摘要
目的:检测肥胖对心肌梗死后(PMI)患者心脏康复早期有氧工作能力的影响。方法:116例男性PMI患者根据其身体质量指数(BMI)高于或低于25和服用或未服用β-阻断剂被分为4组,然后进行递增负荷运动实验,其间记录每级负荷时的摄氧量(VO2)、心率(HR)、血压和自我用力感觉(RPE),并持续监测12导联心电图(ECG)。结果:BMI<25的两组患者都能坚持较长时间的运动(P<0.05),有较高的峰值摄氧量(P<0.05)和较低的有氧能力的损伤(P<0.01)。当RPE到达13时,其他组别的VO2分别是BMI<25且服用β-阻断剂组的90%(未服用β-阻断剂,BMI<25),75%(服用β-阻断剂,BMI>25)和70%(未服用β-阻断剂,BMI>25)。结论:肥胖会影响患者运动中的功能和代谢能力,但服用β-阻断剂对此可有所补偿。BMI<25对于减轻氧能力损伤将会有明显的益处。
Objective:To examine the influence of adiposity on the aerobic capacity of post myocardial infarction (PMI) patients during early stage of cardiac rehabilitation.Method:One hundred and sixteen male recent PMI patients were divided into four groups according to their body mass index (BMI) above or below 25,and with or without taking β-blocker.Then,a graded exercise test was performed;oxygen uptake (VO2),heart rate (HR),blood pressure and ratings of perceived exertion (RPE) were recorded,and 12 lead electrocardiogram (ECG) was monitored continuously.Result:Both groups with BMI25 could persist longer exercise time (P0.05),had higher peak VO2 (P0.05),and lower functional aerobic impairment (P0.01).When RPE was at 13,relatively to the taking β-blocker and BMI25 group,the other groups had peak VO2 of 90% (no、β-blocker,BMI25),75% (taking β-blocker,BMI25) and 70% (no β-blocker,BMI25) respectively.Conclusion:Adiposity can compromise patients' function and metabolic capacity during exercise,but in patients taking β-blocker there may be some compensation.One with BMI 25 will have particular benefits for alleviating functional aerobic impairment.
出处
《中国康复医学杂志》
CAS
CSCD
北大核心
2011年第9期814-817,共4页
Chinese Journal of Rehabilitation Medicine
基金
教育部留学回国人员科研启动基金(2004527)
关键词
肥胖
身体质量指数
心肌梗死
Β-阻断剂
运动心脏康复
adiposity
body mass index
myocardial infarction
beta blocker
exercise-based cardiac rehabilitation