| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
In the present study, we examined whether timed physical exercise accelerated phase shift of circadian melatonin rhythms under bright light conditions. Fifteen male subjects spent 14 days in an isolation unit without knowing the time of day. On the last day of advanced sleep schedule, the mean peak phase of plasma melatonin rhythm in the exercise group significantly phase advanced on the first day of free-run, whereas it did not in the control group. In conclusion, timed physical exercise accelerates re-entrainment of plasma melatonin rhythm to an 8-h phase advance of sleep schedule.
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