Crampton D, Egaña M, Donne B, Warmington S A
Department of Physiology, Trinity College Dublin, Dublin, Ireland.
Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, Victoria, Australia.
Scand J Med Sci Sports. 2014 Aug;24(4):e290-8. doi: 10.1111/sms.12169. Epub 2014 Jan 8.
Sprint (high-intensity) exercise performance is reduced when immediately preceded by cold water immersion (CWI). We aimed to investigate whether this performance effect could be attenuated by combining an active recovery (arm exercise) with hip-level CWI, and whether this attenuation may be related to an effect on core temperature (Tcore ). Participants (n = 8) completed three Wingate tests before (Ex1) and after (Ex2) four different 30-min recovery interventions: CWI at 15 °C (CW15), arm exercise during CWI at 15 °C (CW15+AE), arm exercise during thermoneutral immersion at 34 °C (TW34+AE) and non-immersed arm exercise (AE). After AE and TW34+AE, performance during Ex2 was not different from Ex1; while after CW15+AE and CW15, performance was reduced by 4.9% and 7.6%, respectively. Arm exercise maintained Tcore during recovery in CW15+AE, while it declined to a larger extent upon commencement of Ex2 (-0.9 °C) when compared with CW15 (-0.6 °C). This suggests similar leg muscle cooling during recovery in CW15 and CW15+AE. Without any other significant effects (e.g., on blood lactate), these data suggest that the improvement in sprint performance following an active CWI recovery, over CWI alone, may be related to maintained Tcore and its effect on neurophysiological mechanisms that drive muscle activation, but not by reduced muscle cooling.
在冷水浸泡（CWI）紧接之前进行冲刺（高强度）运动时，运动表现会降低。我们旨在研究通过将主动恢复（手臂运动）与髋部水平的CWI相结合，这种运动表现的影响是否可以减弱，以及这种减弱是否可能与对核心温度（Tcore）的影响有关。参与者（n = 8）在四种不同的30分钟恢复干预措施之前（Ex1）和之后（Ex2）完成了三次温盖特测试：15°C的CWI（CW15）、15°C的CWI期间进行手臂运动（CW15 + AE）、34°C的热中性浸泡期间进行手臂运动（TW34 + AE）和非浸泡手臂运动（AE）。在AE和TW34 + AE之后，Ex2期间的运动表现与Ex1没有差异；而在CW15 + AE和CW15之后，运动表现分别降低了4.9%和7.6%。在CW15 + AE的恢复过程中，手臂运动维持了Tcore，而与CW15（-0.6°C）相比，在Ex2开始时Tcore下降幅度更大（-0.9°C）。这表明在CW15和CW15 + AE的恢复过程中腿部肌肉冷却情况相似。在没有任何其他显著影响（例如对血乳酸的影响）的情况下，这些数据表明，与单独的CWI相比，主动CWI恢复后冲刺表现的改善可能与维持的Tcore及其对驱动肌肉激活的神经生理机制的影响有关，而不是与减少的肌肉冷却有关。
