30分钟全身预冷对女子五人制足球运动员无氧性能指标的影响

A. Monazzami, Hadis Maleki Sadeghi, A. Hematfar
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摘要

背景:预冷技术对耐力训练的有益作用已被证明,尽管很少有研究表明预冷技术对高强度运动的影响。目的:本研究旨在确定30分钟全身预冷对女子五人制足球运动员无氧性能指标的影响。方法:12名女性受试者(年龄22.5±2.24岁,身高159±0.06,体重55.22±12.73)参与本交叉设计研究,随机分为两组,每组间隔3天,分别采用冰衣预冷30分钟和对照组(无预冷)进行测试。随后立即进行RAST厌氧功率测试。采用Buerer ft -70数字体温计、polar-FT60心率监测、微生命血压监测、hp-cosmos乳酸计、ELISA技术分别测定核心体温、心率、血压、血乳酸、乳酸脱氢酶。t独立和相关检验也用于比较组间和组内的变化。结果:预冷组核心体温、心率、最大功率输出、疲劳指数均显著高于对照组(P < 0.05),血乳酸水平、平均、最小功率输出、血压各组间差异无统计学意义(P < 0.05)。结论:总之,结果表明,30分钟的全身预冷可以通过阻塞皮肤血管来刺激血液流向活动肌肉,从而改善反复剧烈运动的情况。
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The Effects of 30-minute Whole-Body Pre-Cooling on Anaerobic Performance Indices in Women Futsal Players
Background: The beneficial effects of pre-cooling techniques on endurance training have been proved, although few studies are conducted on the effects of pre-cooling techniques on high-intensity exercises Objectives: The current study aimed to determine the effects of 30-minute whole body pre-cooling on anaerobic performance indices in women futsal players. Methods: Twelve female subjects (age 22.5 ± 2.24, hight159 ± 0.06, weight 55.22 ± 12.73) participated in this cross-design study and were tested randomly after either 30- minute of pre-cooling using ice jackets or under control conditions (no pre-cooling) in two separate sessions with three days interval between each session. This was immediately followed by the RAST anaerobic power test. Buerer FT-70digital thermometer, polar-FT60 heart rate monitoring, micro lifeblood pressure monitoring, hp-cosmos lactometer, and ELISA technique were used to measure core body temperature, heart rate, blood pressure, blood lactate, and Lactate dehydrogenase, respectively. T-independent and dependent tests were also applied to compare changes both between and within groups. Results: Data on core temperature, heart rate, maximum power output, and fatigue index after pre-cooling were significantly higher in the pre-cooling group than the control group (P < 0.05), but no significant difference was observed between the groups concerning the blood lactate levels, mean and minimum power output, and blood pressure (P < 0.05). Conclusions: In conclusion, the results suggest that 30-minute of whole-body pre-cooling improves repeated bouts of intensive activity through the occlusion of skin vessels to stimulate the blood flow to the active muscles.
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