6min步行距离和气短指数在城乡COPD患者中的差异性研究

目的探讨6min步行距离和气短指数在城乡COPD患者中的差异。方法 2010年6月至2011年10月,处于缓解期肺功能Ⅱ～Ⅳ级COPD患者108例,按照患者来源(农村或城市)分为城市组和农村组,进行6min步行试验,记录两组患者6min步行距离及步行前后的气短指数评分。结果 6min步行距离,Ⅱ、Ⅲ级COPD患者农村组高于城市组(P<0.05);Ⅳ级COPD患者农村组和城市组之间无明显差异(P>0.05)。同时,6分钟步行试验前后的气短指数评分,Ⅱ、Ⅲ级COPD患者农村组低于城市组(P<0.05);Ⅳ级COPD患者城市组与农村组之间无明显差异(P>0.05)。结论肺功能Ⅱ～Ⅲ级城乡COPD患者进行6min步行试验时6min步行距离和气短指数存在差异,提示COPD患者长期坚持适度体力劳动或运动锻炼有利于提高运动耐力。

Study on the difference of six--minute walking distance and short breath index for urban and rural patients with chronic obstructive pulmonary diseases

Objective To study the difference of six--minute walking distance （6MWD） and short breath index for ur- ban and rural patients with chronic obstructive pulmonary diseases （COPD）. Method Divide 108 patients with COPD in re- mission stage from June 2010 to October 2011 with pulmonary function ofⅡ-Ⅳ into urban group and rural group accord- ing to their origin region. After six--minute walking test, record their 6MWD and short breath indexes before and after walking. Result 6MWD for patients with COPD with pulmonary function of Ⅱ-Ⅲ in rural group is significantly longer than in urban group （P〈0. 05）. There is no significant difference on 6MWD between patients with COPD with pulmonary function of Ⅳ in rural and urban group （P〈0. 05）. Scores of short breath indexes before and after walking test for patients with COPD with pulmonary function of Ⅱ-Ⅲ in rural group are significantly lower than in urban group （P〈0. 05）. There is no significant difference on scores between patients with COPD with pulmonary function of iV in rural and urban group （P〈0. 05）. Conclusion There is significant difference on 6MWD and short breath index in six--minute walking test be- tween urban and rural patients with COPD with pulmonary function of Ⅱ-Ⅲ. Insisting on long-- term moderate manual work or physical exercise can improve exercise tolerance for patients with COPD.