冠心病患者康复中适宜运动强度的相关研究  

Optimal Exercise Intensity for Coronary Heart Disease Patients during Rehabilitation

作　　者：金川[1] 刘洵[2] 

机构地区：[1]天津工业大学体育工作部,天津300387 [2]天津体育学院健康与运动科学系,天津300381

出　　处：《天津体育学院学报》2015年第6期544-547,552,共5页Journal of Tianjin University of Sport

摘　　要：目的：利用心率指标为服用β-阻断剂和未服用β-阻断剂冠心病患者提供安全有效的康复运动强度。方法：35名服用β-阻断剂和40名未服用β-阻断剂的男性冠心病患者在活动跑台上进行递增负荷运动试验,其间记录每级负荷时的摄氧量、心率、血乳酸和自我用力感觉,并持续监测12导联心电图。利用Pearson线形回归建立峰值心率的预测公式,据此提供不同年龄服用β-阻断剂和未服用β-阻断剂冠心病患者的适宜运动强度。结果：（1）服用β-阻断剂和未服用β-阻断剂冠心病患者的峰值心率（117.9次/min和138.1次/min）分别只达到“220-年龄”这一方程预测的最大心率的75%和88%;（2）服用β-阻断剂和未服用β-阻断剂冠心病患者在其90%峰值心率时出现了心肌缺血和无氧代谢加强的征兆;（3）服用β-阻断剂和未服用β-阻断剂冠心病患者的峰值心率预测公式分别为161.2-0.74年龄（r=0.78,P〈0.01）和194.1-0.88年龄（r=0.76,P〈0.01）;（4）本研究为不同年龄的服用β-阻断剂和未服用β-阻断剂冠心病患者提供了适宜的上限运动强度和下限运动强度。结论：为了能达到训练效果最大化,损伤风险最小化,服用β-阻断剂和未服用β-阻断剂冠心病患者的适宜运动强度应在其峰值心率的70%~85%之间。Objective ： To provide safe and effective exercise intensities applying heart rate variables for coronary heart disease patients both with and without β- blockade therapy. Method ： Seventy five male coronary heart disease patients （ 35 with and 40 without β- blockade ） performed a graded exercise test on a treadmill during which time oxygen uptake, heart rate, blood lactate and ratings of perceived exertion were recorded, and a 12 lead electrocardiogram was monitored continuously. The predicting formulae for peak heart rate were established through Pearson regression analysis, then optimal exercise intensities for the patients both with and without β- blockade therapy were provided accordingly. Results ： 1. The patients with and without β- blockade showed peak heart rate of 117.9 beats, min-1 and 138.1 beats, min-1 respectively, and these values reached the maximum heart rate derived from ＂220- age＂ of 75% and 88% only. 2. The coronary heart disease patients showed signs of myocardial ischaemia and anaerobic metabolism increasing at about 90% of their peak heart rate. 3. Predicting formulae of peak heart rate for the patients with and without β- blockade therapy were 161.2-0.74 age （r=0.78, P〈 0.01 ）and 194.1-0.88 age （r=0.76, P〈 0.01 ）respectively. 4. The upper and lower limits of exercise intensities for the patients with different ages including those with and without beta blockade therapy were depicted in the study. Conclusions ： For the purpose of maximizing the training effects and yet minimizing the injury risk, the optimal exercise intensities for coronary heart disease patients both with and without β- blockade therapy should be regulated within their 70%-85% peak heart rate areas.

关 键 词：冠心病患者 峰值心率 适宜运动强度 Β-阻断剂 

分 类 号：G804.5[文化科学—运动人体科学]