The Interaction of Shift Work and Food Environment on Eating Behaviors and Appetite
Trial Snapshot
- Phase
- Not Applicable
- Status
- Active, not recruiting
- Sponsor
- Columbia University
- Enrollment
- 100
- Locations
- 1
- Primary Endpoint
- Food intake
Study Overview
Brief Summary
This study will compare eating behaviors and measures of hunger and fullness between day and night workers in order to better understand why night workers are at increased risk for obesity and related diseases.
Study Design
- Study Type
- Interventional
- Allocation
- Non Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Single (Outcomes Assessor)
Masking Description
Statistician will be blinded to participant group and condition.
Eligibility Criteria
- Ages
- 20 Years to 55 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Work ~ 8-hour shifts during day or night on 3 or more consecutive days of the week
- •BMI 19-35 kg/m^2
- •Age 20-55 years of age
- •Metabolically healthy
- •Weight stable over previous 3 months
- •Lives in New York City area
Exclusion Criteria
- •Pregnant or less than 1 year postpartum at time of study
- •History of drug or alcohol abuse
- •Rotating shift work
- •Habitual sleep duration of more than 6 hour per night
- •Obstructive sleep apnea
- •Transmeridian travel
- •Type 2 diabetes
- •Cardiovascular disease
- •Hypertension
- •Participation in diet or weight loss program in the 3 months prior to enrollment
- •Psychiatric or sleep disorder
- •Food allergies or intolerances
- •Dislike of or unwillingness to eat test foods
Arms & Interventions
Day worker
Men and women who work only day shift for at least 3 consecutive days of the week
Intervention: Portion size (Behavioral)
Night worker
Men and women who work only night shift for at least 3 consecutive days of the week
Intervention: Portion size (Behavioral)
Outcomes
Primary Outcomes
Food intake
Time Frame: 24-hours intake period
Food by weight (g) in response to variations in portion served
Energy intake
Time Frame: 24-hours intake period
Food by energy (kcal) in response to variations in portion served
Energy density consumed
Time Frame: 24-hours intake period
Energy density consumed (kcal/g) in response to variations in portion served
Secondary Outcomes
- Appetite-regulating hormones(2-hours measurement period)
- Hunger and fullness(24-hours measurement period)
Investigators
Marie-Pierre St-Onge
Associate Professor of Nutritional Medicine
Columbia University