Effects Of Brain-computer Interface Technology On Upper Limb And Hand Function In Stroke Patients With Hemiplegia

Stroke has been the leading cause of disability currently,which is a global public problem.In China,the number of stroke patients over 40 years old is as high as 12 million,and it is growing at an annual rate of 8%.Many patients have upper limb motor dysfunction after stroke,which affects the patient's social life and family life.Current upper limb rehabilitation methods are mainly based on one-to-one occupational therapy and hand function training,which are not only affected by the therapist's work experience and energy,but also cannot guarantee the treatment effect and patient's treatment requirements,resulting in the unsatisfactory recovery effect.As a potentially effective new method,brain-computer interface therapy is likely to improve the therapist's work efficiency,save manpower costs,and allow patients to obtain higher quality rehabilitation training.By studying the new brain-computer interface therapy,we hope to improve its application prospect in clinic.Purpose: To explore the effect of brain-computer interface technology on upper limb and hand function in stroke patients with hemiplegiaMethod: Thirty stroke patients in General Hospital of PLA were selected and randomly allocated to the experimental group or control group.General data collection and initial evaluation were performed for each subject.The patients in both groups participated in routine rehabilitation training and drug treatment.The subjects in the experimental group added brain-machine interface training,5 times a week for 20 minutes each.The subjects in the control group added neuromuscular electrical stimulation treatment,5 times a week for 20 minutes each.All trainings lasted for 8 weeks.The Brunnstrom grade,the modified Barthel index(MBI),the Fugl-Meyer motor assessment(FMA),the modified Ashworth scale(MAS),the kinesthetic and visual imagery questionnaire(KVIQ),and the pittsburgh rehabilitation participation scale(PRPS)are evaluated every two weeks and A total of 5 evaluations were performed.The anxiety self-assessment scale(SAS),the self-rating depression scale(SDS),and hand grab and relax test(HGRT)were used for the initial evaluation and the last evaluation.The changes of each evaluation index before and after training were compared.Results: Before training,there was no statistically significant difference in general data,the Brunnstrom grade,MBI scores,FMA scores,KVIQ scores,PRPS scores,SAS scores,SDS scores,and HGRT between the two groups(P>0.05).After 8 weeks of training,the Brunnstrom grade,MBI scores,FMA scores,KVIQ scores,PRPS scores,SAS scores,SDS scores,and HGRT scores had improved in the experimental group and the control group compared with pre-training.In addition,the evaluation index in experimental group improved more significantly except MBI and the difference was statistically significant(P < 0.05).The MAS score of the experimental group was significantly improved(P<0.05),while MAS score of the control group was not(P>0.05).Conclusions: Brain-computer interface technology can improve upper limb and hand motor function in stroke patients with hemiplegia.