Study On The Effect Of Low Carbohydrate Diet On COPD Patients

Objective:Low carbohydrate diet interventions were conducted in hospitalized COPD patients for a period of hospitalization and 3 months after it.（1）To explore the impact of LCD on BODE index in COPD patie（Main indicator）;（2）To determine the effect of LCD on blood analysis in COPD patients（Secondary indicator）;（3）To investigate the effect of LCD on COPD patients’quality of life（Secondary indicator）.Method:A total of 63 COPD inpatients were selected by convenience sampling.And divided into an intervention group（n=30,from Feb.2017 to Apr.2017）and control（n=33,from Nov.2016 to Jan.2017）according to an admission order.The intervention group received a low carbohydrate diet（sugar:fat:protein=32:50:18）while the control group received a routine diet（sugar:fat:protein=55:27:18）.This research is a quasi-experimental study without contemporaneous control.Result:Among main indicators,FEV₁%、mMRC、6MWD and BODE index in intervention group have been improved after intervention（P<0.05）;Statistically significant of 6MWD and BODE index was found compared with the control group.Among secondary indicators,there was a significant improvement of PaCO₂、PaO₂、PH（P<0.05）in the intervention group while there was no significant difference between the two groups on quality of life after intervention.（P>0.05）.Conclusion:Low carbohydrate and high fat diet can effectively reduce the airflow obstruction in COPD patients,improve the status of blood analysis、symptoms of dyspnea and exercise capacity,and also play a significant positive effect on the prognosis of COPD patients.