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. 2026 Feb 11;14:e20773. doi: 10.7717/peerj.20773

Table 2. Characteristics of eligible studies.

Study Source of sample Sample size ( n ) Age (years) Intervention (type) Mode, frequency and duration Outcomes
T C
Cai et al. (2023) Chronic physical illness 47 67.79 ± 5.59 Baduanjin Cognitive training Exercise class:
60 min × 2 times per week × 12 weeks
Subjective
well-being
Carcelén-Fraile et al. (2022) Postmenopausal women 117 69.73 ± 6.44 Baduanjin Daily activities Exercise class:
60 min × 2 times per week, 12 weeks
Anxiety, depression
Chan, Yu & Choi (2017) Hidden elderly 46 77.31 ± 7.46 Tai chi Usual care Exercise class:
60 min × 2 times per week × 12 weeks
self-practice:
30 min × 1 time per day × 12 weeks
Anxiety, depression,
self-esteem
Chen et al. (2024) Chronic obstructive pulmonary disease 472 61.9 ± 10.66 Baduanjin 1. usual care
2. conventional rehabilitation
Self-practice:
30 min × 10 times per week × 24 weeks
Anxiety, depression
Cheng et al. (2012) Mild dementia 36 81.8 ± 6.36 Tai chi 1. placebo
2. mahjong
Exercise class:
60 min × 3 times per week × 12 weeks
Depression
Chou et al. (2004) Depressive disorders 14 72.6 ± 4.2 Tai chi Wait-list Exercise class:
45 min × 3 times per week × 12 weeks
Depression
Ge et al. (2021) Pre-frail elderly people 65 71.56 ± 6.16 Tai chi Usual care Exercise class:
60 min × 3 times per week × 8 weeks
Depression
He et al. (2024a) Sleep disturbances 38 69.24 ± 4.72 Tai chi Usual treatments Exercise class:
60 min × 3 times per week × 4 weeks
Anxiety, depression
He et al. (2024b) Sleep disturbances 152 67.68 ± 4.98 Tai chi Low-intensity physical exercise Exercise class:
60 min × 3 times per week × 4 weeks
Anxiety, depression
Hsu et al. (2016) Long-term care residents 60 81.25 ± 8.12 Tai chi Usual care Exercise class:
40 min × 3 times per week × 26 weeks
Depression
Huang et al. (2019) Mild dementia 80 81.9 ± 6.01 Tai chi Usual treatments Exercise class:
20 min × 3 times per week × 40 weeks
Depression
Huang et al. (2025) Depressive symptoms 240 69.58 ± 6.95 Tai chi Aerobic exercise Exercise class:
60 min × 3 times per week × 12 weeks
Depression
Irwin et al. (2014) Insomnia 123 65.55 ± 6.97 Tai chi 1. sleep seminar
2. cognitive training
Exercise class:
120 min × 3 times per week × 16 weeks
Depression
Jing et al. (2018) Elderly housebound 79 75.16 ± 6.04 Baduanjin Cognitive training Exercise class:
60–90 min × 1 time every two weeks × 12 weeks
Depression
Kerkez & Erci (2024) General elderly 114 71.34 ± 4.14 Tai chi Non-intervention Exercise class:
35–40 min × 3 times per week × 6 weeks
Depression
Kilpatrick et al. (2022) Depressive disorders 40 67.62 ± 6.47 Tai chi Health education Exercise class:
60 min × 1 time per week × 12 weeks
self-practice:
20 min × 1 time per day × 12 weeks
Depression
Krause-Sorio et al. (2024) Depressive disorders 49 67.98 ± 6.12 Tai chi Health education Exercise class:
60 min × 1 time per week × 12 weeks
self-practice:
20 min × 1 time per day × 12 weeks
Anxiety, depression
Kutner et al. (1997) Healthy older adults 130 76.2 Tai chi 1. health education
2. balance training
Exercise class:
45 min × 2 times per week × 15 weeks
Self-esteem
Lam et al. (2012) Cognitive decline 389 77.82 ± 6.48 Tai chi Stretching and toning exercise Exercise class:
30 min × 3 times per week × 48 weeks
Depression
Lee et al. (2019) Chronic physical illness 30 >60 Baduanjin Cognitive training Exercise class:
2 times per week × 12 weeks
Anxiety, depression, well-being
Liang et al. (2020) Elderly housebound 48 71.88 ± 4.44 Tai chi 1. exercise advice
2. exercise snacking
Self-practice:
5 min × 2 times per day × 4weeks
Anxiety, depression
