Table 4 Changes from baseline to 9 months in balance related outcomes based on a subgroup of patients randomized to usual care and Tai Chi.

Avg. sway velocity (mean ± SD) (mm/sec)

% change (median [Q1, Q3])

10.75 ± 3.29

12.55 ± 5.26

0.92 (0.01, 2.49)

9.30 + 1.83

9.01 ± 1.83

-0.24 (-0.66, 0.51)

P = 0.027

AP sway range (mean ± SD) (mm)

% change (median [Q1, Q3])

22.53 ± 7.56

25.14 ± 9.86

2.27 (-1.55, 4.95)

24.45 ± 4.92

21.49 ± 5.41

-3.19 (-4.58, -1.88)

P = 0.014

Stabilogram ellipse area (mean ± SD) (mm2)

% change (median [Q1, Q3])

184.6 ± 180.2

234.5 ± 254.5

31.73 (8.08, 41.27)

155.4 ± 62.4

134.1 ± 71.2

-37.72 (-59.59, -29.40)

P = 0.060

Tandem walk (sec)

% change (median [Q1, Q3])

34.43 ± 9.14

31.37 ± 12.48

-1.82 (-9.86, 2.42)

42.75 ± 8.51

33.25 ± 7.82

-8.83 (-13.8, -5.46)

P = 0.116

Repeated chair rise (sec)

% change (median [Q1, Q3])

25.95 ± 6.55

23.91 ± 2.37

2.40 (-7.26, 2.93)

26.47 ± 4.39

23.73 ± 2.77

-2.39 (-4.97, -0.87)

P = 0.232