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Table 2 The effects of Tai Chi on weight and BMI change of participants

From: Comparison of the effects of Tai Chi and general aerobic exercise on weight, blood pressure and glycemic control among older persons with depressive symptoms: a randomized trial

Variables All (n = 238) Tai Chi group (n = 120) Aerobic exercise group (n = 118) t/Z P value
Weight (kg)
  At baseline 60.0 (13.0) 60.0 (13.0) 60.0 (14.3) -0.705 0.481
  Week 12 55.0 (10.0) 55.0 (10.0) 55.0 (10.0) -0.366 0.714
  Weight difference 3.0 (3.0) 4.0 (3.0) 2.0 (2.0) -4.930  < 0.001
BMI (kg/m2)
  At baseline (Mean ± SD) a 23.26 ± 3.35 23.54 ± 0.34 22.97 ± 0.27 1.297 0.196
  Week 12 21.85 (3.71) 21.48 (4.03) 22.16 (3.31) -0.616 0.538
  BMI difference 1.06 (1.10) 1.60 (1.15) 0.83 (0.80) -5.046  < 0.001
  1. Note: SD Standard deviation, BMI Body mass index
  2. a BMI (at baseline) was described as Mean ± SD, other variables were described as median and inter-quartile
  3. Independent t-test and Mann–Whitney U test were used