HE ED221 Lecture Notes - Lecture 14: Accelerometer, Melatonin, Cognitive Development
20 Mar 2018
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Document Summary
This lecture focuses on sleep trends among children and adults in canada and around the world, as well as explores the integrated nature of movement behaviours. Also discussed is the concept of sleep hygiene, which includes habits and practices conductive to sleeping well on a regular basis. On average, 7-9 hours of sleep is recommended for adults, and 7-8 is recommended for older adults. On the other hand, some research has found that long sleep durations (9+ hours) are associated with increased morbidity and mortality, there is a u-shaped relationship with sleep duration and risk of mortality. Chms did a study evaluating accelerometers on individuals during waking hours, and the results showed that only 54 percent of adults were meeting the sleep guidelines. However, faults in the study include the time measured starts with taking off the accelerometer, not the actual time of falling asleep.
