Overweight
Conditions
Brief summary
Hypothesis: Overweight subjects using a Virtual Coach will demonstrate improved adherence to an exercise regime. This study is designed to examine the effect of a computer program called a Virtual Coach and find out if it helps people become more active. This program acts as a kind of a personal trainer and will give you feedback. All participants in the study will receive an activity monitor to wear during the study and a website to use to track activity. Half of the participants will also receive the virtual coach software. This software will have to be downloaded onto your computer, and we will ask that you check in with the coach using the software three times a week for 12 weeks. The group you will be placed in will be selected by chance.
Interventions
OTHERVirtual Coach software
The intervention being tested, the Virtual Coach, is an automated empathic computer agent which will run on patient's home computer and engage the patient in dialogues to deliver personalized feedback, education and coaching based on physiological data.
OTHERActivity monitor and website
The control group will use an activity monitor and a website to track activity levels.
Sponsors
Northeastern University
FitSense/FitLinxx
Massachusetts General Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
20 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
* Adults age 20-55 inclusive * BMI between 25 and 35 inclusive (overweight and Class 1 obese subjects) * PC Computer with an available USB port, speakers and high-speed internet access in a secure setting (home or private office) * Fluency in English (spoken and written) * Have a Primary Care Physician * Answer No to all 7 questions on PAR-Q OR have letter from PCP clearing them to take part in study
Exclusion criteria
* Disability, medical or surgical condition preventing or precluding moderate physical activity. * Cognitive impairment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome being measured is the level of activity monitored by the activity monitor. Control and Intervention subjects will be encouraged to wear the activity monitor on a daily basis for the 12 week course of the study. | 12 weeks |
Secondary
| Measure | Time frame |
|---|---|
| Change in subject weight. Subjects will be weighed at their first study visit and their final visit. | 12 weeks |
| Change in subject waist circumference. Subjects will be measured at their first study visit and their final visit | 12 weeks |
| Subject rating on the working alliance inventory score | 12 weeks, assessed at the end of the study |
| Changes in self-efficacy, quality of or readiness to change (as measured through surveys at the beginning and end of the study). | 12 weeks |
Countries
United States
Outcome results
None listed