Group

Factor (Mean ± SD)

Control (N = 15%, 34%)

Tai Chi (N = 29%, 66%)

p-value^*

UPDRS I (depression)

0.3 ± 0.5

−0.1 ± 0.6

0.054

UPDRS III (Finger tapping)

0.4 ± 0.7

−0.07 ± 0.9

0.090

UPDRS III (Posture)

0.1 ± 0.3

−0.3 ± 0.7

0.093

UPDRS III (Rapid altern. movement of hands)

2.0 ± 0.9

−0.3 ± 0.7

0.16