4.2. Exclusion criteria
The exclusion criteria are: (1) currently suffering from a
major illness; (2) currently taking antidepressant medication;
(3) currently training or have trained in Tai Chi in the
past 12 months; (4) currently exercising on a regular basis
(greater than 5 hours of exercise per week on a regular
basis); and (5) currently pregnant.
(SPIRIT items 10, 11c, 15, 18b, 22 and 26a)