Tai Chi human 4 aged 3 controlled study 3 Article 2 Humans 2 adult 2 exercise 2 female 2 male 2 walking 2 Activities of Daily Living 1 Adult 1 Aged 1 Bayesian analysis 1 Bayesian network 1 Beck Depression Inventory 1 Center for Epidemiological Studies Depression Scale 1 Chinese medicinal formula 1 Chinese medicine 1 Chinese traditional peripateticism pill 1 Exercise 1 Female 1 Irish (citizen) 1 Kessler Psychological Distress Scale (K6) 1 Male 1 Patient Health Questionnaire 9 1 Physical activity 1 Quality of Life 1 Sitting Position 1