The Effect Of Abdominal Breathing Training On Stroke Patients’ Diaphragmatic Function And The Application Of Ultrasonography To Measure The Change Of Diaphragm Thickness

Objective: Stroke has become the leading cause of disability in the world,and effective rehabilitation training can improve the dysfunction of patients.Stroke results in decreased respiratory muscle function in the hemiplegic side,impaired respiratory muscle function in the affected side,and decreased lung function,the main symptoms of patients are the decrease of respiratory muscle strength and endurance,and the respiratory muscle dysfunction of patients after stroke attracts increasing attention.Patients with respiratory muscle dysfunction are prone to complicated with pulmonary infection and other respiratory system diseases.Abdominal breathing training is an effective method to improve respiratory muscle strength and endurance after stroke.This study aims to prove the effectiveness and necessity of abdominal breathing training in patients with stroke,further explore the application of ultrasonic imaging technology to measure changes in diaphragm thickness in patients with stroke,and explore the degree of influence of abdominal breathing training on diaphragmatic muscle thickness and thickening rate.Methods: In this study,30 patients were selected,and the patients were randomly divided into the experimental group(N=15)and the control group(N=15).On the basis of routine rehabilitation training,the experimental group received an additional 3 weeks,5 days a week,once a day,20-minute abdominal breathing training,while the control group received only routine rehabilitation training.The diaphragm thickness and thickness change ratio,locomotor function(simplified Fugl-Meyer scales),ADL(modified BI and FIM scales),and balance function(BBS)was measured for all participants before and after training,and the results were analyzed.Results: In the experimental group and the control group,the diaphragm thickness at total lung capacity and thickness change ratio on the less affected side and the affected side were significantly improved after training(P<0.05).Although the diaphragm thickness at the end of expiration on the less affected side and the affected side were improved after training,the difference was not significantly(P>0.05).After training,the diaphragm thickness change ratio on the affected side in the experimental group was significantly improved compared with the control group(P<0.05).After training,the locomotor function,activity of daily living and balance function in the experimental group and the control group were significantly improved compared with that before training(P<0.05).But after training,there were no significant difference in the locomotor function,activity of daily living and balance function between the experimental group and the control group(P>0.05).Conclusion: 1.Abdominal breathing training,like routine rehabilitation training,can improve the diaphragm thickness at total lung capacity and thickness change ratio in stroke patients,but abdominal breathing training can more effectively improve the thickening rate of the diaphragm thickness change ratio on the affected side,and is more effective in improving the function of the diaphragm.2.Abdominal breathing training is helpful to improve the locomotor function and balance function of stroke patients.3.The advantages of ultrasonography over other imaging modalities include objective,operability,and noninvasive.The application of ultrasonography in the evaluation and feedback of rehabilitation training can make the results more intuitive,provide guidance for the formulation and adjustment of rehabilitation plan,and improve the patients’ confidence for further rehabilitation training.