Overweight and Obesity
Conditions
Keywords
Weight loss, Sleep duration
Brief summary
A series of studies are proposed to develop an intervention to increase sleep duration and study the effects on eating, exercise, and weight control. The hypothesis is that increasing sleep duration will help improve weight loss and maintenance.
Detailed description
Study 1 is conducted in a sleep laboratory. Participants sleep short duration (approximately four hours per night) on one weekend and long duration (approximately nine hours per night) on another weekend. Study 2 is examining ways to increase sleep duration in overweight individuals with short sleep and examining the effects on short term weight loss. Study 3 is comparing a standard weight loss program with a novel Sleep+Weight Loss intervention.
Interventions
BEHAVIORALSleep Duration
Subjects are taught sleep hygiene strategies to increase their sleep; they record their sleep in a diary and wear an actigraph and call in their sleep to the office each day.
BEHAVIORALNo change in sleep
This group is taught to maintain their current sleep habits.
Sponsors
The Miriam Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
25 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* age 25 to 45; * BMI 25 to 50; * healthy; * sleep 6.5 hours or less per night
Exclusion criteria
* use of sleep medications; * sleep apnea; * third shift worker
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Sleep Duration | 4 weeks | Participants with verified short sleep are taught to increase their sleep either gradually or immediately. These two groups are compared to a control group who makes no changes in their sleep. The primary outcome is sleep duration per night as determined by actigraphy. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Eating Behavior | 4 weeks | 24-hour recalls are used to estimate dietary intake at baseline and after 4 weeks of sleep intervention. |
| Physical Activity | 4 weeks | Objective measures of physical activity are obtained before and after the 4-week sleep intervention. |
Countries
United States
Outcome results
None listed