Overweight and Obesity
Conditions
Brief summary
The purpose of this study is to determine whether a sensor device called an Automatic Ingestion Monitor (AIM) that is worn on eyeglasses can be used with a smartphone to change eating behavior. Participants will wear the device for one week of no-intervention observation. They will then test behavioral interventions focused on eating for two weeks. The researchers hypothesize that messages sent to a smartphone that are based on information from the AIM can reduce the amount of food that is eaten and slow eating.
Interventions
BEHAVIORALEat Less Intervention
A sensor worn on eyeglasses monitors eating and provides messages to a smartphone when eating occurs to prompt small reductions in the amount of food eaten.
BEHAVIORALEat Slower Intervention
A sensor worn on eyeglasses monitors eating and provides messages to a smartphone when eating occurs to prompt small reductions in the rate of eating.
Sponsors
The Miriam Hospital
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* Body mass index (BMI) between 27 and 45 kg/m-squared * Weight stable within 5% in the past 6 months * Self-reports basic familiarity with use of a smartphone
Exclusion criteria
* Diagnosed diabetes (type 1 and 2) * Any poorly controlled medical condition that could affect weight and/or eating behavior (e.g., hypothyroidism) * Medical conditions or use of medications or diets/supplements known to affect energy regulation or appetite * Difficulty chewing or swallowing * Diagnosed eating disorder * Night or shift work * Current participation in a weight loss program * History of bariatric surgery * Current pregnancy or lactation within the past 1 year, or planning a pregnancy during the study participation period * Consuming a medically-prescribed or unusual diet (e.g., macrobiotic) * Food allergies or sensitivities, or other conditions which result in avoidance of a wide range of foods (e.g. celiac disease, tree nut allergy) * Reported recreational drug use * Report of conditions that would significantly interfere with an ability to follow the protocol including terminal illness, substance abuse, or other significant uncontrolled psychiatric problem
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Total energy intake | Daily average computed for the 7-day observation period and each 7-day intervention period | Total amount of energy consumed from foods and beverages |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Energy intake per eating occasion | Average intake per eating occasion computed for the 7-day observation period and each 7-day intervention period | Amount of energy consumed from foods and beverages during each eating occasion |
| Rate of eating per eating occasion | Average intake per eating occasion computed for the 7-day observation period and each 7-day intervention period | Chews per minute during each eating occasion. |
Countries
United States
Outcome results
None listed