Table 2.

Changes in Gait Variables, TUG and OLS

	Tai Chi	Ctrl	P value
UPDRS	−1.5 ± 6.6 (−5.6% ± 0.3)	4.3 ± 5.6 (17.2 % ± 0.2)	p = 0.025
Berg Balance Scale	3.3 ± 3.0 (7.0% ± 0.1)	−0.5 ± 2.1 (−1.0% ± 0.0)	p = 0.001*
Timed Up & Go (sec)	−1.0 s ± 0.1 (−10.2%± 0.0)	−0.1 s ± 1.1 (−1.15%± 0.1)	p = 0.093
Tandem Stance (sec)	8.3 ± 14.1 (34.8 % ± 0.6)	−11.6 ± 24.5 (−26.7% ± 0.6)	p = 0.018
One Leg Stance (sec)	−0.2s ± 13.1 (−1.2%± 0.8)	−0.6 s ± 20.2 (−3.1%± 1.1)	p = 0.918†
Backward FAP	6.5 ± 7.6 (10.9% ± 0.1)	0.8 ± 8.8 (1.2% ± 0.1)	p = 0.096
Backward stride length	0.1 m ± 18.7 (18.3%± 0.3)	−.03 m ± 26.5 (−3.2%±0.3)	p = 0.085
Backward velocity	0.2 m/s ± 19.6 (25.1%± 0.3)	−0.0m/s, ± 25.7 (−0.4%± 0.3)	p = 0.067
Forward FAP	1.8 ± 10.1 (1.9%± 0.1)	−1.3 ± 6.3 (−1.4%± 0.1)	p = 0.939†
Forward stride length	−0.1 m ±22.8 (5.8 %± 0.2)	0.0 m ± 6.6; (1.4 %± 0.1)	p = 0.151†
Forward velocity	0.01 m/s ±20.8 (6.2%±0.2)	0.1 m/s ±10.8 (5.4%± 0.1)	p = 0.838
Six Minute Walk (m)	44.4 ± 65.9 (10.3 % ± 0.2)	0.8 ± 43.4 (0.2% ± 0.1)	p = 0.046

Values are means ± SD for absolute change and in parentheses these scores are expressed as a percentage of baseline performance ± SD. The p values are reported for between-group comparisons of change scores using t-tests unless otherwise noted.

^*Significant difference Tai Chi vs. Ctrl.,

^†Mann-Whitney Rank Sum Test