partum, or plan to become pregnant during the time frame of the investigation
* Have had gastric surgery for weight loss
21 Years
65 Years
ALL
No
Sponsors
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The University of Tennessee, Knoxville
OTHER
Responsible Party
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Hollie Raynor
Professor
Principal Investigators
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Hollie A Raynor, PhD, RD, LDN
Role: PRINCIPAL_INVESTIGATOR
University of Tennessee
Locations
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Healthy Eating and Activity Laboratory
Knoxville, Tennessee, United States
Countries
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References
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Raynor HA, Steeves EA, Hecht J, Fava JL, Wing RR. Limiting variety in non-nutrient-dense, energy-dense foods during a lifestyle intervention: a randomized controlled trial. Am J Clin Nutr. 2012 Jun;95(6):1305-14. doi: 10.3945/ajcn.111.031153. Epub 2012 May 2.
Related Links
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Healthy Eating and Activity Laboratory Homepage
Other Identifiers
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IRB 8107 B
Identifier Type: -
Identifier Source: org_study_id
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