Effect Of Virtual Scene Treadmill Exercise On Memory Function Of The Elderly With Amnestic Mild Cognitive Impairment

Objectives: To explore the effect of virtual scene treadmill exercise on memory function among the elderly with amnesia mild cognitive impairment.Methods: From May to July 2020,the research subjects were recruited in Nanning Beihu Nanmian Community Health Service Center,and cognitive screening was conducted.A total of 68 elderly patients with a MCI who met the inclusion and exclusion criteria were selected and randomly divided into the experimental group and the control group,with 34 cases in each group.The experimental group was implemented the virtual scene treadmill exercise,using the rehabilitation bicycle and a mobile phone software providing virtual bicycle scene as intervention tools,2-5 times a week,30-50 min each time,medium to low exercise intensity for 12 weeks.The control group received the same dose of indoor traditional treadmill exercise.Before intervention,baseline data of two groups were collected by AVLT-H,RBMT-II and Mo CA.After the intervention,AVLT-H and RBMT-II were used to evaluate the memory function of the two groups,and the effect of virtual scene treadmill exercise on the memory function of a MCI elderly was analyzed.SPSS 20.0 software was used for statistical analysis,with α=0.05 as the test level.Data analysis methods mainly included statistical description,chi-square test,nonparametric Kruskal Wallis H rank sum test,t test,Mann-Whitney U rank sum test and Wilcoxon rank sum test.Results: A total of 60 subjects completed the collection of all data,including 29 cases in the experimental group and 31 cases in the control group.The results showed that: ⑴After 12 weeks of intervention,the short-term memory score and long-delayed memory score of AVLT-H in the experimental group were significantly higher than those before intervention(P<0.05),and were significantly higher than those in the control group(P<0.05).⑵After intervention,the total score of RBMT-II in the experimental group was significantly higher than that before intervention(P < 0.05),and was significantly higher than that in the control group(P < 0.05).⑶ After intervention,the scores of story immediate recall,story delayed recall and route delayed recall in the experimental group were significantly higher than those before intervention(P<0.05),and were significantly higher than those in the control group(P<0.05).⑷The scores of route immediate recall,pictures recognition and name recall in the experimental group were significantly higher than those before intervention(P < 0.05),but there was no significant difference in the scores between the two groups(P>0.05).⑸There was no significant change in the scores of faces recognition,date and orientation in the experimental group compared with those before intervention(P>0.05),and there was no significant difference in the scores between the two groups(P>0.05).⑹The scores of three prospective behavioral memory(recall the objects hidden,recall reservation and recall the letter)in the experimental group had no significant change compared with those before intervention(P>0.05),and there was no significant difference in the scores between the two groups(P>0.05).Conclusion: Virtual scene treadmill exercise can improve the shortterm memory function,long-delayed memory function and partial recalled sexual behavior memory of the elderly with a MCI(including story immediate recall,story delayed recall and route delayed recall).Its influence on route immediate recall,name recall,pictures recognition,faces recognition,spatiotemporal orientation and prospective behavioral memory needs further discussion.It is suggested that the follow-up researchers further optimize the content of virtual scene to meet the personalized needs of the elderly,and pay attention to ensure the safety of patients in the process of clinical virtual scene exercise intervention.