Clinical Study Of DC-L-500 Intelligent Walking Improvement Of On Lower Limb Abnormal Motion Patterns For Stroke Patients

Objective:The abnormal movement pattern of lower limbs after stroke is a common factor that hinders the recovery of motor function of lower limbs after stroke.At present,the effect of routine rehabilitation is still unsatisfactory,and there is no objective evaluation index.The purpose of this paper is to observe the effect of DC-L-500 intelligent walking aid combined with routine rehabilitation training on the improvement of lower limb motor dysfunction caused by abnormal movement pattern after stroke,and to provide relatively objective theoretical support for its better application to lower limb motor dysfunction after stroke and to improve the abnormal movement pattern of lower limbs.Methods:In this study,30 patients with abnormal lower limb movements after stroke were selected by computer random method and randomly divided into experimental group and conventional rehabilitation group.The routine rehabilitation group received routine rehabilitation training,while the experimental group used DC-L-500 intelligent walker to train on the basis of routine rehabilitation training.Each training time was extended gradually from 15 minutes to 30 minutes,once a day,five times a week,for 4 weeks.Before,after and after the intervention,the subjects in the two groups used the simplified Fugl-Meyer motor function scale,unarmed muscle strength assessment,improved Ashworth muscle tension assessment,Berg balance scale,improved Barthel index,10-meter walking test and surface electromyography signal respectively.The changes of each index in the two groups were observed.Results:l.In terms of lower limb motor function,the scores of simplified Fugl-Meyer scale in the 2nd and 4th week of intervention were higher than those before intervention,and those in the experimental group were higher than those in the conventional rehabilitation group,with statistical significance(P<0.05).2.In terms of balance function,at the end of the 4th week of intervention,the scores of Berg balance scale in the two groups were higher than those before treatment,and the scores in the experimental group were higher than those in the conventional rehabilitation group(P<0.05).3.In terms of muscle strength,the rectus femoris and hamstring muscles of the two groups increased in the 2nd and 4th week of intervention,and the strength of the experimental group was higher than that of the conventional rehabilitation group(P<0.05);at the end of the 2nd week of intervention,there was no significant difference in the strength of anterior tibial muscle and gastrocnemius muscle between the two groups at the 2nd week of intervention(P>0.05).At the end of the 4th week of intervention,the strength of anterior tibial muscle and gastrocnemius muscle of the two groups was trunk.The difference was statistically significant(P<0.05).4.Muscle tension of rectus femoris,hamstrings,anterior tibialis and gastrocnemius decreased in the second and fourth weeks of intervention compared with that before intervention,while that of the experimental group was higher than that of the conventional rehabilitation group,with statistical significance(P<0.05).5.As for activities of daily living,the scores of improved Barthel index in the second and fourth weeks of intervention were higher than those before intervention,and the scores in the experimental group were higher than those in the conventional rehabilitation group,with statistical significance(P<0.05).6.In terms of walking ability,at the end of the fourth week of intervention,the time required for 10-meter walking in both groups was less than that before treatment,and that in the experimental group was higher than that in the conventional rehabilitation group,the difference was statistically significant(P<0.05).7.In terms of surface EMG parameters,there were significant differences in the maximal isometric contraction of knee flexion and extension between the two groups at the 2nd and 4th weeks of intervention.The experimental group was superior to the conventional rehabilitation group in terms of the synergistic contraction rate of knee flexion and extension(P<0.05).At the 4th week of intervention,there was no significant difference in the synergistic contraction rate of knee flexion(P>0.05);at the 2nd and 4th weeks of intervention,there were significant differences in the synergistic contraction rate of knee flexion between the two groups.The synergistic contraction rates of tibialis anterior muscle,gastrocnemius muscle iEMG and ankle dorsiflexion were significantly different between the two groups in the maximum isometric contraction of ankle dorsiflexion and plantar flexion.The experimental group was superior to the conventional rehabilitation group,and the difference was statistically significant(P<0.05).There was no significant difference in synergistic contraction rates of ankle dorsiflexion and plantar flexion at 4 weeks of intervention(P>0.05).Conclusion:1.4 weeks of DC-L-500 intelligent Walker combined with routine rehabilitation training can significantly improve the abnormal pattern of lower limbs after stroke;2.2 weeks of DC-L-500 intelligent Walker combined with routine rehabilitation training can improve the balance function caused by abnormal movement pattern of lower limbs after stroke,increase the muscle strength of affected lower limbs,reduce the muscle tension of affected lower limbs,improve the activity of daily life and the whole lower limbs.Motion function,improve walking function.