Holmgeirsdottir Kristin Elisabet, Jonsson Brynjolfur Gauti, Aspelund Thor, Gudmundsson Gunnar, Gudlaugsson Janus
Heart and Lung Rehabilitation Center, Reykjavík, Department of Rehabilitation, National University Hospital, Reykjavik.
Statistical Consulting Center, School of Health Sciences.
Laeknabladid. 2019 Nov;105(11):491-497. doi: 10.17992/lbl.2019.11.256.
Limited information is available on the effects of cardiac rehabilitation (CR) on individuals with heart failure (HF) in Iceland. The aim of this study was to analyze whether CR yielded increased physical capacity (PC) (w/kg) as measured by maximum exercise test at the end of the training period.
This is a retrospective data study from January 2010 to June 2018. Participants were patients with HF and also patients with ejection fraction (EF) 45% or less. Age and other diagnoses did not limit participation. Information about EF and exercise test at the beginning and end of the training period had to be recorded. Relative change in PC on these tests was evaluated by general linear models for repeated measurements. During the study period, 112 participants were enrolled, 27 did not finish the training period and 9 had incomplete data. Data from 76 participants aged 36-83 were analyzed.
Participants' PC increased on average by 16% (p<0.001; confidence interval 13-18%). On average, those who attended training more than twice a week improved their PC by 18% which is -significantly more than those who trained twice or less who improved by 6%. The age group 65-83 improved by 19%, which is significantly more compared to the age group 36-64, which added 12%. No significant difference was in improvement between groups with EF under 40% or 40% and more.
Focused CR for individuals with HF and individuals with impaired EF resulted in increased PC.
关于心脏康复（CR）对冰岛心力衰竭（HF）患者影响的信息有限。本研究的目的是分析在训练期结束时，通过最大运动测试测量，CR是否能提高身体能力（PC）（体重/千克）。
这是一项2010年1月至2018年6月的回顾性数据研究。参与者为HF患者以及射血分数（EF）为45%或更低的患者。年龄和其他诊断不限制参与。必须记录训练期开始和结束时的EF和运动测试信息。通过重复测量的一般线性模型评估这些测试中PC的相对变化。在研究期间，共招募了112名参与者，27人未完成训练期，9人数据不完整。对76名年龄在36 - 83岁的参与者的数据进行了分析。
参与者的PC平均提高了16%（p<0.001；置信区间13 - 18%）。平均而言，每周参加训练超过两次的人PC提高了18%，这明显高于每周训练两次或更少且PC提高了6%的人。65 - 83岁年龄组提高了19%，与提高了12%的36 - 64岁年龄组相比，明显更高。EF低于40%或40%及以上的组之间在改善方面没有显著差异。
针对HF患者和EF受损患者的针对性CR可提高PC。
