Effects Of Simplified Eight-form Of Tai Chi Practice On The Balance Control Among Older Adults

Objective:Falls are the primary cause of death in the old adults in addition to diseases,and threaten the lives and health of the old adults.Falls are the result of a combination of many factors,and the decline in balance function is the main cause of falls in the old adults.As one of the long-standing exercise methods in our country,Tai Chi has certain advantages in improving the balance of the old adults.At present,the most widely used is 24-style simplified Tai Chi.Although 24-style simplified Tai Chi can prevent falls and improve balance,it has a variety of complex movements,and difficult to learn.On the basis of the 24-style simplified Tai Chi,Li et al.reduced the difficulty of Tai Chi practice and created a simplified eight-style Tai Chi.However,the effect of Simplified eight-form Tai Chi on static and dynamic balance abilities has not yet been verified.Therefore,this study conducted a 16-week simplified eight-style Tai Chi intervention for the old adults to explore the effect of improving the static and dynamic balance of the old adults.Method:In this study,participants who are in good physical condition and willing to participate in this study were recruited from the Jianda Garden Community of Jinan City by way of voluntary registration.A total of 40 people were recruited in this study,and they were randomly divided into a simplified eight-style Tai Chi group(20 people)and a control group(20 people).After 16-week of intervention,31 of the 40 participants who participated in the initial study completed the 16-week exercise,leaving 15 people in the simplified eight-style Tai Chi group and 16 people in the control group.The basic information of the subjects is the simplified eight-style Tai Chi group: age: 66.4 ± 1.7 years,height: 164.7 ± 6.5cm,weight: 65.4 ± 8.3kg;control group: age: 66.7 ± 1.8 years,height 163.9 ± 4.0cm,Weight: 63.5 ± 7.3kg.All subjects need to perform a second test.The test content includes static balance and dynamic balance.The static balance indicators include: env area,the root mean square of the COP in the anterior-posterior and medial-lateral directions,the average velocity of the COP in the anterior-posterior and medial-lateral directions,and the displacement of the COP in the anterior-posterior and medial-lateral directions.The dynamic balance indicators include: TUG,Berg.The static variables uses the Kistler three-dimensional force plate collected data,and calculates the coordinates of the COP on the X and Y axes by detecting the vertical pressure on the force plate,so as to obtain an indicator of the subject’s static balance ability.The dynamic balance ability is tested with a scale.Statistical analysis was performed using SPSS software.In order to ensure the reliability of the data,each subject selects three valid data for each task to take the average value,and data were reported as means ± standard deviations.Two-way ANOVA repeatated analysis measures was used to verify the research hypothesis.If a significant interaction was observed between these independent variables,then Bonferroni’s adjusted post hocs were adopted to perform a pairwise comparison of the data collected from the two groups.Result:1 Static balance test index(1)In the one-legged standing state,compared with before the intervention,after the intervention.In the simplified eight-form Tai Chi group,the COP envelope area of eyes open(P<0.001)and eyes closed(P<0.001),the root mean square of COP in the anterior-posterior direction(AP)of the eyes closed(P<0.001),the medial-lateral direction(ML)of the eyes closed(P =0.001),The mean rate of COP in the anterior-posterior direction(AP)(P =0.002),COP displacement before and after eyes opening(P =0.007),COP displacement around eyes closing(P<0.001)decreased significantly.In the control group,the COP envelope area of eyes open(P=0.270),the root mean square of COP in the anterior-posterior direction(AP)of the eyes closed(P=0.532),around eyes closed(P=0.456),the mean rate of COP in the anterior-posterior direction(AP)of the eyes closed(P=0.896),the anterior-posterior direction(AP)of the eyes open(P=0.749),There was no significant change in COP displacement in the medial-lateral direction(ML)of eye closure(P=0.337).Compared with before intervention,the standing time of eyes opening(P<0.001)was significantly increased in the simplified eight-form Tai Chi group after intervention.There was no significant change in the standing time of the control group(P=0.833).(2)Under the condition of standing on both feet,compared with before and after the intervention,the root mean square of COP in the anterior-posterior direction(AP)of the opening eyes(P<0.001)and COP displacement(P=0.004)in the simplified eight-form Tai Chi group were significantly decreased after the intervention;In the control group,the root mean square of COP in the anterior-posterior direction(AP)of the opening eyes(P=0.072)and COP displacement(P=0.876)had no significant change.2 Dynamic balance test index Compared with before and after the intervention,TUG index(P=0.004)decreased significantly in simplified eight-form Tai Chi group after the intervention.There was no significant change in TUG index in control group(P=0.637).Conclusion:(1)The 16-week simplified eight-form Tai Chi exercises can improve the static balance ability of the old adults.The indicators of standing on one foot are: standing time with eyes open,displacement of COP in the anteroposterior direction and envelope area;standing with eyes closed in COP anteroposterior direction root mean square,average velocity of COP front and back,left and right direction,displacement of COP left and right direction,and both foot standing index: The index of root mean square of COP front and back direction and COP displacement in the state of open eyes are reflected.(2)The 16-week simplified eight-form Tai Chi exercise has the effect of improving the dynamic balance ability of the old adults,which is reflected by the TUG index.