Roky R, Iraki L, HajKhlifa R, Lakhdar Ghazal N, Hakkou F
Department of Pharmacology, Faculty of Medicine and Pharmacy, Casablanca, Morocco.
Ann Nutr Metab. 2000;44(3):101-7. doi: 10.1159/000012830.
During the month of Ramadan, Moslems abstain from drinking and eating daily between sunrise and sunset. This change of meals schedule is accompanied with changes in sleep habit, which may affect diurnal alertness. This study examined the effect of Ramadan intermittent fasting on the diurnal alertness and oral temperature in 10 healthy young subjects. The cognitive task battery including movement reaction time (MRT), critical flicker fusion (CFF) and visual analogue scale, was administered at 6 different times of the day: 09.00, 11.00, 13.00, 16.00, 20.00 and 23.00 h on the 6th, 15th, and 28th days of Ramadan. The baseline day was scheduled one week before Ramadan, and the recovery day 18 days after this month. Oral temperature was measured prior to each test session and at 00.00 h. During Ramadan oral temperature decreased at 09.00, 11.00, 13.00, 16.00 and 20.00 h and increased at 23.00 and 00.00 h. Subjective alertness decreased at 09.00 and 16.00 h and increased at 23.00 h. Mood decreased at 16.00 h. MRT was increased at the beginning of Ramadan (R6) and CFF was not changed. These results showed that daytime oral temperature, subjective alertness and mood were decreased during Ramadan intermittent fasting.
在斋月期间，穆斯林每天从日出到日落禁食禁饮。这种用餐时间安排的改变伴随着睡眠习惯的变化，这可能会影响日间警觉性。本研究调查了斋月间歇性禁食对10名健康年轻受试者日间警觉性和口腔温度的影响。在斋月的第6天、第15天和第28天，于一天中的6个不同时间（09:00、11:00、13:00、16:00、20:00和23:00）进行包括运动反应时间（MRT）、临界闪烁融合频率（CFF）和视觉模拟量表在内的认知任务测试。基线日安排在斋月前一周，恢复日在本月之后的第18天。在每次测试前以及00:00测量口腔温度。在斋月期间，口腔温度在09:00、11:00、13:00、16:00和20:00时下降，在23:00和00:00时上升。主观警觉性在09:00和16:00时下降，在23:00时上升。情绪在16:00时下降。斋月开始时（R6）MRT增加，CFF未改变。这些结果表明，斋月间歇性禁食期间白天的口腔温度、主观警觉性和情绪均下降。
