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目的:研究体力活动水平对中国人群肺功能指标的影响。方法:对7763例中国男性人群(16-74岁,46.9±7.8)进行横断面研究。根据IPAQ-SF问卷获得参与者的体力活动水平,并按照体力活动水平将参与者分为低、中等和高体力活动水平组三组。通过多变量线性回归分析评估吸烟者和非吸烟者的肺功能与体力活动水平之间的线性关系。结果:与低体力活动水平相比,非吸烟者中,中等体力活动水平组的FVC、FVC%pre和FEV1与体力活动水平正相关,FEV1%pre和FVC/FEV1与体力活动水平的关系不显著;高体力活动水平组的FVC、FVC%pre、FEV1、FEV1%pre均与体力活动水平显著正相关,FVC/FEV1与体力活动水平的关系不显著。与低体力活动水平相比,吸烟者中,中等和高体力活动水平组的肺功能指标与体力活动水平的关系均不显著。结论:在中国人群中,体力活动水平对非吸烟者肺功能指标的改善要远大于吸烟者,且体力活动水平越高,对非吸烟者的肺功能改善效果越明显。因此,可以通过倡导不吸烟和提高体力活动水平来改善中国人群的肺功能,从而对COPD进行预防。
Objective: To study the effect of physical activity on lung function in Chinese population. METHODS: A cross-sectional study of 7763 Chinese male subjects (16-74 years, 46.9 ± 7.8) was performed. According to the questionnaire of IPAQ-SF, the level of physical activity of participants was obtained, and participants were divided into three groups according to physical activity level, which were low, medium and high physical activity levels. Multivariate linear regression analysis was used to assess the linear relationship between lung function and physical activity levels in smokers and non-smokers. Results: FVC, FVC% pre and FEV1 in moderate physical activity group were positively correlated with physical activity level in non-smoker, while there was no significant correlation between FEV1% pre and FVC / FEV1 and physical activity level in non-smoker The levels of FVC, FVC% pre, FEV1 and FEV1% pre in high physical activity group were significantly and positively correlated with the physical activity level, while the relationship between FVC / FEV1 and physical activity level was not significant. Compared with the low level of physical activity, there was no significant correlation between the indexes of lung function and the level of physical activity in smokers with medium, high physical activity level. Conclusion: In Chinese population, the level of physical activity improves the lung function of non-smokers far more than that of smokers, and the higher the level of physical activity, the more obvious the effect of improving the lung function of non-smokers. Therefore, COPD can be prevented by advocating non-smoking and increasing physical activity to improve lung function in Chinese population.