| Research Purpose:To systematically evaluate the specific effects of whole-body vibration training(WBVT)on the balance ability of the elderly,in order to provide an evidence-based basis for the clinical and community application of this training method.Research Methods:We searched databases including PubMed,EMBASE,Web of Science,CINAHL,PEDro,Cochrane Library,CBM,CNKI,Wanfang,and VIP and selected all randomized controlled trials(RCTs)that reported the effects of WBV in the elderly.The retrieval time is from the establishment of the database to December 2019.The two members independently searched and screened the literature,extracted the data,and evaluated the methodological quality of the included studies,and then cross-checked.If there were differences of opinion,they were discussed,or the third member decided.Meta-analysis was performed by RevMan 5.3.If meta-analysis is not available,the descriptive analysis will be conducted.Research Results:28 RCTs were included,including 21 in English and 6 in Chinese and 1 in Korean,including studies from 10 countries,with a total of 1,874 older adults.Meta-analysis showed that in terms of the dynamic balance ability of the elderly,WBVT with a total intervention duration of 1.3-6.7 hours and 12.6-19.5 hours,respectively,had statistically significant improvement in the scores of the timed up and go test(TUG)of the elderly(P<0.05).In terms of the static balance ability of the elderly,WBVT with a total intervention duration of 3.6-6.7 hours and 12-30 hours had a statistically significant effect on the achievement of single-leg-stance test(SLST)of the elderly(P<0.05).WBVT with a total intervention duration of 6-12.6 hours had statistically significant improvement in the intensive Romberg test with closed eyes results in the elderly(P<0.05).In terms of functional balance ability of the elderly,WBVT with a total intervention duration of 1.8-4 hours had statistically significant improvement in Tinetti test(TT)scores(P<0.05).WBVT with an entire intervention duration of 2.4-3.6 hours had statistically significant improvement in berg balance scores(BBS)of the elderly(P<0.05).Concerning the risk of falls in the elderly,the total intervention duration of WBVT of 1.8-6.7 hours and 12.6-16 hours,respectively,has a statistically significant improvement in the performance of the five times sit to stand test(FTSST)of the elderly(P<0.05).In terms of the rate of falls in the elderly,WBVT with a total intervention duration of 2.25-4.9 hours could not reduce the incidence of falls in the elderly,and the difference was not statistically significant(P>0.05).In terms of the health status,WBVT with a total intervention duration of 2.6-3 hours had no statistically significant improvement in the physical and mental health of the elderly(P>0.05).In terms of the balance confidence of the elderly,WBVT with a total intervention duration of 2.4-2.6 hours had no statistical significance in improving the performance of the activities-specific balance confidence scale(ABC)(P>0.05).Research Conclusion:WBVT was effective in improving dynamic balance,static balance and functional balance of the elderly.WBVT can reduce the fall risk of the elderly and indirectly improve the balance ability of the elderly.The existing evidence shows that short-term WBVT has no significant effect on reducing the incidence of falls,improving the physical and mental health and balance confidence of the elderly.As some of the outcome evaluation indicators of this study involve a small number of studies and heterogeneity,more high-quality,multi-center,large-sample randomized controlled studies will be further confirmed in the future in to provide more evidence-based basis for clinical and community promotion of whole-body vibration training. |
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