Table 1.
Randomized controlled trials investigating the effects of Tai Chi on glycemic control, insulin resistance, and cognitive function in patients with type 2 diabetes
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Ref.
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Country
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Study design
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Study period (follow-up period)
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Subjects (baseline characteristics)
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Study outcomes
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Intervention/Control
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Results
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| Chan et al[6], 2018 | China | Three-arm, randomized, controlled, parallel-group trial | 12 wk (9 month) | 246 patients with T2D. Tai Chi group (32 men and 50 women): Age: 64.70 ± 7.59 years, BMI: 26, 38 ± 4.26 kg/m2, HbA1c: 6.66% ± 1.17% | Primary outcome: Blood pressure Secondary outcomes: BMI, waist circumference, aerobic endurance, fasting blood glucose, HbA1c, TC, TG, HDL-C, LDL-C, perceived stress, quality of life, exercise self-efficacy |
Tai Chi/brisk walking/usual physical activity | Blood pressure↓1. Fasting blood glucose↓, HbA1c↓, perceived stress↓. Exercise self-efficacy↑2 |
| Walking group (42 men and 40 women): Age: 63.22 ± 11.11 years, BMI: 25.90 ± 4.39 kg/m2, HbA1c: 7.10% ± 1.61% | |||||||
| Control group (38 men and 44 women): Age: 65.13 ± 10.22 years, BMI: 25.72 ± 4.04 kg/m2, HbA1c: 6.87 %± 1.25% | |||||||
| Li et al[7], 2020 | China | Three-arm, randomized, controlled, parallel-group trial | 12 wk | 87 patients with T2D. Tai Chi group (12 men and 12 women): Age: 61.71 ± 6.91 years, BMI: 24.04 ± 2.98 kg/m2, HbA1c: 8.20% ± 2.46% | Primary outcome: Fasting blood glucose, HbA1c, C-peptide | Tai Chi/Qigong/stretching exercise | Fasting blood glucose→3, HbA1c↑, C-peptide↓ |
| Qigong group (21 men and 13 women): Age: 59.71 ± 6.67 years, BMI: 25.21 ± 2.71 kg/m2, HbA1c: 7.99% ± 1.66% | |||||||
| Control group (14 men and 15 women): Age: 58.66 ± 10.89 years, BMI: 25.69 ± 2.57 kg/m2, HbA1c: 7.63% ± 1.74% | |||||||
| Chen et al[9], 2023 | China | Three-arm, randomized, controlled, parallel-group trial | 24 wk (36 wk) | 328 patients with T2D. Tai Chi group (49 men and 58 women): Age: 67.56 ± 4.99 years, BMI: 24.32 ± 3.03 kg/m2, HbA1c: 7.04% ± 1.20% | Primary outcome: MoCA assessment at 36 wk. Secondary outcomes: MoCA assessment at 24 wk, cognitive subdomain tests, fasting blood glucose, HbA1c, AGE, sRAGE, HOMA-IR |
AE + RT/usual care | MoCA score at 36 wk↑ vs fitness walking group: (at 24 wk). Fasting blood glucose→, HbA1c→, HOMA-IR→, AGE: sRAGE ratio→. (at 36 wk) Fasting blood glucose↓, HbA1c→, HOMA-IR→, AGE: sRAGE ratio↓ vs control group: (at 24 wk) Fasting blood glucose→, HbA1c→, HOMA-IR→, AGE: sRAGE ratio→. (at 36 wk) Fasting blood glucose↓, HbA1c→, HOMA-IR→, AGE: SRAGE ratio↓ |
| Fitness walking group (61 men and 49 women): Age: 67.46 ± 4.73 years, BMI: 23.86 ± 2.90 kg/m2, HbA1c: 6.84% ± 1.41% | |||||||
| Control group (51 men and 60 women): Age: 67.62 ± 5.35 years, BMI: 23.98 ± 3.40 kg/m2, HbA1c: 7.14% ± 1.48% |
1
Decreased.
2
Increased/improved.
3
Unchanged.
BMI: Body mass index; HbA1c: Hemoglobin A1c; TC: Total cholesterol; TG: Triglycerides; HDL-C: High-density lipoprotein cholesterol; LDL-C: Low-density lipoprotein cholesterol; MoCA: The Montreal Cognitive Assessment; AGE: Advanced glycation end products; sRAGE: Soluble receptor of advanced glycation end products; T2D: Type 2 diabetes; HOMA-IR: Homeostasis model assessment-insulin resistance.