Effect Of Hand Rehabilitation Robot Based On Force Feedback Combined With Task-oriented Training On The Gross Grasping Function Of Fingers In Stroke Patients With Hemiplegia

Objective: By observing the effect of task-oriented training assisted by force feedback hand rehabilitation robot on the gross grasping function of fingers in stroke patients with hemiplegia,explore the rehabilitation effect of rehabilitation robot on hemiplegic finger function,and provide a basis for the clinical application of force feedback hand rehabilitation robot in hemiplegic rehabilitation.Methods: A total of 44 stroke patients with hemiplegia who were hospitalized in the Rehabilitation Department of the First Hospital of Jilin University from September 2021 to March 2022 and conformed to the inclusion criteria were collected.All patients were randomly divided into the experimental group（n=22）and the control group（n=22）.Both groups received 40 min conventional upper limb rehabilitation training.On this basis,the experimental group received 20 min task-oriented training assisted by a force feedback rehabilitation robot,and the control group received 20 min task-oriented training assisted by therapists,once a day,5 days a week for 4 weeks.Before and after treatment,Modified ashworth scale（MAS）,Range of motion（ROM）,grip strength,Fugl-meyer motor function assessment-upper limb（FMA-UL）finger motor part,Brunnstrom recovery stages of hand（BRS-H）,grasp and grip part of Action research arm test（ARAT）,and Barthel index（BI）were used to evaluate the efficacy.Results: During the study period,2 patients in the experimental group and the control group dropped out respectively.Finally,40 patients（20 patients in the experimental group and 20 patients in the control group）were included in the result analysis of this study.Before treatment,there were no significant differences in finger flexor MAS,finger ROM,grip strength,FMA-UL finger motor part score,BRS-H,ARAT grasp and grip part score and BI score between the two groups（P>0.05）,indicating comparability.Intra-group comparison:After treatment,finger AROM,grip strength,FMA-UL finger motor part score,BRS-H,ARAT grasp and grip part score and BI score in the experimental group were significantly higher than those before after treatment,the differences were statistically significant（P<0.05）.while there was no significant difference in finger flexor MAS before and after treatment（P>0.05）.In the control group,there were statistically significant differences in finger AROM,grip strength,FMA-UL finger motor score,BRS-H,ARAT grasp and grip part score and BI score after treatment compared with before treatment（P<0.05）,while there were no significant differences in finger flexor MAS before and after treatment（P>0.05）.Comparison between the two groups: After 4 weeks of treatment,finger AROM,grip strength,FMA-UL finger motor part score,and ARAT grasp and grip part score of the experimental group were better than those of the control group,with statistically significant differences（P<0.05）.In the AROM subitem analysis,the total AROM of the thumb,index finger,and middle finger,the total AROM of the five finger flexion,and the sum of the total AROM of the five fingers in the experimental group were significantly better than those in the control group（P<0.05）.In the sub item analysis of the FMA-UL finger motor part score,the experimental group was better than the control group in cylindrical grasp and spherical grasp,and the difference was statistically significant（P<0.05）.Conclusion:（1）Task-oriented training assisted by force feedback rehabilitation robot can effectively improve the total AROM of thumb,index finger,and middle finger,and active flexion of five fingers in stroke patients with hemiplegia,and the effect is better than conventional task-oriented rehabilitation training;（2）Task-oriented training assisted by force feedback rehabilitation robot can improve the cylindrical and spherical grasping strength of finger in stroke patients with hemiplegia,and the effect is better than conventional task-oriented rehabilitation training;（3）Task-oriented training assisted by a force-feedback rehabilitation robot can improve the finger motor function of stroke patients with hemiplegia,so as to effectively improve their activities of daily living.