【摘要】 目的探讨6min步行运动训练对不同程度慢性心力衰竭(心衰)患者左心室射血分数的影响。方法将62例心功能Ⅱ～Ⅲ级的慢性心衰患者按分层抽样法随机分为训练组(n=33)和对照组(n=29),在入院24h内行左室射血分数及6min步行距离测定,然后两组均行常规抗心衰药物治疗,但训练组每天2次行6min步行运动训练,8周后重复检测上述指标。结果运动训练显著改善慢性心衰症状,训练组步行距离在治疗8周后较对照组更加明显犤能II级为(492±56)m和(386±49)m;心功能III级为(386±49)m和(297±40)m犦,均有显著差异(P<0.05)。治疗8周后,两组患者LVEF均较入院时升高,但训练组升高的程度比对照组更显著犤能II级为(0.56±0.06)和(0.52±0.05);心功能III级为(0.51±0.04)和(0.48±0.06)犦(t=2.10～3.81,P<0.05～0.01)。结论6min步行运动训练可显著提高慢性心衰患者的左心室射血分数。更多还原

【Abstract】 Aim To investigate the effect of six-minute walking training on left v entricular ejection fraction (LVEF) in chronic heart failure (HF) patients.Metho ds Sixty-two NYHA Ⅱ-ⅢHF patients were randomly divided into two groups accor ding to stratified sampling, training group (n=33) and control group (n=29). LVE F and 6-minute walking training were conducted within 24 hours after the patien t was admitted. Then the patients of two groups were treated with routine drugs for heart failure, but six-minutes walking training was only performed in the t raining group twice a day for 8 weeks of treatment. The above parameters were in vestigated again at the end of the training.Results The symptoms were improved a nd walking distance was extended significantly in HF patients after exercise. Wh en the cardiac function was grade II and III respectively, the distance in the t raining group was(492±56) m and (386±49) m respectively, significantly longer than that in the control group [(386±49) m and (297±40) m respectively] after 8 weeks of treatment. When the cardiac function was grade II and III respectivel y, the LVEF before treatment was (0.56±0.06) and (0.51±0.04) in the training g roup respectively, significantly higher than that in the control group[(0.52±0. 055) and (0.48±0.06) respectively, t=2.10-3.81, P< 0.05-0.01]. Conclusion Six -minute walking training significantly improves the LVEF in HF patient.更多还原