Application of motor imagery-based brain computer interface in stroke patients with hand dysfunction
Objective:To investigate the efficacy of motor imagery-based brain computer interface(MI-BCI)sys-tem for hand function rehabilitation after stroke.Methods:According to the inclusion criteria,53 chronic stroke pa-tients who were hospitalized,and randomly divided into two groups:the research group(n=25)and the control group(n=28).The research group underwent MI-BCI hand rehabilitation training based on traditional rehabilita-tion training,while the control group underwent mechanical hand and traditional rehabilitation training.both for 20 times intervention in 4 weeks.The Wolf motor function test(WMFT),Fugl-Meyer assessment for upper extremity(FMA-UE),modified Ashworth score(MAS),7-level hand function score,grip strength,NIHSS,modified Bar-thel index(MBI)were used for assessment at baseline,10 times of intervention,20 times of intervention,and 1 month of follow-up.Results:After 10 and 20 treatments,and 1-month follow-up,the total WMFT completion time and NIHSS score in both groups reduced compared with the pre-treatment(P＜0.05).The total WMFT score,FMA-UE score,FMA-wrist score,research group hand grip strength,and MBI score in both groups increased com-pared with the pre-treatment(P＜0.05).The FMA-UE score,FMA-wrist score,hand grip strength,and MBI score in the BG increased compared with the CG(P＜0.01),while the NIHSS score in the BG reduced compared with the CG(P＜0.05).The 7-level hand function grade in the BG improved compared with the pre—treatment and the CG(P＜0.05).There was a sig-nificant time effect(P＜0.001)in all indicators between the two groups.And a significant group effect(P＜0.05)in the total WMFT completion time and the hand grip strength,which were significantly higher in the BG than in the CG(P＜0.05).Conclusion:MI-BCI rehabilitation training system can significantly improve hand function in pa-tients with moderate-to-severe dysfunction in the chronic phase of stroke without significant adverse reactions,and it can be regarded as one of the effective standardized intervention programs.
strokemotor imagerybrain-computer interfacehand function
万方数据
维普
