The purpose of the thesis was to investigate how diffirent levels of physical activity intensity
affect the time it takes to fall asleep and the duration of daytime sleep in preschool children in
kindergarten. The research was based on observing a group of children aged 1–3 years and
involved a twenty-day monitoring period in which children alternated between low- and high-
intensity physical activities priop to their daytime nap.
The study included fourteen children aged 1–3 years. Data on movement intensity, time to fall
asleep, and sleep duration were collected using observation forms and analysed using basic
descriptive statistics, paired-sample t-tests, and correlation analysis. The results showed that
after high-intensity physical activities, children fell asleep faster than after low-intensity
activities, with a statistically significant shorter latency to sleep. Furthermore, children, on
average, slept longer after high-intensity activities than after low-intensity activities.
The findings indicate that carefully scheduling higher-intensity physical activities before the
daytime nap can promote faster calming in children and extend their sleep duration.
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