虚拟现实同步电刺激呼吸训练对慢性心力衰竭患者运动耐力的影响OA

Objective To investigate the effects of virtual reality synchronized electrical stimulation breathing training on exer-cise tolerance in patients with chronic heart failure(CHF).Methods A total of 60 CHF patients admitted to Jiangbin Hospital of Guangxi Zhuang Autonomous Region from August 2022 to June 2024 were selected and divided into three groups(A group,B group,and C group)by random number table method.Each group had 20 cases.All the enrolled subjects received conventional drug thera-py.In addition,A group received conventional breathing training,B group received electrical stimulation breathing training(ER),and C group received virtual reality synchronized electrical stimulation breathing training(VR-ER).The changes in cardiopulmonary function and exercise tolerance before and after 9 weeks of 36 training sessions in the three groups were compared.Results There were no significant differences in peak oxygen consumption(PeakVO2),peak power(WR),respiratory exchange ratio(RER),forced expiratory volume in one second of the predicted value(FEV1％),forced vital capacity of the predicted value(FVC％),forced expir-atory volume in one second of the predicted value(FEV1/FVC),NT-proBNP,left ventricular end-diastolic diameter(LVDD),and left ventricular ejection fraction(LVEF)before and after treatment in the three groups(P＞0.05).There was a significant difference in the comparison of peak expiratory flow rate(PEF％)after intervention between the three groups(P＜0.05),with VR-ER showing the most significant improvement,followed by ER group.There was a significant difference in the comparison of the changes in PeakVO2,WR,RER,FEV1％,and FVC％before and after treatment in the three groups(P＜0.05),with VR-ER showing the most significant improvement,followed by ER group.Conclusion Virtual reality synchronized electrical stimulation breathing training can im-prove the breathing muscle strength of CHF patients and have a positive impact on improving pulmonary function and exercise tolerance.