太极拳对轻度认知障碍患者认知功能影响的时间效应分析

The time-effect of Tai Chi on cognitive function in patients with mild cognitive impairment

目的探索太极拳运动对社区轻度认知障碍老年人认知功能影响的时间效应。方法采用便利抽样的方法,于2015年6月至10月,选取北京市两个社区符合研究标准的轻度认知障碍老年人108例为研究对象,入组后按照居住地分为对照组(54例)和干预组(54例),均向两组研究对象讲解轻度认知障碍相关知识和发放手册,干预组在此基础上每周4次、每次40 min的太极拳运动干预。采用蒙特利尔认知评估量表-协和版和听觉词语学习测验测量干预前、干预3个月和干预6个月3个时间点两组研究对象总体认知功能、记忆力的变化特点。结果干预组与对照组比较,研究对象的总体认知功能、记忆力在干预前、干预3个月和干预6个月有明显的上升趋势(P<0.01)。结论随着太极拳锻炼时间的延长,轻度认知功能障碍老年人认知功能的改善越显著。

Objectives To explore the time-effect of Tai Chi on cognitive function of the elderly with mild cognitive impairment(MCI)from the community.Methods Participants were selected from a convenience sample of 108 elders with MCI.They were recruited from two communities in Beijing from June to October 2015.Based on their community distribution,participants were assigned to the intervention group and the control group with 54 cases in each.Participants in the control and intervention group both received health education and a handbook about the way to prevent MCI.In addition,participants in the intervention group also at least 40-minute session fourth times weekly Tai Chi training.To evaluate the efficacy of Tai Chi on cognitive function of elderly adults with MCI,Peking Union Medical College Version of Montreal Cognitive Assessment(MoCA-P),Auditory Verbal Learning Test(AVLT)were assessed at baseline,3rd month and 6th month after intervention.Results Compared with the control group,the total cognitive function,memory and executive function of the intervention group increased gradually with time(P<0.01).Conclusions With the prolongation of Tai Chi,the improvement of cognitive function in elderly with MCI is more obvious.