Effect of pre-flight circadian phase-shifting approach on sleep variables after 9 time-zone eastward transition: a case report

摘要

The purpose of this study was to evaluate the effects of a pre-flight circadian phase-shifting approach on sleep variables after 9 time-zone eastward transition. Two athletes were requested to monitor their sleep before (home) and after 9 time-zone eastward transition (destination area) in 2013 and 2014. In 2013, they did not cope well with jet lag. In 2014, from 4days before their flights, they gradually advanced their sleep-wake schedules, took ramelteon 5.5h before their bedtimes, and were exposed to bright light in the early morning. The results of wrist actigraphy showed that the approach improved the sleep quality in the destination area.