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Sponsored by: |
University of Tennessee |
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Information provided by: | University of Tennessee |
ClinicalTrials.gov Identifier: | NCT00656045 |
The purpose of this investigation is to conduct an 8-week pilot study to examine the effects of two different leisure-time activity prescriptions on dietary intake, leisure-time activities, and weight loss in 26 adults receiving a standard 8-week behavioral weight loss intervention.
Condition | Intervention |
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Obesity Physical Activity |
Behavioral: Dietary Behavioral: Physical Activity Behavioral: TV Watching |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Single Blind (Outcomes Assessor), Active Control, Parallel Assignment, Efficacy Study |
Official Title: | The Effects of Two Different Leisure-Time Activity Prescriptions on Eating and Activity Behaviors During Behavioral Weight Loss Treatment |
Enrollment: | 24 |
Study Start Date: | March 2008 |
Study Completion Date: | September 2008 |
Primary Completion Date: | July 2008 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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A: Experimental
Arm A focuses on increasing the participant's physical activity level.
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Behavioral: Dietary
All participants in the investigation will receive a standard 8-week behavioral obesity intervention with 8 weekly, 1 hour group counseling and education sessions. The intervention will include a reduced caloric prescription (1200-1500 kcal/day) and fat gram prescription (30% or less kcals from fat).
Behavioral: Physical Activity
The Physical Activity arm will receive an activity goal (200 minutes/week of moderate-intense physical activity).
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B: Experimental
Arm B focuses on decreasing the amount of time the participant spends watching Television.
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Behavioral: Dietary
All participants in the investigation will receive a standard 8-week behavioral obesity intervention with 8 weekly, 1 hour group counseling and education sessions. The intervention will include a reduced caloric prescription (1200-1500 kcal/day) and fat gram prescription (30% or less kcals from fat).
Behavioral: TV Watching
The TV Watching arm will receive a TV watching goal of watching less than 10 hours of TV/week.
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In adult observational studies, TV viewing has been positively related to overweight and obesity. It is theorized that TV watching influences eating and activity behaviors, such that with greater TV watching less physical activity and greater consumption of energy occurs, producing a positive energy balance state. While no experimental research has been conducted with adults examining the influence of reducing TV watching on weight status, experimental research conducted with children does indicate that lower levels of TV watching can produce reduced energy intake and greater levels of physical activity. Most importantly, family-based, behavioral childhood obesity interventions that have targeted reducing sedentary behaviors (which includes TV watching) have found that as compared to targeting increasing physical activity during treatment, similar increases in activity and fitness occur, but that greater weight loss and greater increases in liking for physical activity occur when sedentary behaviors, as compared to physical activity, are targeted in family-based behavioral childhood weight control programs.
Thus, this investigation will involve an 8-week pilot study to examine the effects of two different leisure-time activity prescriptions. All participants in the investigation will receive a standard 8-week behavioral obesity intervention. The intervention will include a reduced caloric prescription (1200-1500 kcal/day) and fat gram prescription (30% or less kcals from fat). One condition will receive an activity goal (200 minutes/week of moderate-intense physical activity [Physical Activity]), while the other condition will receive a TV watching goal (10 hours/week [ TV Watching]). Participants will be assessed at 0 and 9 weeks (pre- and post-intervention) on measures of dietary intake, physical activity, TV watching, liking of physical activity and TV watching, and weight.
Ages Eligible for Study: | 21 Years to 65 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
United States, Tennessee | |
University of Tennessee | |
Knoxville, Tennessee, United States, 37996 |
Principal Investigator: | Hollie A. Raynor, Ph.D. | University of Tennessee |
Study Chair: | David Bassett Jr., Ph.D. | University of Tennessee |
Study Chair: | Dixie Thompson, Ph.D. | University of Tennessee |
Study Chair: | Amy Gorin, Ph.D. | University of Connecticut |
Responsible Party: | University of Tennessee ( Hollie Raynor, Ph.D., R.D. ) |
Study ID Numbers: | LEAN E01-1703-011 |
Study First Received: | April 4, 2008 |
Last Updated: | September 26, 2008 |
ClinicalTrials.gov Identifier: | NCT00656045 |
Health Authority: | United States: Institutional Review Board |
Obesity Physical Activity Weight Loss Exercise |
Dietary Intake Energy Behavioral Healthy Eating |
Body Weight Signs and Symptoms Obesity Weight Loss |
Nutrition Disorders Overweight Overnutrition Healthy |