Weight Watchers Online

Weight Watchers Online

The purpose of this study is to conduct a randomized controlled trial to compare the weight losses produced by the Weight Watchers Online program (WWO) and WWO plus the Philips ActiveLink physical activity system, over a 1-year period, compared to a control group.

Inclusion Criteria:

• Body mass index (BMI) between 27 and 40 kg/m2
• All ethnic groups will be recruited
• 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 Questionnaire
• 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