Liu et al. (2018) Depressive disorders 60 61.31 ± 3.92 Tai chi Normal lifestyle Exercise class:
60 min × 3 times per week × 24 weeks
Depression
Luo et al. (2023) moderate to severe COPD 226 67.74 ± 6.95 Tai chi conventional therapy, exercise advice, and health education Self-practice:
30 min × 5 times per week × 52 weeks
Anxiety, depression
Ma et al. (2018) hypertension 158 69.98 ± 10.52 Tai chi Usual care Exercise class:
90 min × 2 times per week × 5 weeks
self-practice:
60 min/ session, 3–5 session/week, 24 weeks
Depression
Martínez et al. (2014) care rehabilitation facility 58 74.3 ± 8.2 Liuzijue Usual care and rehabilitation Exercise class:
90 min × 2 times per week × 4 weeks
Depression
Qiu et al. (2024) private medical centre 200 60-66 Tai chi Non-intervention Exercise class:
1 time per week × 24 weeks
Depression
Moon et al. (2020) Parkinson’s disease 17 66.14 ± 6.58 Liuzijue Sham qigong Exercise class:
45–60 min × 1 time per week × 12 weeks,
self-practice:
15–20 min × 2 times per day × 12 weeks
Anxiety, depression
Noradechanunt, Worsley & Groeller (2017) Sedentary elderly 39 66.6 ± 6.7 Tai chi 1. exercise advice
2. Thai Yoga
Exercise class:
90 min × 2 times per week × 12 weeks
self-practice:
20 min × 1 time every other day × 12 weeks
Depression
Redwine et al. (2020) Heart failure 69 65 ± 10 Tai chi 1. usual treatments
2.resistance band exercise
Exercise class:
45–60 min × 3 times per week × 16 weeks,
self-practice:
10–20 min × 1 time per non-class day × 12 weeks
Depression
Roswiyani et al. (2019) Nursing homes 195 73.44 ± 9.13 Baduanjin 1. non-intervention
2. art activities
Exercise class:
90 min × 2 times per week × 8 weeks
Depression
Solianik et al. (2021) General elderly 30 60–78 Tai chi Non-intervention Exercise class:
60 min × 2 times per week × 10 weeks
Anxiety, depression
Su, Wang & Meng (2021) Memory complaints 65 64.89 ± 6.41 Baduanjin Gymnastics practice Exercise class:
60 min × 5 times per week × 12 weeks
Self-efficacy
Taylor-Piliae et al. (2014) Stroke survivors 145 69.9 ± 10 Tai chi 1. usual care
2. strength and movement exercises
Exercise class:
60 min × 3 times per week × 12 weeks
Depression
Tousignant et al. (2012) High risk for a fall 152 79.9 ± 6.2 Tai chi Usual rehabilitation Exercise class:
60 min × 2 times per week × 15 weeks
Self-efficacy
Tsang et al. (2003) Chronic physical illnesses 50 74.67 ± 9.03 Baduanjin Usual rehabilitation Exercise class:
60 min × 2 times per week × 12 weeks
Depression
Tsang et al. (2006) Depressive disorders and chronic medical illnes 82 82.37 ± 7.01 Baduanjin Newspaper reading Exercise class:
45–60 min × 3 times per week × 16 weeks
self-practice:
15 min × 1 time per day × 16 weeks
Depression, self-efficacy, subjective well-being
Tsang et al. (2013) Depressive disorders and chronic medical illnes 38 80.11 ± 5.63 Baduanjin Newspaper reading Exercise class:
45 min × 3 times per week × 12 weeks
Depression, self-efficacy,
Wang et al. (2010) Cerebral
vascular disorder
34 77.06 ± 10.95 Tai chi Usual rehabilitation Exercise class:
50 min × 1 time per week × 12 weeks
Anxiety, depression
Wang et al. (2023) General elderly 80 60–69 Tai chi Normal lifestyle Exercise class:
60 min × 4 times per week × 12 weeks
Subjective well-being
Wu et al. (2017) High risk for a fall 120 65–80 Baduanjin Normal lifestyle Exercise class:
2 times per day × 4weeks
Anxiety
Xiao et al. (2023) General elderly 56 68.85 ± 5.02 Yijinjing Normal lifestyle Exercise class:
40 min × 3 times per week × 8 weeks
Self-esteem
Ying, Shen & Wang (2019) Insomnia 74 71.93 ± 3.67 Baduanjin Walking exercise Exercise class:
60 min × 5 times per week × 12 weeks
Anxiety

Notes.

T
TCEs group
C
Control group
COPD
Chronic obstructive pulmonary disease