The relationship between pulmonary function or metabolic indexes in overweight or obesity adults

Abstract

Objective To investigate the relationship of pulmonary function and metabolic indexes in overweight as well as obesity people.Methods Three hundred and five health examination adults were selected as our subjects.The basic parameters,metabolic indexes and pulmonary function were measured.Of which,pulmonary function indexes include forced vital capacity (FVC),forced expiratory volume in one(FEV1),peak expiratory flow(PEF),the ratio of the forced expiratory volume in the first one second to the forced vital capacity (FEV1/FVC),the ratio of the forced expiratory volume in the first one second to the vital capacity(FEV1/VC),maximal expiratory flow after 50％ of the FVC (MEF50),maximal expiratory flow after 25％ of the FVC (MEF25),and each index value of lung function was expressed the ratio of the measured value/the predictive value.Metabolic indexes include triglycerides (TG),total cholesterol (TC),low-density lipoprotein cholesterol (LDL-C),fasting plasma glucose (FPG)),C-reactive protein (CRP),high-sensitivity C-reactive (hs-CRP),superoxide dismutase(SOD),systoloc blood pressure (SBP) and diastolic blood pressure (DBP).Statistical analysis methods include one-way analysis of variance and Spearman correlation analysis.Results The levels of FVC,FEV1,FEV1/FVC in overweight and the obesity group were (85.74 ± 13.94)％ and (82.85±13.34)％,(84.52 ± 14.62)％ and (82.74 ± 14.18)％,(103.40 ± 13.05)％ and (103.17 ±8.99)％respectively,lower than that of normal weight group [(95.79 ± 26.83) ％,(92.65 ± 26.93) ％,(99.98± 11.88) ％,all P values less than 0.05)].Compared with the normal weight group,the levels of TG,SBP,FPG in overweight group and the obesity group were significantly increased.The levels of LDL-C,DBP,hs-CRP in obesity were (5.05 ± 0.83) rmtmol/L,(86.64 ± 10.49) mmHg,(3.74 ± 5.51) mg/L respectively,higher than that of normal group [(3.08 ±0.96) mmol/L,(77.69 ± 13.20) mmHg,(2.33 ±4.67) mg/L,P ＜0.05)].SOD activities in overweight and obesity group were (140.82 ± 13.16),(144.89 ± 13.82) U/L respectively,significantly lower than that of normal weight group[(148.64 ± 14.94) U/L,P ＜0.05)).The levels of SBP,DBP,hs-CRP in the over weight group were (127.77 ± 19.07) mmHg,(80.87 ± 12.21) mmHg,(2.31± 3.73) mg/L),higher than that of obesity group.Among metabolic indices,TG,SBP,DBP,FBG,CRP,hs-CRP and SOD were related with FVC (r =-0.129,-0.129,-0.136,-0.180,-0.220,-0.217 respectively,P ＜ 0.05 or P ＜ 0.01).There was negatively correlated relationship between SBP,FBG,CRP,hs-CRP and FEV1 (r =-0.128,-0.127,-0.148,-0.198 respectively,P ＜0.05 or P ＜0.01),So were SBP,CRP,hs-CRP and PEF (r =-0.137,-0.117,-0.133 respectively,P ＜ 0.05).Negatively correlated relationship between hsCRP,SBP and MEF50 were seen (r =-0.126,-0.124,P ＜ 0.05).Meanwhile there was negatively correlated relationship between SOD and FVC,FEV1/FEV,PEF,MEF50 (r =0.149,0.094,0.119,0.141,0.129respectively,P ＜ 0.05 or P ＜ 0.01).Conclusion Impaired pulmonary function and metabolic disorders were showed in the overweight and obesity people.Metabolic indexes were related with pulmonary function. Key words: Body mass index; Pulmonary function; Metabolic indexes