Bergström I et al. - There is no evidence-based therapy for women with idiopathic osteoporosis. It is therefore important to elucidate the impact of moderate physical activity in this group of patients. Methods
A study to investigate whether moderate physical training can improve the bone mineral density (BMD) in women with idiopathic osteoporosis
10 pre-menopausal women (age: 24–44 yrs) diagnosed with idiopathic osteoporosis were enrolled
The physical training program: 3 fast 30-min walks plus 1 or 2 sessions of 1-h training/wk during 1 yr
All pts were given supplements of vitamin D and calcium
BMD was measured in the femoral neck area and the lumbar spine by dual energy X-ray absorptiometry
The measurements were performed at baseline and after 12 mos of training
They were compared with the measurements at the time of diagnosis, 1–3 yrs before the study
Results
Mean BMD in 8 women who fulfilled 12 mo training had BMD at start 0.88 (0.08) g/cm2 in the spine and 0.76 (0.13) g/cm2 in the femoral neck
The mean spine BMD increase was 0.031 g/cm2 (3.5%) after 1 yr of training
The mean increment in BMD in the femoral neck was 0.007 g/cm2 (0.9%) after the intervention
However, the bone loss during the 1- to 3-yr period from diagnosis to study start was, on average, 0.045 g/cm2 or 5.0% in the femoral neck thus indicating a positive indirect effect of the intervention
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