Wozniak Alina, Wozniak Bartosz, Drewa Gerard, Mila-Kierzenkowska Celestyna
Collegium Medicum, Nicolaus Copernicus University, Department and Clinic of Neurosurgery and Neurotraumatology, Karłowicza 24, 85-092, Bydgoszcz, Poland.
Eur J Appl Physiol. 2007 Nov;101(5):533-7. doi: 10.1007/s00421-007-0524-6. Epub 2007 Aug 1.
The effect of whole-body cryostimulation prior to kayak training on the prooxidant-antioxidant balance was evaluated and compared to the effect of a single cryostimulation treatment in untrained men. The kayakers underwent a ten-day training cycle with pre-training daily whole-body cryostimulation for three min (temperature: -120 to -140 degrees C) and training without cryostimulation as a control. Blood samples were obtained before and after the sixth and the tenth day of training and from the untrained men before and 20 min after cryostimulation. In untrained men cryostimulation induced an increase in the activity of superoxide dismutase (SOD) by 36% (P<0.001) and glutathione peroxidase (GPx) by 68% (P<0.01) in the erythrocytes and an increase in the conjugated dienes (CD) in plasma by 36% (P<0.05) and in the erythrocytes by 71% (P<0.001). In the kayakers comparing both types of training after the sixth day, the level of CD in plasma was 46 (P<0.001) and 40% (P<0.01) lower in erythrocytes, and the concentration of thiobarbituric acid-reactive substances in plasma was 24% (P<0.05) lower with pre-training cryostimulation. After the sixth day of training with cryostimulation, SOD activity was also 47% (P<0.001) lower, while GPx activity after the tenth day was reduced by more than 50% (P<0.01) as compared to control training. Whole-body cryostimulation per se stimulates the generation of reactive oxygen species. Yet, the oxidative stress induced by kayak training was reduced by prior exposure to extremely low temperatures.
评估了皮划艇训练前全身冷刺激对氧化还原平衡的影响，并与未受过训练的男性单次冷刺激治疗的效果进行了比较。皮划艇运动员进行了为期十天的训练周期，训练前每天进行三分钟的全身冷刺激（温度：-120至-140摄氏度），并以无冷刺激训练作为对照。在训练的第六天和第十天前后以及未受过训练的男性冷刺激前和冷刺激后20分钟采集血样。在未受过训练的男性中，冷刺激使红细胞中超氧化物歧化酶（SOD）活性增加36%（P<0.001），谷胱甘肽过氧化物酶（GPx）活性增加68%（P<0.01），血浆中共轭二烯（CD）增加36%（P<0.05），红细胞中增加71%（P<0.001）。在皮划艇运动员中，比较第六天后的两种训练类型，血浆中CD水平在红细胞中分别降低46%（P<0.001）和40%（P<0.01），训练前冷刺激使血浆中硫代巴比妥酸反应性物质浓度降低24%（P<0.05）。在冷刺激训练的第六天后，SOD活性也降低了47%（P<0.001），而与对照训练相比，第十天后GPx活性降低了50%以上（P<0.01）。全身冷刺激本身会刺激活性氧的产生。然而，皮划艇训练引起的氧化应激通过事先暴露于极低温度而降低。
