Impact of Yo-Yo Sleep on Cardiometabolic Health
Columbia University
Summary
The goal of this clinical trial is to test the impact of repeated intermittent short sleep, with short sleep maintained 5 days per week followed by 2 days of prolonged sleep, compared to daily adequate sleep, on energy balance and cardiometabolic risk. A secondary goal of this research is to determine if maintaining a constant midpoint of sleep while undergoing intermittent short sleep, leads to better outcomes than intermittent short sleep with a 2-hour delay in sleep midpoint. The aims of this research will be tested in the context of a 3-group, parallel-arm, outpatient intervention of 4 weeks in duration, in young-to-middle-aged adults (aged 18-49 years).
Description
A large portion of the U.S. adult population reports insufficient sleep on a nightly basis. It has been shown that sustained insufficient sleep leads to adverse cardiometabolic risk profile and positive energy balance. However, sleep patterns in real life are not consistent over weeks. Individuals not obtaining sufficient sleep during the week may compensate by sleeping longer on weekends. The differences in sleep duration between week and weekend nights is approximately 1 hour, mostly due to delaying wake times rather than advancing bedtimes. A drawback of such behaviors is resultant change i…
Eligibility
- Age range
- 18–49 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Aged 18 to 49 years * BMI 20-29.9 kg/m2 * Habitually sleeping 7-9 hours/night without sleep aids or naps Exclusion Criteria: * Sleep disorders * Psychiatric disorders (including eating disorders) and seasonal affective disorder * Pregnancy (current/prior year) * Breastfeeding * Smokers (Any cigarette smoking or ex-smokers \<3years) * Diabetes * Elevated blood pressure, taking beta-blockers * Individuals taking anti-coagulants or anti-platelets * Recent weight change or participation in a weight loss program or have ever had bariatric surgery or other weight loss or gas…
Interventions
- BehavioralIntermittent Short Sleep (ISS)
Restricted sleep duration of \<5.5 h/night for 5 nights (SR) followed by 2 nights of 9.5 hours of time in bed (TIB) (recover sleep) each week.
- BehavioralSocial Jetlag (SJL)
2-hour delayed sleep timing.
- BehavioralSustained Adequate Sleep (SAS)
Goal of ≥7 hours of sleep/night with 8 hours of time in bed (TIB).
Location
- Columbia University Irving Medical CenterNew York, New York