2011
DOI: 10.3922/j.psns.2011.3.005
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Effect of morning exercise in sunlight on the sleep-wake cycle in adolescents.

Abstract: A delay in bedtime occurs in adolescence compared with childhood. However, the early waking that morning school hours impose leads to partial sleep deprivation. Although exposure to light is the most important regulator of circadian rhythm in mammals, physical exercise influences circadian synchronization. To assess the effect of morning physical exercise in sunlight on the sleep-wake cycle (SWC) in adolescents, 160 first-and second-year high-school students were exposed to classes in their usual classroom (Gr… Show more

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Cited by 4 publications
(3 citation statements)
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References 46 publications
(84 reference statements)
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“…In similar fashion, three studies carried out in Brazil with sedentary young adults did not identify any association between regular physical exercise and improvements in sleep patterns (12)(13)28) . Like these three cited Brazilian studies, the divergence between the data of this investigation and other investigations may arise from methodological divergences in the definition of physical activity or also from the low intensity of exercise carried out by young people.…”
Section: Discussionmentioning
confidence: 86%
“…In similar fashion, three studies carried out in Brazil with sedentary young adults did not identify any association between regular physical exercise and improvements in sleep patterns (12)(13)28) . Like these three cited Brazilian studies, the divergence between the data of this investigation and other investigations may arise from methodological divergences in the definition of physical activity or also from the low intensity of exercise carried out by young people.…”
Section: Discussionmentioning
confidence: 86%
“…The authors found that the increase in the prevalence of poor and very poor sleep quality increased the likelihood of schoolchildren always presenting sleep alterations and inadequate social behaviour in relation to those with good and very good sleep quality. Poor sleep quality seems to contribute to the development of sleep disorders, as well as depression, anxiety and low self-esteem (55) . Research conducted with Israeli children 7 to 13 years of age noted that lower sleep efficiency and higher nocturnal awakening predicted poor performance in processing emotional information (56) .…”
Section: Discussionmentioning
confidence: 99%
“…In this respect, morning exercise can draw academic significance in 2 of 11 studies targeting adolescents. For instance, consistent morning exercise participation, such as swimming in adolescents, positively affects the sleep-wake cycle [11]. In addition, Babadi et al [12] observed that adolescents who engaged in morning exercise at school had a lower prevalence of hypertension.…”
Section: Introductionmentioning
confidence: 99%