Article Version of Record

Assessing the Influence of Sleep-Wake Variables on Body Mass Index (BMI) in Adolescents

Author(s) / Creator(s)

Randler, Christoph
Haun, Julia
Schaal, Steffen

Abstract / Description

Recent work has established an association between overweight/obesity and sleep duration, suggesting that short sleep duration and timing of sleeping may lead to overweight. Most of these studies considered sleep-length rather than any other aspects associated with the sleep and wake rhythm, e.g. chronotype, which is a measure of timing of sleeping (‘when to sleep’; based on the midpoint of sleep). The objective of this study was to assess the influence of different factors of the sleep-wake cycle and of co-variates on the Body Mass Index in a cross-sectional questionnaire study. Nine hundred and thirteen pupils (406 boys, 507 girls) from Southwestern Germany participated in this study. Mean age was 13.7 ± 1.5 (SD) years and range was between 11 – 16 years. We found that chronotype (β = .079) and social jetlag (β = .063) showed a significant influence on Body Mass Index (BMI), while sleep duration did not. Social jetlag is the absolute difference between mid-sleep time on workdays and free days. Further, screen time (in front of TV, computer, β = .13) was positively related with BMI. Self-efficacy on nutrition (β = -.11), a psychological variable important in health-behaviour models, showed an influence with high scores on self-efficacy related to lower BMI. A high BMI was correlated with low fast-food consumption (β = -.12) suggesting that adolescents with high BMI may exert some control over their eating.

Keyword(s)

adolescents biological rhythms chronotype sleep duration self-efficacy screen time overweight

Persistent Identifier

Date of first publication

2013-05-31

Journal title

Europe's Journal of Psychology

Volume

9

Issue

2

Page numbers

339–347

Publisher

PsychOpen GOLD

Publication status

publishedVersion

Review status

peerReviewed

Is version of

Citation

Randler, C., Haun, J., & Schaal, S. (2013). Assessing the Influence of Sleep-Wake Variables on Body Mass Index (BMI) in Adolescents. Europe's Journal of Psychology, 9(2), 339–347. https://doi.org/10.5964/ejop.v9i2.558
  • Author(s) / Creator(s)
    Randler, Christoph
  • Author(s) / Creator(s)
    Haun, Julia
  • Author(s) / Creator(s)
    Schaal, Steffen
  • PsychArchives acquisition timestamp
    2018-11-21T10:01:03Z
  • Made available on
    2018-11-21T10:01:03Z
  • Date of first publication
    2013-05-31
  • Abstract / Description
    Recent work has established an association between overweight/obesity and sleep duration, suggesting that short sleep duration and timing of sleeping may lead to overweight. Most of these studies considered sleep-length rather than any other aspects associated with the sleep and wake rhythm, e.g. chronotype, which is a measure of timing of sleeping (‘when to sleep’; based on the midpoint of sleep). The objective of this study was to assess the influence of different factors of the sleep-wake cycle and of co-variates on the Body Mass Index in a cross-sectional questionnaire study. Nine hundred and thirteen pupils (406 boys, 507 girls) from Southwestern Germany participated in this study. Mean age was 13.7 ± 1.5 (SD) years and range was between 11 – 16 years. We found that chronotype (β = .079) and social jetlag (β = .063) showed a significant influence on Body Mass Index (BMI), while sleep duration did not. Social jetlag is the absolute difference between mid-sleep time on workdays and free days. Further, screen time (in front of TV, computer, β = .13) was positively related with BMI. Self-efficacy on nutrition (β = -.11), a psychological variable important in health-behaviour models, showed an influence with high scores on self-efficacy related to lower BMI. A high BMI was correlated with low fast-food consumption (β = -.12) suggesting that adolescents with high BMI may exert some control over their eating.
    en_US
  • Publication status
    publishedVersion
  • Review status
    peerReviewed
  • Citation
    Randler, C., Haun, J., & Schaal, S. (2013). Assessing the Influence of Sleep-Wake Variables on Body Mass Index (BMI) in Adolescents. Europe's Journal of Psychology, 9(2), 339–347. https://doi.org/10.5964/ejop.v9i2.558
  • ISSN
    1841-0413
  • Persistent Identifier
    https://hdl.handle.net/20.500.12034/1190
  • Persistent Identifier
    https://doi.org/10.23668/psycharchives.1382
  • Language of content
    eng
  • Publisher
    PsychOpen GOLD
  • Is version of
    https://doi.org/10.5964/ejop.v9i2.558
  • Keyword(s)
    adolescents
    en_US
  • Keyword(s)
    biological rhythms
    en_US
  • Keyword(s)
    chronotype
    en_US
  • Keyword(s)
    sleep duration
    en_US
  • Keyword(s)
    self-efficacy
    en_US
  • Keyword(s)
    screen time
    en_US
  • Keyword(s)
    overweight
    en_US
  • Dewey Decimal Classification number(s)
    150
  • Title
    Assessing the Influence of Sleep-Wake Variables on Body Mass Index (BMI) in Adolescents
    en_US
  • DRO type
    article
  • Issue
    2
  • Journal title
    Europe's Journal of Psychology
  • Page numbers
    339–347
  • Volume
    9
  • Visible tag(s)
    Version of Record