Pariyavuth Pariya, Lee Jason Kai Wei, Tan Pearl Min Sze, Vichaiwong Kanokwan, Mawhinney Christopher, Pinthong Metta
College of Sports Science and Technology, Mahidol University, Nakhon Pathom, Thailand.
Faculty of Physical Education, Srinakharinwirot University, Nakhon Nayok, Thailand.
J Exerc Sci Fit. 2023 Jul;21(3):286-294. doi: 10.1016/j.jesf.2023.05.003. Epub 2023 May 25.
BACKGROUND/OBJECTIVES: The influence of post-exercise cooling on recovery has gained much attention in the empirical literature, however, data is limited in regards to optimizing recovery from taekwondo performance when combat is repeated in quick succession within the same day. The aim of this study was therefore to compare the effects of external and internal cooling after simulated taekwondo combat upon intestinal temperature (T), psychomotor skills (reaction time, response time, movement time), and neuromuscular function (peak torque, average power, time to reach peak torque).
Using a randomized counterbalanced crossover design, 10 well-trained male taekwondo athletes completed four recovery methods on separate occasions: passive recovery (CON), a 5-minute thermoneutral water immersion (35°C) (TWI), a 5-min cold water immersion (15°C) (CWI), and ice slurry ingestion (-1°C) (ICE; consumed every 5 min for 30 min). Heart rate (HR), blood lactate (Blac) concentrations, and T were determined at rest, immediately after combat, and at selected intervals during a 90-min recovery period. Neuromuscular functional (measured with isokinetic dynamometer) and psychomotor indices were assessed at baseline and after the recovery period.
ICE led to a significantly lower T at 30 min (P<0.01) and 45 min (P<0.01) after simulated combat; 15-30 min after cessation of ingesting ice slurry, compared with the CON and TWI conditions, respectively. However, there were no differences in T across time points between the other conditions (P>0.05). Psychomotor skills and neuromuscular function indices returned to baseline values after the 90 min recovery period (P>0.05) with no differences observed between conditions (P>0.05).
The present findings suggest that internal (ICE) and external (CWI) recovery methods appear to have little impact on physiological and functional indices over the time course required to influence repeated taekwondo combat performance.
背景/目的：运动后冷却对恢复的影响在实证文献中已备受关注，然而，关于在同一天内快速连续进行跆拳道比赛后如何优化恢复的数据有限。因此，本研究的目的是比较模拟跆拳道比赛后外部冷却和内部冷却对肠道温度（T）、心理运动技能（反应时间、响应时间、运动时间）以及神经肌肉功能（峰值扭矩、平均功率、达到峰值扭矩的时间）的影响。
采用随机平衡交叉设计，10名训练有素的男性跆拳道运动员在不同时间完成四种恢复方法：被动恢复（CON）、5分钟中性水温浸浴（35°C）（TWI）、5分钟冷水浸浴（15°C）（CWI）以及摄入冰浆（-1°C）（ICE；每5分钟摄入一次，共30分钟）。在休息时、比赛结束后即刻以及90分钟恢复期间的选定时间点测定心率（HR）、血乳酸（Blac）浓度和T。在基线和恢复期结束后评估神经肌肉功能（用等速测力计测量）和心理运动指标。
模拟比赛后30分钟（P<0.01）和45分钟（P<0.01）时，ICE导致T显著降低；分别在停止摄入冰浆后15 - 30分钟，与CON和TWI条件相比。然而，其他条件下各时间点的T无差异（P>0.05）。心理运动技能和神经肌肉功能指标在90分钟恢复期后恢复到基线值（P>0.05），各条件之间未观察到差异（P>0.05）。
本研究结果表明，在影响重复跆拳道比赛表现所需的时间过程中，内部（ICE）和外部（CWI）恢复方法似乎对生理和功能指标影响不大。
