The Influence of Ai Chi on Balance and Fear of Falling in Older
Adults: A Randomized Clinical Trial

Conclusion. This investigation’s findings suggest that an Ai Chi program leads
to a clinical relevant increase of both static and dynamic balance in older people.
There is a tendency to decrease fear of falling, although statistical significance
has not been reached, but since fear of falling increased in the control group, a
clinical relevant difference could be shown.

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http://www.atri.org/articles/Sova-Ai%20Chi%20Balance%20Research.pdf