Lower-limb Proprioception,balance,transfer And Mobility In Older People

ObjectiveAt present,there are increasingly older adults in China.The progress of aging has made the quality of life of older adults a major social and economic issue.The lower limb proprioceptive function plays an important role in the movement control of the human body in daily activities.Due to the degenerative changes caused by aging,older adults' proprioceptive function is significantly reduced,affecting their balance,transfer and mobility.However,whether there is a difference in the effects of the lower-limb proprioception on the balance,transfer,and mobility,and whether the changes in the proprioception of hip,knee and ankle joints,balance,transfer,and mobility of the old people are related to the aging are not yet clear.The purpose of this study is(1)to explore the relationship between the lower-limb proprioception,balance,transfer and mobility in elderly people;(2)to explore the trends of the lowerlimb proprioception,balance,transfer and mobility in elderly people.MethodsThis study investigated the proprioception of lower limbs,balance,transfer and mobility in people over 60 years old.A total of 102 community participants were involved after the calculation of sample size and divided into 4 groups:60-64 years group(n=38),65-69 years group(n=30);70-74 years group(n=16)and 75-89 years group(n=14).The proprioception of the hip,knee,and ankle joints was measured by using the active movement discrimination approach;the Biosway balance system was used to assess the balance including eyes opened overall stability(EOOS)and eyes closed overall stability(ECOS).The 30-second sit-to-stand test and the timed up and go test were used for the measurement of transfer and mobility of the older people,respectively.Correlation analysis and multiple linear regression models were used to determine the relationship between the proprioception of the lower limbs,balance,transfer and mobility.The trend test was used to perform a quadratic test on the variation trend of each variable with aging.Results1.Proprioception of hip joint is a significant predictor of older people's balance ability(R2=0.07,F=7.43,p=0.01);2.The proprioception of ankle joint is a significant predictor of the older people's ability of transfer and mobility(R2=0.08,F=13.81,p<0.01;R2=0.09,F= 9.41,p<0.01);3.In the proprioception of the lower limbs,there was only a significant positive correlation between the knee joint and the hip joint(r=0.56,p<0.01);The correlation between ankle and hip,knee joint was not statistically significant.4.There was a significant positive correlation between EOOS and ECOS(r=0.68,p<0.01).5.There was a significant negative correlation between 30s-STS and TUG in older people(r=-0.51,p<0.01).6.There was no statistical difference in knee and hip joint proprioception between different age groups(p>0.05),no linearity(p>0.05)and quadratic curve trend(p>0.05);7.The proprioception of ankle joint in 75~89 years group is worse than other three groups(p<0.05;p<0.05;p<0.05).The linear trend was statistically different(p<0.05).The trend of quadratic curve was not significant(p>0.05);8.the EOOS,30s-STS and TUG of the older people in the age group of 75~89 years were statistically different from the other three age groups(p<0.05;p<0.01;p<0.01),and the trend of the quadratic curve with aging was significant(p<0.05;p<0.01;p<0.01).ConclusionLower-limb proprioception has different influence on the balance,transfer and mobility of older people.Among proprioception of hip,knee and ankle joint,the proprioception of hip joint is a significant predictor of the balance ability.However,ankle joint proprioception is a significant predictor of the ability to transfer and mobility in older people.Therefore,we recommend specificdesigned program should be considered including target factors in order to improve the intervention effect while reducing the intervention time.In addition,aging has similar effects on balance,transfer,and mobility of older adults,both of which are significantly reduced after the age of 75.The results indicated that older people over the age of 75 have a higher risk of fall.Therefore,it is necessary to pay attention to older people over the age of 75 while performing targeted exercise interventions.The study focus on target predictor and age are useful to achieve healthy aging and “Healthy China in 2030”.