Table 1 Characteristics of study participants at baseline randomized to both the usual care control group and the Tai Chi intervention.
Variable | Randomized to Usual Care (n = 43) | Randomized to Tai Chi (n = 43) | Per Protocol Tai Chi (n = 26) |
|---|---|---|---|
Age in years (mean ± SD (range)) | 60.4 ± 5.3 (46-70) | 58.8 ± 5.6 (43-70) | 59.1 ± 4.9 (51-68) |
Race: n (%) | Â | Â | Â |
White | 36 (84) | 37 (86) | 21 (88) |
African American | 2 (5) | 4 (9) | 2 (8) |
Asian | 3 (7) | 1 (2) | 0 (0) |
Other | 2 (5) | 1 (2) | 1 (4) |
Education: n(%) | Â | Â | Â |
High School/GED | 4 (9) | 1 (2) | 0 |
Some College | 5 (12) | 3 (7) | 1 (4) |
College | 13 (30) | 15 (35) | 8 (33) |
Graduate degree | 21 (49) | 24 (56) | 15 (63) |
BMI in kg/m2 (mean ± SD) | 24.5 ± 4.0 | 25.8 ± 4.2 | 25.8 ± 3.8 |
Years post-menopause, n (%) | Â | Â | Â |
1-7 | 18 (42) | 24 (56) | 12 (50) |
> 7 | 18 (42) | 12 (28) | 7 (29) |
unknown | 7 (16) | 7 (16) | 5 (21) |
Calcium supplementation, n (%) | Â | Â | Â |
Yes | 34 (79) | 34 (79) | 19 (79) |
No | 8 (19) | 7 (16) | 3 (13) |
unknown | 1 (2) | 2 (5) | 2 (8) |
BMD in g/cm2 (mean ± SD): |  |  |  |
Femoral neck | 0.692 ± 0.068 | 0.680 ± 0.063 | 0.685 ± 0.074 |
Total hip | 0.837 ± 0.077 | 0.829 ± 0.073 | 0.832 ± 0.079 |
Spine | 0.901 ± 0.128 | 0.898 ± 0.070 | 0.898 ± 0.076 |
Serum bone turnover markers (mean ± SD) |  |  |  |
CTX ng/ml | 0.603 ± 0.231 | 0.554 ± 0.259 | 0.594 ± 0.300 |
OSC ng/ml | 15.52 ± 4.94 | 16.29 ± 6.01 | 17.11 ± 7.02 |
Physical activity (PAR, kcal/kg/d) (mean ± SD) | 144.5 ± 43.6 | 128.0 ± 38.4 | 123.9 ± 26.9 |
SF-36 (mean ± SD): |  |  |  |
Physical | 53.2 + 5.6 | 53.5 + 6.1 | 51.9 + 6.8 |
Mental | 55.8 + 4.8 | 52.0 + 7.7 | 53.7 + 7.0 |
Expectancy (mean ± SD)*: |  |  |  |
Q.1: 'Improving your health' | 3.79 + 0.80 | 3.88 + 1.12 | 3.92 + 1.38 |
Q.2: 'Recommend to a friend' | 3.67 + 1.13 | 3.60 + 1.69 | 3.67 + 1.74 |
Q.3: 'Makes sense to you' | 4.09 + 0.97 | 4.19 + 1.10 | 4.21 + 1.32 |