Miller, Laura2018-06-222018-06-222018-06-22http://hdl.handle.net/10222/73980Poor sleep is common among children in today’s society. It is important to develop ways to promote healthy sleep in children. It could be that physical activity is a healthy sleep practice for children similarly to adults. The purpose of this research was to examine the relationship between physical activity and sleep among preschool-aged children. In sub-study 1, children wore a waist accelerometer to objectively measure physical activity. Parents completed a survey to subjectively measure their children’s sleep. In sub-study 2, children wore a wrist accelerometer to objectively measure sleep simultaneously to wearing the waist accelerometer in sub-study 1. Physical activity predicted subjective variables of sleep (sleep onset latency (b=0.69, SE=0.41, p=0.09) and night awakenings (b=-1.75, SE=0.54, p<0.01)). Physical activity also predicted objective variables of sleep (sleep efficiency (F(1,25)=4.37, b=0.36, p<0.05)). This research supports promoting physical activity in young children to potentially help prevent consequences of poor sleep on health.enPhysical activitySleepPreschool children