Cherif Anissa, Meeusen Romain, Ryu Joong, Taylor Lee, Farooq Abdulaziz, Kammoun Karim, Fenneni Mohamed Amine, Aziz Abdul Rashid, Roelands Bart, Chamari Karim
Athlete Health and Performance Research Center, Aspetar - Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Human Physiology Research Group, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium.
Biol Sport. 2018 Sep;35(3):237-244. doi: 10.5114/biolsport.2018.77824. Epub 2018 Aug 27.
To determine the effect of carbohydrate mouth rinsing (CHO-MR) on physical and cognitive performance during repeated-sprints (RS) after 3 days of intermittent fasting (abstaining from food and fluid 14 h per day). In a randomized and counter-balanced manner 15 active healthy males in a fasted state performed a RS-protocol [RSP; 2 sets (SET1 and SET2) of 5×5 s maximal sprints, with each sprint interspersed with 25 s rest and 3 min of recovery between SET1 and SET2] on an instrumented non-motorized treadmill with embedded force sensors under three conditions: i) Control (CON; no-MR), ii) Placebo-MR (PLA-MR; 0% maltodextrin) and iii) CHO-MR (10% maltodextrin). Participants rinsed their mouth with either 10 mL of PLA-MR or CHO-MR solution for 5 s before each sprint. Sprint kinetics were measured for each sprint and reaction time (RTI) tasks (simple and complex) were assessed pre-, during- and post-RSP. There was no statistical main effect of CHO-MR on mean power, mean speed, and vertical stiffness during the sprints between the PLA-MR and CON condition. Additionally, no statistical main effect for CHO-MR on accuracy, movement time and reaction time during the RTI tasks was seen. CHO-MR did not affect physical (RSP) or cognitive (RTI) performance in participants who had observed 3 days of intermittent fasting (abstaining from food and fluid 14 h per day).
为了确定在间歇性禁食（每天禁食14小时，不摄入食物和液体）3天后，碳水化合物漱口（CHO-MR）对重复冲刺跑（RS）期间身体和认知表现的影响。15名处于禁食状态的健康男性以随机和平衡的方式，在一台带有嵌入式力传感器的非电动仪器化跑步机上，于三种条件下进行了RS方案[RSP；2组（SET1和SET2），每组5次×5秒的最大冲刺跑，每次冲刺跑之间穿插25秒休息，SET1和SET2之间有3分钟恢复时间]：i）对照组（CON；不漱口），ii）安慰剂漱口组（PLA-MR；0%麦芽糊精）和iii）CHO-MR组（10%麦芽糊精）。在每次冲刺跑前，参与者用10毫升PLA-MR或CHO-MR溶液漱口5秒。测量每次冲刺跑的动力学参数，并在RSP之前、期间和之后评估反应时间（RTI）任务（简单和复杂）。在PLA-MR组和CON组之间，CHO-MR对冲刺跑期间的平均功率、平均速度和垂直刚度没有统计学上的主效应。此外，在RTI任务期间，未观察到CHO-MR对准确性、运动时间和反应时间有统计学上的主效应。对于进行了3天间歇性禁食（每天禁食14小时，不摄入食物和液体）的参与者，CHO-MR不影响其身体（RSP）或认知（RTI）表现。
