目的 探讨冠心病康复不同有氧运动强度设定方法的一致性,为基层康复机构的冠心病患者进行有氧运动提供安全有效的强度设定方法。方法 2016年7月至2017年7月选取本院低、中危冠心病患者25例,采集安静心率和年龄等基本信息,进行心肺运动试验获取无氧阈和峰值摄氧量。休息1 d后,进行6分钟步行试验。分别使用无氧阈法、峰值摄氧量法、心率储备法、年龄预计法和安静心率+20法计算靶心率,比较不同方法确定靶心率的相关性与一致性。结果 年龄预计法确定的靶心率与无氧阈法无显著性相关(r=-0.131, P>0.05),两者存在非常高度显著性差异(P<0.001);安静心率+20法所推算的靶心率与无氧阈法无显著性相关(r=0.372, P>0.05);峰值摄氧量法确定的靶心率与无氧阈法之间存在非常显著性相关(r=0.872, P<0.01),两者无显著性差异(P>0.05),Bland-Altman检验显示两种方法具有一致性;心率储备法确定的靶心率与无氧阈法之间存在非常高度显著性相关(r=0.836, P<0.001),两者无显著性差异(P>0.05),Bland-Altman检验显示两种方法具有一致性。结论 年龄预计法、安静心率+20法确定的有氧运动靶强度与无氧阈法不具有相关性和一致性;心率储备法、峰值摄氧量法确定的有氧运动靶强度与无氧阈法相关,具有一致性。
Objective To explore the consistency of different intensity setting methods of aerobic exercise in order to provide the safe and effective strength setting method for patients with coronary heart disease (CHD).Methods From July, 2016 to July, 2017, CHD patients in our hospital were recruited. The basic data were collected. The patients received cardiopulmonary exercise test firstly to obtain anaerobic threshold, peak oxygen intake and other indicators. They underwent Six-minute Walk Test after a day off. The target heart rate was calculated using anaerobic threshold method (AT), peak oxygen uptake index method (PI), heart rate reserve method (HRR), age estimates method (AE) and quiet heart rate plus 20 method (HR20), respectively. The correlation and consistency of different methods were analyzed.Results There was no correlation (r=-0.131, P>0.05) and there was a very significant difference (P<0.001) between AE and AT on determining target heart rate. There was no correlation (r=0.372, P>0.05) between HR20 and AT. There was correlation (r=0.872, P<0.01) and there was no significant difference (P>0.05) between PI and AT on determining the target heart rate, and the Bland-Altman test showed a consistency between them. There was correlation (r=0.836, P<0.001) and there was no significant difference (P>0.05) between HRR and AT on determining the target heart rate, and Bland-Altman test demonstrated a consistency between them.Conclusion There was no correlation and consistency of AE and HR20 to AT on the target intensity of aerobic exercise. There was significant correlation and consistency between AT and HRR/PI.
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