Le rythme veille—sommeil chez l'adolescent de 15 à 20 ans. Enquête réalisée dans un lycée pendant dix jours consécutifs

Mantz, J.; Muzet, Alain; Winter, Andreas

doi:10.1016/s0929-693x(00)88741-2

Cited by 17 publications

(1 citation statement)

References 9 publications

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“…The data that are available for this age group (10 to 17 years) are dominated by the observation that they go to bed considerably later in the evening (particularly if they have access to television or live in latitudes where summer evenings can be very long) and so tend to be sleep-deprived on school days [53-64]. At weekends, they catch up on lost sleep by extended time spent in bed (lie-ins).…”

Section: Reviewmentioning

confidence: 99%

Daily rhythms of the sleep-wake cycle

Waterhouse

Fukuda

Morita

2012

J Physiol Anthropol

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The amount and timing of sleep and sleep architecture (sleep stages) are determined by several factors, important among which are the environment, circadian rhythms and time awake. Separating the roles played by these factors requires specific protocols, including the constant routine and altered sleep-wake schedules. Results from such protocols have led to the discovery of the factors that determine the amounts and distribution of slow wave and rapid eye movement sleep as well as to the development of models to determine the amount and timing of sleep. One successful model postulates two processes. The first is process S, which is due to sleep pressure (and increases with time awake) and is attributed to a 'sleep homeostat'. Process S reverses during slow wave sleep (when it is called process S'). The second is process C, which shows a daily rhythm that is parallel to the rhythm of core temperature. Processes S and C combine approximately additively to determine the times of sleep onset and waking. The model has proved useful in describing normal sleep in adults. Current work aims to identify the detailed nature of processes S and C. The model can also be applied to circumstances when the sleep-wake cycle is different from the norm in some way. These circumstances include: those who are poor sleepers or short sleepers; the role an individual's chronotype (a measure of how the timing of the individual's preferred sleep-wake cycle compares with the average for a population); and changes in the sleep-wake cycle with age, particularly in adolescence and aging, since individuals tend to prefer to go to sleep later during adolescence and earlier in old age. In all circumstances, the evidence that sleep times and architecture are altered and the possible causes of these changes (including altered S, S' and C processes) are examined.

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Section: Reviewmentioning

confidence: 99%

Daily rhythms of the sleep-wake cycle

Waterhouse

Fukuda

Morita

2012

J Physiol Anthropol

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Is obesity associated with poor sleep quality in adolescents?

Gupta

Mueller

Chan

et al. 2002

American J Hum Biol

353

263

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Obesity has reached epidemic proportions in the U.S. and more developed countries, particularly so among adolescents. A substantial impact on public health could be achieved if other factors causing obesity besides the conventional ones of diet and physical activity could be identified and acted upon. The present study investigates whether there is a link between low sleep quality and obesity in a tri-ethnic, cross-sectional sample (n = 383) of male and female adolescents ages 11-16 years old (Heartfelt Study). Sleep quality was expressed as two variables, total sleep time and sleep disturbance time obtained by 24-hour wrist actigraphy. Percent body fat and body mass index (BMI) were used together to define obesity. The potential influence of demographic and behavioral confounders were considered in models that described the relation of sleep to obesity occurrence. Obese adolescents experienced less sleep than nonobese adolescents (P < 0.01). For each hour of lost sleep, the odds of obesity increased by 80%. Sleep disturbance was not directly related to obesity in the sample, but influenced physical activity level (P < 0.01). Daytime physical activity diminished by 3% for every hour increase in sleep disturbance. The above observations were independent of potential confounding variables. Inadequate and poor sleep quality in adolescents may be important factors to consider in the prevention of childhood obesity.

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Normal sleep in children

Samson-Dollfus

2003

Sleep

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Le rythme veille—sommeil chez l'adolescent de 15 à 20 ans. Enquête réalisée dans un lycée pendant dix jours consécutifs

Cited by 17 publications

References 9 publications

Daily rhythms of the sleep-wake cycle

Daily rhythms of the sleep-wake cycle

Is obesity associated with poor sleep quality in adolescents?

Normal sleep in children

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