Abstract：
Urban green spaces benefit physical, mental health, and reduses the risk of cardiovascular disease. A study in Kaunas, Lithuania collected health data from 100 patients with symptomatic heart failure (HF) during 2006-2009. Residential greenness was measured by the normalized difference vegetation index (NDVI). We assessed the impact of greenness on health indicators and on changes in health markers after 6 months. Higher greenness levels based on the NDVI 1-km radius were related to higher mean values of heart rate (HR) and ejection fraction and lower left ventricular (LV) end-diastolic diameter index (LV EDDI), LV end-systolic volume (ESV), left atrium size (LAS), and right atrium size (RAS) at baseline. After 6 months, a decrease in DBP and HR and an improvement in spiroergometric parameters were associated with exposure to high levels of greenness. The long-term rehabilitation group experienced significant changes in spiroergometric indicators. The results confirm that the greenness of the residential environment can improve health indicators in patients with HF.
摘要：
城市绿地有益于物质，心理健康,并降低心血管疾病的风险。一项在考纳斯的研究,立陶宛收集了2006-2009年期间100例有症状心力衰竭（HF）患者的健康数据。通过归一化植被指数（NDVI）测量住宅的绿度。我们评估了6个月后绿色对健康指标和健康指标变化的影响。基于NDVI1-km半径的较高的绿色水平与较高的心率（HR）和射血分数的平均值以及较低的左心室（LV）舒张末期直径指数（LVEDDI）有关。左心室收缩末期容积(ESV),左心房大小（LAS），和基线时的右心房大小（RAS）。六个月后,DBP和HR的降低以及肺活量参数的改善与暴露于高水平绿色相关.长期康复组的肺活量测量指标发生了显着变化。结果证实，居住环境的绿色可以改善HF患者的健康指标。
