A Randomized Controlled Trial of Whole Body Vibration Exposure on Markers of Bone Turnover in Postmenopausal Women
Table 1
Demographics and health status.
Variable
Whole cohort ()
Sham ()
1×/wk ()
3×/wk ()
Age (yrs)
59.8 ± 6.2
59.8 ± 5.2
60.9 ± 6.5
58.9 ± 7.1
Height (cm)
160.2 ± 5.8
156.9 ± 4.9
162.5 ± 4.6
161.6 ± 6.2
Body weight (kg)
62.80 (51.7–96.7)
62.15 (54.10–71.20)
64.67 (57.20–96.77)
62.88 (51.70–78.57)
Body mass index (kg/m2)§
24.38 (20.76–37.33)
25.22 (23.191–27.79)
24.64 (20.76–37.33)
23.62 (21.09–32.70)
History of smoking (%)
32.6
28.6
31.3
37.5
Number of medications/day
3.3 ± 2.6
3.2 ± 3.2
3.8 ± 3.3
2.5 ± 3.5
Vitamin D prescription (%)
17.4
12.5
14.3
25.0
Calcium prescription (%)
43.5
50.0
28.6
50.0
Bisphosphonate prescription (%)
13.0
6.3
14.3
18.8
HRT prescription (%)
8.7
0.0
14.3
12.5
Years since menopause
7.25 (2.00–37.00)
9.75 (2.00–30.00)
6.25 (3.50–37.00)
6.50 (2.50–31.00)
Participation in regular structured exercise (%)
71.7
68.8
71.4
75.0
History of osteoporosis, osteopenia, or osteoporotic fracture
30.4
18.8
28.6
43.8
All data presented as mean ± SD for normally distributed data or median (range) for nonnormally distributed data unless otherwise specified. §Body mass index: an indicator of body fat calculated by weight (kg)/Height (m)2. Normal values range from 18.5 to 24.9 kg/m2. Values ≥25 kg/m2 are considered overweight and ≥30 kg/m2 obese.
