Effect of Sleep Timing, Independent of Duration, on Food Intake and Metabolic Control of Energy Balance
Abstract
The purpose of this study is to test the effects of sleep and meal timing, independent of sleep duration, on glucose regulation and metabolic and hormonal control of energy balance in normal weight adults.
This study will be a 4-phase, randomized controlled study of 5 days each in which participants will undergo 2 phases of late sleep times that differ in meal timing (normal or late) and 2 phases of normal sleep times that differ in meal timing (normal or late).
The Aims and Hypotheses of this study are:
Aim 1: To compare hormonal regulation of food intake and metabolic risk markers in response to altered sleep and meal timing.
* Hypothesis 1: There will be an interaction between sleep and meal time on glucose, insulin, and glucose and insulin area under the curve after the glucose tolerance test such that the late sleep/late meal will result in the worst metabolic profile, normal sleep/late meal and late sleep/normal meal will have an intermediate profile, and normal sleep/normal meal will result in the best metabolic profile.
* Hypothesis 2: There will be an interaction between sleep and meal time on leptin and ghrelin concentrations such that the late sleep/late meal timing phase will result in low leptin/high ghrelin, normal sleep/late meal timing and late sleep/normal meal will have an intermediate profile, and normal sleep/normal meal timing will result in high leptin/low ghrelin.
Aim 2: To compare food intake over a 24-h period in response to altered sleep and meal…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 5 participants or records.
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