Short sleep duration increases energy intakes but does not change energy expenditure in normal-weight individuals.

ABSTRACT:

Background

Evidence suggests a relation between short sleep duration and obesity.

Objective

We assessed energy balance during periods of short and habitual sleep in normal-weight men and women.

Design

Fifteen men and 15 women aged 30-49 y with a body mass index (in kg/m(2)) of 22-26, who regularly slept 7-9 h/night, were recruited to participate in this crossover inpatient study. All participants were studied under short (4 h/night) and habitual (9 h/night) sleep conditions, in random order, for 5 nights each. Food intake was measured on day 5, and energy expenditure was measured with the doubly labeled water method over each period.

Results

Participants consumed more energy on day 5 during short sleep (2813.6 ± 593.0 kcal) than during habitual sleep (2517.7 ±

SUBMITTER: St-Onge MP 

PROVIDER: S-EPMC3142720 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature