| 冠心病人康复训练后有氧工作能力和心肌供氧的变化 |
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| 引用本文： | 刘洵,张薇,杨晓龙,原晓晶,杨风英,Brodie DA.冠心病人康复训练后有氧工作能力和心肌供氧的变化[J].体育科学,2007,27(6):35-38. |
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| 作者姓名： | 刘洵 张薇 杨晓龙 原晓晶 杨风英 Brodie DA |
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| 作者单位： | 1. 天津体育学院,运动人体科学系,天津,300381
2. 白金汉郡奇尔敦大学学院,英国,白金汉郡 |
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| 摘 要： | 目的：探讨康复训练后冠心病人进行定量负荷运动时有氧工作能力和心肌供氧的变化，以此为康复效果的评估提供依据。方法：25名男性冠心病人参加了12周有氧多样化运动康复训练，训练前、后对他们在递增负荷运动中的生理和临床指标进行了测定。结果：1）反映冠脉血流和心肌耗氧量的指标RPP，康复训练前在跑台的V级负荷时已超过200，康复训练后增加幅度则有显著下降（P〈0．01）；2）康复训练前受试者的血乳酸浓度（BL）在Ⅳ级运动负荷之后出现了突增（达到4．6mmol／L），而康复训练后他们运动中的BL增加平缓，始终保持较低水平；3）康复训练前在V级运动负荷时受试者的ST下降达到-0．9mm水平，这已接近心肌缺血的阈值，训练后心肌供血出现了明显的改善。结论：康复训练前冠心病人运动中反映运动系统缺氧的BL突增领先于心肌缺血阈值的到达；与康复训练前相比，康复训练后冠心病人在进行相同负荷运动时显示出有氧工作能力有所增强，心肌供氧状况有所改善。
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| 关 键 词： | 冠心病 运动康复 心率-血压乘积 耗氧量 乳酸 ST段水平 |
| 文章编号： | 1000-677X（2007）06-0035-04 |
| 修稿时间： | 2007-03-192007-04-28 |
Change of Aerobic Working Capacity and Myocardial Oxygen Supply of Coronary Heart Disease Patients after Cardiac Rehabilitation |
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| LIU Xun,ZHANG Wei,YANG Xiao-long,YUAN Xiao-jing,YANG Feng-ying,Brodie DA.Change of Aerobic Working Capacity and Myocardial Oxygen Supply of Coronary Heart Disease Patients after Cardiac Rehabilitation[J].China Sport Science,2007,27(6):35-38. |
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| Authors: | LIU Xun ZHANG Wei YANG Xiao-long YUAN Xiao-jing YANG Feng-ying Brodie DA |
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| Abstract: | The purpose of this study was to examine the change of aerobic working capacity and myocardial oxygen supply of coronary heart disease patients with exercise at given work loads after cardiac rehabilitation.This will provide a basis in terms of evaluating effect of rehabilitation.Twenty-five male recent coronary heart disease patients undertook a 12 week exercise-based cardiac rehabilitation program.Physiological and clinical variables of the patients were measured and analyzed both pre and post the program through a graded exercise test.The result showed that 1) RPP associated with coronary blood flow and myocardial oxygen consumption exceeded 200 at exercise stage V pre program,whereas its increasing extent dropped significantly post program(P<0.01);2) Blood lactate concentration increased sharply after exercise stage IV (up to 4.6 mmol/L) pre program,but it showed a gentle increasing tendency post program;3) ST segment level depressed to -0.9 mm (close to ischemic threshold) at exercise stage V pre program.After training,myocardial blood supply improved greatly.It concluded that a sharp increase of blood lactate concentration happened prior to myocardial ischemic threshold arrival pre program.After training,the patients presented improvements both in aerobic working capacity and in myocardial oxygen supply when they exercise at the identical stages with pre program. |
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| Keywords: | coronary heart disease patients exercise-based rehabilitation rate-pressure product oxygen uptake blood lactate concentration ST segment level |
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