背景:冷疗对于减轻大强度训练后的延迟性肌肉酸痛有着较为显著的效果.目的:考察不同的冷疗方案对长距离竞走运动员2个小周期训练中白细胞介素6和前列腺素2水平的影响,探讨冷疗缓解延迟性肌肉酸痛在不同项目中的应用方法.方法:辽宁省竞走队16名男子竞走运动员随机分为冷疗组和冷热交替组,在15 d的训练后用不同的方法进行冷疗,每日训练后进行一次冷疗,其中冷疗组进行不间断的10 min冷疗,冷热交替组以2.5 min冷水和2.5 min热水循环4次,合计10 min.选取6个时点测试血清中的白细胞介素6和前列腺素2水平,统计分析两种疗法的差异.结果与结论:①两种冷疗方案中,单纯冷疗降低白细胞介素6水平的作用更加显著;②与冷热交替疗法相比,单纯冷疗能够更加显著的降低前列腺素2水平,在赛事较为密集的赛季,能够更加有效的缓解延迟性肌肉酸痛;③结果表明,在大强度的训练和高强度密集的赛事中,单纯冷疗是更加有效的缓解延迟性肌肉酸痛的方式.%BACKGROUND:Cryotherapy plays a positive role in the treatment of delayed-onset muscle soreness caused by high intense exercise. OBJECTIVE: To investigate the effects of different crypotherapy programs on the levels of interleukin-6 and prostaglandin 2 in long distance race-walkers after 15-day training, and to determine a rational treatment program for delayed-onset muscle soreness. METHODS:Sixteen male race-walkers in Liaoning Province were randomly divided into cryotherapy and cryo/heat therapy groups, and received 10-minute cryotherapy and 2.5-minute cryo/heat therapy (2.5-mintue cryotherapy and 2.5-minute heat therapy alternately for 10 minutes), respectively, after 15-day training. The serum levels of interleukin-6 and prostaglandin 2 were detected at six different time points to compare the efficacy between two methods. RESULTS AND CONCLUSION: Compared with the cryo/heat therapy group, the serum levels of interleukin-6 and prostaglandin 2 in the cryotherapy group were significantly decreased. That is to say, cryotherapy is more available for alleviating delayed-onset muscle soreness after intensive eccentric training or in intensive seasons.
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