Vigorous exercise can result in better sleep for kids, according to the results of a new study by a team of German researchers. The study involved 11 kids with a mean age of about 12 years who performed two bicycle exercise sessions – one of medium intensity and the other of high intensity – on different days. The researchers found that high intensity exercise was associated with shorter sleep latency, more deep sleep and greater sleep efficiency. These results suggest that exercise intensity may be the determining factor in the sleep effects of exercise seen in children.

Markus Dworak et al.Sleep Medicine .March 2008 (Vol. 9, Issue 3, Pages 266-272)

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