Effect of progressive resistance inspiratory muscle training on pulmonary and diaphragmatic function changes in stroke patients
Objective:To explore the efficacy of progressive resistance inspiratory muscle training on lung function and diaphragm function in stroke patients,and to provide a basis for promoting respiratory rehabilitation in stroke patients.Methods:A total of 118 stroke patients were selected for the study and randomly divided into the control group(n=59)and the experimental group(n=59).The control group was given conventional respiratory training(abdominal lip-contraction breathing training,percussion expectoration training,thoracic release training),and the experimental group was given progressive resistance inspiratory muscle training for 30 min every time,twice a day,and 6 days every week for 4 weeks.The pulmonary ventilation indexes of the 2 groups before and after intervention were compared:forceful lung volume(FVC),forceful expiratory volume in the first second(FEV1),FEV1/FVC with peak expiratory flow(PEF);inspiratory muscle function:maximal inspiratory pressure(MIP);diaphragm function:diaphragm thickness at the end of inhalation(DTei),diaphragm thickness at the end of exhalation(DT-ee),diaphragm thickening rate(DTF)and diaphragm mobility profile.Results:After intervention,all pulmonary ventilation indexes(FVC,FEV1,FEV1/FVC,PEF)and inspiratory muscle function(MIP)in the 2 groups were better than those before treatment,and at the same time,those in the experimental group were significantly better than in the control group(P＜0.001);DTei,DTF and diaphragm mobility in the 2 groups were higher than those before treatment,and all of the above diaphragm functions in the experimental group were significantly better than in the control group(P＜0.05).However,there was no statistically significant difference in the intergroup compar-ison of DTee after treatment in the 2 groups.Conclusion:Progressive resistance inspiratory muscle training improves lung function and diaphragm function more significantly than conventional respiratory training in stroke patients.
strokeprogressive resistance inspiratory muscle trainingdiaphragm functionlung function
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