| 递增负荷运动后肌氧含量和血乳酸的恢复研究 |
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| 引用本文： | 沈友青,徐国栋.递增负荷运动后肌氧含量和血乳酸的恢复研究[J].中国体育科技,2011,47(5). |
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| 作者姓名： | 沈友青 徐国栋 |
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| 作者单位： | 1. 武汉体育学院研究生部,湖北 武汉 430079;湖北第二师范学院体育系,湖北 武汉 430205
2. 江汉大学体育学院,湖北 武汉,430056 |
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| 摘 要： | 目的:研究递增负荷运动后肌氧和血乳酸的恢复特点及特征性指标的关联性,探索恢复评价的有效指标与科学化手段.方法:14名赛艇轻量级运动员进行递增负荷运动试验,采用静止休息的方式恢复至安静状态.用近红外光谱术(NIRS)监测运动时及恢复期主动肌氧含量的变化,提取肌氧恢复幅度(H)、半恢复时(TR),计算肌氧半恢复速率(RHbO2).在运动停止后即刻及恢复期测定血乳酸,找出峰值(Blamax)及峰值出现的时间(t)、恢复至30min时的血乳酸浓度(Bla30),计算乳酸清除速率(RBla).结果:肌氧含量与血乳酸的变化与氧化代谢水平和恢复程度相适应.肌氧半恢复速率RHbO2和血乳酸清除速率RBla存在显著的正相关(r=0.791,P＜0.01),回归方程存在显著意义.结论:肌氧和血乳酸的变化在内在机制上存在必然的联系,可以反映机体的恢复水平和氧化代谢能力.将RHbO2取代传统指标RBla应用于代谢能力和恢复评价具有可行性；NIRS为训练监控的科学化发展提供了有效的检测手段.
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| 关 键 词： | 近红外光谱术 恢复 肌氧含量 血乳酸 |
Study on Recovery of Muscle Oxygenation and Blood Lactate after Graded Exercise Test |
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| SHEN You-qing,XU Guo-dong.Study on Recovery of Muscle Oxygenation and Blood Lactate after Graded Exercise Test[J].China Sport Science and Technology,2011,47(5). |
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| Authors: | SHEN You-qing XU Guo-dong |
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| Institution: | SHEN You-qing1,2,XU Guo-dong3 1.Wuhan Sports University,Wuhan 430079,China,2.Department of Physical Education,Hubei University of Education,Wuhan 430205,3.School of Physical Education,Jianghan University,Wuhan 430056,China. |
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| Abstract: | Objective:To explore the changes of metabolism during recovery and acquire effective predictor and scientific detection method.Method:Incremental exercise until exhaustion was performed by 14 lightweight rowers on the rowing ergometer,and passive recovery was taken after exercise.Near infrared spectroscopy(NIRS)was applied to evaluate the changes in muscle oxygenation during incremental exercise and recovery.The parameters of recovery amplitude(H),half recovery time(TR) and half recovery rate(RHbO2) was ext... |
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| Keywords: | near infrared spectroscopy recovery muscle oxygenation blood lactate |
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