Body Weight, Obesity, Overweight
Conditions
Brief summary
The purpose of this study is to conduct a randomized controlled trial to compare the weight losses produced by the Weight Watchers Online program revised for 2015 (WWO2015) and WWO2015 plus the provision of an electronic scale and weekly email feedback on weight loss (WWO2015 Enhanced), over a 6-month period.
Interventions
BEHAVIORALWeight Watchers Online 2015 Program
Access to the Weight Watchers Online 2015 program available via the Internet on personal computers, tablet computers, and/or smartphones already owned by participants.
OTHERElectronic Scale with Feedback
Provision of an electronic scale that automatically transmits body weights to the Weight Watchers Online 2015 program, which generates a weekly feedback message on weight loss progress.
Sponsors
WW International Inc
University of Tennessee
The Miriam Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Age 18-70 years * Body mass index (BMI) between 27 and 40 kg/m2 * Both genders will be recruited; At least 10% of participants will be men. Enrollment of women will be capped at n = 324 (90%) to meet this goal. * All ethnic groups will be recruited, with a goal of recruiting 10% minorities * English speaking * Have access to the Internet via a computer, and basic computer skills
Exclusion criteria
* Report health problems that make weight loss or unsupervised exercise unsafe or unreasonable * Report a heart condition, chest pain during periods of activity or rest, or loss of consciousness on the Physical Activity Readiness Questionnaire1 * Are currently pregnant or breastfeeding, or intend to become pregnant in the next 12 months * Are planning to move outside of the state within the next 12 months * Report any cognitive or physical limitations that preclude use of a personal computer * Have participated in a study conducted by the WCDRC or UT in the past 2 years * Have followed a commercial weight-loss program within the previous 6 months or who are currently following a commercial weight loss program * Weight loss of ≥ 5% of initial body weight in the last 6 months * History of clinically diagnosed eating disorder excluding Binge Eating Disorder. * Previous surgical procedure for weight loss * Currently taking weight loss medication * Treatment of cancer within the last 6 months
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change in body weight, measured in kilograms | 3 and 6 months after randomization |
Secondary
| Measure | Time frame |
|---|---|
| Engagement with the electronic intervention system, measured by number of body weights, foods, and physical activity bouts recorded per week | 3 and 6 months after randomization |
Countries
United States
Outcome results
None listed