Author(s): HONÓRIO, S., BATISTA, M., SANTOS, J., SERRANO, J., REBELO, M., MARQUES, J., CARRIÇO, J. , Institution: POLYTECHNIC INSTITUTE OF CASTELO BRANCO-PORTUGAL, Country: PORTUGAL, Abstract-ID: 562

INTRODUCTION:
Adequate sleep is increasingly being recognized as a crucial factor for the health of children and adolescents, as it can influence mental abilities, school performance, behavior, emotional balance, body weight and the risk of falls.
METHODS:
The objective of the study was to analyze and relate the levels of physical activity of students with their hours of sleep. To find out the levels of physical activity practiced by the students, a questionnaire was given, in which the students reported the number of times and duration of Physical Education classes at school, as well as the number of times and duration of other sports activities that students practiced outside the school context. The study had 38 children aged between 7 and 9 years of old (M=8,1±0,86), with 21 boys (53,8%) and 17 girls (43,6%). For sleep analysis, the QHSC (Childrens Sleep Habits Questionnaire) translated and validated for the Portuguese language and culture was used. It is a questionnaire completed by parents, with the aim of assessing sleep patterns in school-aged children. Initially composed of 45 items, 33 of them were grouped into eight subscales that reflect different aspects of sleep. These subscales include resistance on going to bed, sleep initiation, sleep duration, sleep anxiety, night awakenings, parasomnias, sleep breathing disorders, and daytime sleepiness. This 33-item framework has been validated for use as a screening tool for sleep disorders in school-aged children aged 4 to 10 years.
RESULTS:
we found that students who practiced physical activity once a week had a sleep index of 49, those who practiced physical activity twice a week had an index of 48, those who practiced physical activity 3 times a week 46.25, those who practiced 4 times a week 45.71, those who practiced 5 times 43 in sleep index.
Regarding the results obtained from the correlation, we found that there are no significant changes, however, they present values between 0.16 and 0.19.
CONCLUSION:
In the studies of Rocha (2021) and Valente (2014), the same situation was observed in which students who were more active during the weekdays had better sleep quality.
It was found, according to the results, that the greater the practice and duration of physical activities, the better the sleep index evidenced by the children. It is concluded that there is indeed a beneficial relationship between the practice of physical activity and the sleep pattern that presents lower rates of disturbance in the evaluated preschool children.