■间歇性禁食(IF)代表类似于热量限制的饮食干预,以食品消费的战略局限性为特征。在综合框架的各种做法中,斋月IF(RIF),伊斯兰教的宗教仪式,要求健康的成年穆斯林在白天不吃食物和饮料。在体育运动中,研究人员广泛研究了IF对健康的影响,包括睡眠和身体表现,但其在RIF期间对认知功能的影响仍未得到充分研究。因此,本研究旨在评估RIF对年轻女运动员精神运动和认知表现的影响.
■要实现此目的,一群23名女手球运动员,17.2±0.5岁,参加了一系列的六次测试会议:一次是在斋月(R0)之前进行的,和其他人在第一个(R1),秒(R2),第三(R3),和斋月的第四(R4)周,随后是斋月(R5)后一周的会议。每个会话都涉及使用简单反应时间测试(SRT)的评估,选择反应时间测试(CRT),警戒测试(VT),和心理旋转测试(MRT)。此外,饮食摄入量,身体成分,和匹兹堡睡眠质量指数(PSQI)评分在这些时期进行评估。
■获得的数据表明SRT下降,CRT,VT,与R0相比,R1期间的MRT性能(所有p<.001)。在R2、R3、R4和R5中也观察到这种减少。值得注意的是,在斋月(R4)的第四周,这些认知和精神运动参数显著低于前几周(R1,R2,R3;所有p<.001)。此外,PSQI总分逐渐下降,睡眠质量,在整个斋月期间观察到睡眠持续时间,在R4期间达到最低水平。这些发现表明,RIF对年轻女运动员的神经肌肉和认知能力以及睡眠质量有显著的不利影响。该研究还强调了斋月四周认知功能的波动模式,在禁食的最后一周观察到的最明显的下降,说明了对具有较大样本量的两种性别的正常个体进行类似研究的重要性。
UNASSIGNED: Intermittent fasting (IF) represents a dietary intervention similar to caloric restriction, characterized by the strategic limitation of food consumption. Among the diverse array of practices for IF, Ramadan IF (RIF), a religious observance in Islam, mandates that healthy adult Muslims abstain from both food and drinks during daylight hours. In sports, researchers have extensively studied IF effects on health, including sleep and physical performance, but its impact on cognitive functions during RIF remains understudied. Therefore, this study was conducted to evaluate the influence of RIF on psychomotor and cognitive performance among young female athletes.
UNASSIGNED: To achieve this purpose, a cohort of 23 female handball players, aged 17.2 ± 0.5 years, participated in a series of six testing sessions: one conducted prior to Ramadan (R0), and others during the first (R1), second (R2), third (R3), and fourth (R4) weeks of Ramadan, followed by a session in the week after Ramadan (R5). Each session involved assessments using a Simple Reaction Time Test (SRT), Choice Reaction Time Test (CRT), Vigilance Test (VT), and Mental Rotation Test (MRT). Additionally, dietary intake, body composition, and Pittsburgh Sleep Quality Index (PSQI) scores were evaluated during these periods.
UNASSIGNED: The obtained data illustrated that there was a decrease in SRT, CRT, VT, and MRT performances during R1 in comparison to R0 (all p < .001). This reduction was also observed in R2, R3, R4, and R5. Notably, during the fourth week of Ramadan (R4), these cognitive and psychomotor parameters were significantly lower than during the earlier weeks (R1, R2, R3; all p < .001). Furthermore, a gradual decrease in total PSQI scores, sleep quality, and sleep duration was observed throughout the Ramadan period, reaching the lowest levels during R4. These findings illustrate that RIF has a significantly detrimental impact on neuromuscular and cognitive abilities as well as sleep quality in young female athletes. The study also highlights a fluctuating pattern in cognitive function across the four weeks of Ramadan, with the most pronounced decline observed during the final week of fasting illustrating the importance of conducting similar studies on normal individuals from both genders with larger sample size.