Dataset Information

Longitudinal Associations of Sleep Duration, Morning and Evening Cortisol, and BMI During Childhood.

ABSTRACT: OBJECTIVE:This study aimed to examine associations between sleep duration, BMI, and cortisol levels across childhood. METHODS:Participants included 361 children adopted domestically in the United States. Random-intercept cross-lagged panel models tested for between-person and bidirectional within-person associations of sleep duration, BMI, and morning and evening cortisol at age 4.5 to 9 years. RESULTS:Sleep duration and BMI were stable during childhood, inversely associated at the between-person level, and unrelated to morning or evening cortisol. BMI at age 6 years predicted longer sleep duration and lower evening cortisol at age 7 years, and lower morning cortisol at age 7 years predicted higher BMI at age 9 years within individuals. CONCLUSIONS:The association between sleep and BMI is more likely a stable between-person phenomenon rather than a unidirectional association that develops within individuals over time.

SUBMITTER: Marceau K

PROVIDER: S-EPMC6462140 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Longitudinal Associations of Sleep Duration, Morning and Evening Cortisol, and BMI During Childhood.

Marceau Kristine K Abel Emily A EA Duncan Robert J RJ Moore Phillip J PJ Leve Leslie D LD Reiss David D Shaw Daniel S DS Natsuaki Misaki M Neiderhiser Jenae M JM Ganiban Jody M JM

Obesity (Silver Spring, Md.) 20190228 4

<h4>Objective</h4>This study aimed to examine associations between sleep duration, BMI, and cortisol levels across childhood.<h4>Methods</h4>Participants included 361 children adopted domestically in the United States. Random-intercept cross-lagged panel models tested for between-person and bidirectional within-person associations of sleep duration, BMI, and morning and evening cortisol at age 4.5 to 9 years.<h4>Results</h4>Sleep duration and BMI were stable during childhood, inversely associate ...[more]

PMID: 30816633

Similar Datasets

Project description:Brain recovery after prolonged wakefulness is characterized by increased density, amplitude and slope of slow waves (SW, <4 Hz) during non-rapid eye movement (NREM) sleep. These SW comprise a negative phase, during which cortical neurons are mostly silent, and a positive phase, in which most neurons fire intensively. Previous work showed, using EEG spectral analysis as an index of cortical synchrony, that Morning-types (M-types) present faster dynamics of sleep pressure than Evening-types (E-types). We thus hypothesized that single SW properties will also show larger changes in M-types than in E-types in response to increased sleep pressure. SW density (number per minute) and characteristics (amplitude, slope between negative and positive peaks, frequency and duration of negative and positive phases) were compared between chronotypes for a baseline sleep episode (BL) and for recovery sleep (REC) after two nights of sleep fragmentation. While SW density did not differ between chronotypes, M-types showed higher SW amplitude and steeper slope than E-types, especially during REC. SW properties were also averaged for 3 NREM sleep periods selected for their decreasing level of sleep pressure (first cycle of REC [REC1], first cycle of BL [BL1] and fourth cycle of BL [BL4]). Slope was significantly steeper in M-types than in E-types in REC1 and BL1. SW frequency was consistently higher and duration of positive and negative phases constantly shorter in M-types than in E-types. Our data reveal that specific properties of cortical synchrony during sleep differ between M-types and E-types, although chronotypes show a similar capacity to generate SW. These differences may involve 1) stable trait characteristics independent of sleep pressure (i.e., frequency and durations) likely linked to the length of silent and burst-firing phases of individual neurons, and 2) specific responses to increased sleep pressure (i.e., slope and amplitude) expected to depend on the synchrony between neurons.

Dataset Information

Longitudinal Associations of Sleep Duration, Morning and Evening Cortisol, and BMI During Childhood.

Publications

Longitudinal Associations of Sleep Duration, Morning and Evening Cortisol, and BMI During Childhood.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets