Cherif Anissa, Meeusen Romain, Farooq Abdulaziz, Briki Walid, Fenneni Mohamed Amine, Chamari Karim, Roelands Bart
a Athlete Health and Performance Research Center, Aspetar-Orthopaedic and Sports Medicine Hospital , Doha , Qatar.
b Human Physiology Research Group, Faculty of Physical Education and Physiotherapy Free University of Brussel , Brussels , Belgium.
J Am Coll Nutr. 2017 Mar-Apr;36(3):210-217. doi: 10.1080/07315724.2016.1256795. Epub 2017 Mar 20.
The aim of this study was to assess the effects of 3-day Islamic intermittent fasting (3d-IF) on cognitive performance and serum levels of neurotrophic factors (brain-derived neurotrophic factor [BDNF] and vascular endothelial growth factor [VEGF]) before and after repeated sprints.
Twenty-one physically active male Muslims (29.8 ± 5.9 years, exercising 4 ± 1.5 times/week) were randomly assigned to one of 2 experimental sessions: the control or nonfasting session (CS) or the fasting session (FS). These 2 sessions occurred 7 days apart in a counterbalanced crossover design. In both conditions, the test was performed at the same time of day, approximately 1 hour before sunset. In the FS, the test occurred on the third day of the 3d-IF and involved the participants' performance of the following: (a) two series of 5 maximal 5-second sprints and (b) 2 cognitive tasks: One Touch Stockings (OTS) and reaction time (simple and complex RTI).
In both conditions, the participants' reaction times during the RTI test were similar at the pre- and mid-exercise points, but postexercise, simple and complex reaction times were higher in FS compared to CS (p = 0.045, effect size [ES] = 0.21 and p = 0.006, ES = 0.41, respectively). However, OTS performance and serum levels of neurotrophic factors were not influenced by the 3d-IF.
Simple and complex reaction times during the RTI test were negatively affected by the 3d-IF after 2 bouts of intensive repeated sprints.
本研究旨在评估为期3天的伊斯兰间歇性禁食（3d-IF）对重复冲刺前后认知表现及神经营养因子（脑源性神经营养因子[BDNF]和血管内皮生长因子[VEGF]）血清水平的影响。
21名身体活跃的男性穆斯林（29.8±5.9岁，每周锻炼4±1.5次）被随机分配到2个实验环节之一：对照组或非禁食组（CS）或禁食组（FS）。这2个环节间隔7天，采用平衡交叉设计。在两种情况下，测试均在一天中的同一时间进行，大约在日落前1小时。在FS组中，测试在3d-IF的第三天进行，参与者要完成以下任务：（a）两组，每组5次持续5秒的最大冲刺；（b）2项认知任务：单触式长袜任务（OTS）和反应时间（简单和复杂反应时）。
在两种情况下，参与者在反应时测试中的反应时间在运动前和运动中相似，但运动后，FS组的简单和复杂反应时间均高于CS组（p = 0.045，效应量[ES] = 0.21；p = 0.006，ES = 0.41）。然而，OTS表现和神经营养因子的血清水平不受3d-IF的影响。
在进行2组高强度重复冲刺后，3d-IF对反应时测试中的简单和复杂反应时间有负面影响。
