Delivering an Evidence-Based Lifestyle Intervention Via the Internet: A Randomized Controlled Study

Please note: Only individuals who receive primary care at one of the Internal Medicine
clinics at Milton S. Hershey Medical Center in Hershey, PA, are eligible for this study.

Inclusion Criteria:

- Age between 18 and 80 years old

- Obese based on World Health Organization criteria (BMI>30kg/m2)

- Receiving primary care from and referred by a provider at one of the Internal
Medicine clinics at Milton S. Hershey Medical Center in Hershey, PA

- Able to understand and sign an informed consent document

- Able to communicate with the investigator and understand the requirements of this
study

Exclusion Criteria

- Primary care provider determines that the individual is unable to safely undertake
moderately intense unsupervised physical activity (the equivalent of 30 minutes of
brisk walking)

- Primary care provider determines that the individual has inadequate cognitive
function to participate in either active intervention curricula

- Women who are pregnant, who are planning to become pregnant in the next two years, or
who become pregnant during the study

- Women who are breastfeeding

- Prisoners

- Children

- Individuals who are planning to have bariatric surgery or who have had bariatric
surgery in the past two years

- Individuals with uncontrolled hypertension (systolic blood pressure (SBP) >165,
diastolic blood pressure (DBP) >100)

- Individuals with an edematous state that interferes with body weight assessment
(e.g., severe congestive heart failure, end- stage renal disease, or ascites),

- Individuals already using weight loss therapy

- Individuals with an inability to learn adequately from English language audio-taped
materials

- Individuals with a lack of high-speed Internet access (Internet access will be based
on participant perception; for example, participants could use computers belonging to
friends, relatives, or libraries if they feel that they can access them regularly)

- Individuals without access to a scale

- Individuals unable to attend an Orientation session at Hershey Medical Center in
Hershey, PA