Integrative Exercise Physiology Laboratory, Department of Physical Education, Jeonbuk National University, 567 Baekje-daero, Jeollabuk-do, Jeonju-si 54896, Korea.
Int J Environ Res Public Health. 2021 May 10;18(9):5026. doi: 10.3390/ijerph18095026.
Local cooling, or cryotherapy, has received attention due to its effects on athlete recovery before or after strenuous exercise. This study seeks to verify the effectiveness of 3 min applications of acute local cooling to the lower extremities between sets of a repeated vertical jump exercise.
Using a randomized crossover design, twelve subjects performed a total of 3 sets of 30 consecutive maximal vertical jumps and were allowed a recovery period of 5 min after each set. In the recovery period, subjects rested with or without a cooling suit worn on their lower legs. Changes in heart rate, blood lactate, and rate of perceived exertion were assessed.
Vertical jump performance steadily decreased during 30 consecutive vertical jumps in all 3 sets; however, no differences in jump performance were observed among the groups. Heart rate, blood lactate, and rate of perceived exertion tended to be lower in the cooling recovery group relative to the control group.
The current study provides evidence that acute local cooling recovery after a vertical jump exercise may not add any performance benefits but may provide a psychological benefit. The effectiveness of acute local cooling in other functional performances should be addressed in further research.
局部冷却，即冷冻疗法，因其在剧烈运动前后对运动员恢复的影响而受到关注。本研究旨在验证在重复垂直跳跃运动的组间应用 3 分钟急性局部冷却对下肢的有效性。
采用随机交叉设计，12 名受试者共进行 3 组 30 次连续最大垂直跳跃，每组后休息 5 分钟。在恢复期，受试者在小腿上穿着或不穿着冷却服休息。评估心率、血乳酸和感知用力率的变化。
在所有 3 组的 30 次连续垂直跳跃中，垂直跳跃表现均逐渐下降；然而，各组之间的跳跃表现无差异。与对照组相比，冷却恢复期的心率、血乳酸和感知用力率趋于较低。
本研究提供的证据表明，垂直跳跃运动后进行急性局部冷却恢复可能不会带来任何性能优势，但可能会带来心理上的好处。在进一步的研究中，应探讨急性局部冷却在其他功能表现中的有效性。
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