Exercise and Bone Mineral Density in Premenopausal Women: A Meta-Analysis of Randomized Controlled Trials
Table 2
Initial physical characteristics of participants.
Variable
Exercise
Control
Groups (#)
Participants (#)
Mdn
Range
Groups (#)
Participants (#)
Mdn
Range
Age (yrs)
10
269
30.7 ± 5.5
31
23–39
7
252
32.8 ± 5.2
34
24–39
Body weight (kg)
10
269
62.1 ± 8.1
60
55–82
7
252
65.3 ± 7.5
63
58–81
BMD (g/cm2)
Femoral neck
7
224
0.927 ± 0.085
0.840
0.85–1.070
6
233
0.938 ± 0.105
0.909
0.840–1.090
Lumbar spine
7
224
1.118 ± 0.120
1.080
0.991–1.290
6
233
1.145 ± 0.138
1.145
0.986–1.30
Ward’s triangle
4
81
0.882 ± 0.062
0.863
0.883–0.970
3
81
0.911 ± 0.082
0.896
0.833–0.970
Trochanteric
6
196
0.775 ± 0.099
0.735
0.688–0.939
5
206
0.786 ± 0.10
0.765
0.690–0.909
Groups (#): number of groups in which data were available; participants (#): number of participants nested within groups; ± SD: mean ± standard deviation; Mdn: median; BMD: bone mineral density.
