| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
To clarify the prevalence of poor sleep quality and its associated factors among elite Japanese athletes, the questionnaire study was conducted. Twenty-eight percent of the athletes were classified as poor sleepers. Their poor sleep quality was associated with five factors.
To examine a simple evaluating system of the sleep under hypoxia, we compared among the data from polysomnography, actigraphy, sheet-sensor, and peripheral-artery-tonometry. Though the convenience that peripheral-artery-tonometry can pick up respiratory disturbances under hypoxia, sleep/wake identification from the actigraph and the sheet-sensor were similar from the polysomnograph.
To evaluate the effects of pre-flight circadian phase-shifting approach on sleep after eastward transition, two athletes gradually advanced their sleep–wake schedules, took ramelteon 5.5 h before their bedtimes, and were exposed to bright light in the early morning. The approach improved their sleep in the destination areas.
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