631
Participants
Start Date
August 31, 2013
Primary Completion Date
December 31, 2018
Study Completion Date
April 30, 2020
Lifestyle intervention
"The weight-loss treatments will include two phases. Phase 1 will last 4 months and Phase 2 will last 12 more months.~Phase 1 will be 4 months of weight loss treatment~Phase 2 will be 12 months of follow-up contact by group telephone call.~The participants will learn about nutrition, physical activity, and safe methods to lose weight during Phase 1.~During Phase 2 participants will receive two phone calls per month from their group leader for the first 6 months, and one phone call per month for the next 6 months."
Health education control
"The weight-loss treatments will include two phases. Phase 1 will last 4 months and Phase 2 will last 12 more months.~Phase 1 will be 4 months of weight loss treatment~Phase 2 will be 12 months of follow-up contact by email.~The participants will learn about nutrition, physical activity, and safe methods to lose weight during Phase 1.~During Phase 2 participants will receive a specially prepared newsletter two times per month. The newsletter will contain educational information about proper eating and physical activity. The newsletters will include low-fat and low-calorie recipes, along with tip sheets that describe strategies to help them maintain lost weight."
Individual
"The weight-loss treatments will include two phases. Phase 1 will last 4 months and Phase 2 will last 12 more months.~Phase 1 will be 4 months of weight loss treatment~Phase 2 will be 12 months of follow-up contact by on-on-one telephone call.~The participants will learn about nutrition, physical activity, and safe methods to lose weight during Phase 1.~During Phase 2 participants will receive two phone calls per month from their group leader for the first 6 months, and one phone call per month for the next 6 months."
All Groups
All participants will receive the following: Questionnaires, height, weight, waist measurement, blood pressure, heart rate, electrocardiogram, blood sample, urine sample, urine pregnancy test (for females only), 400 meter walking test
Hamilton County, Jasper
Union County, Lake Butler
Columbia County, Lake City
Baker County, Macclenny
Suwannee County, Live Oak
Lafayette County, Mayo
Bradford County, Starke
Flagler County, Bunnell
Putnam County, Palatka
Madison County, Madison
Taylor County, Perry
Levy County, Bronson
Dixie County, Cross City
Gilchrist County, Trenton
National Heart, Lung, and Blood Institute (NHLBI)
NIH
University of Florida
OTHER