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Link to original content: http://pubmed.ncbi.nlm.nih.gov/21892676/
Effect of supervised and home exercise training on bone mineral density among breast cancer patients. A 12-month randomised controlled trial - PubMed Skip to main page content
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Randomized Controlled Trial
. 2012 May;23(5):1601-12.
doi: 10.1007/s00198-011-1761-4. Epub 2011 Sep 3.

Effect of supervised and home exercise training on bone mineral density among breast cancer patients. A 12-month randomised controlled trial

T Saarto  1 , H Sievänen, P Kellokumpu-Lehtinen, R Nikander, L Vehmanen, R Huovinen, H Kautiainen, S Järvenpää, H M Penttinen, M Utriainen, A S Jääskeläinen, A Elme, J Ruohola, T Palva, H Vertio, M Rautalahti, M Fogelholm, R Luoto, C Blomqvist
Affiliations
Randomized Controlled Trial

Effect of supervised and home exercise training on bone mineral density among breast cancer patients. A 12-month randomised controlled trial

T Saarto et al. Osteoporos Int. 2012 May.

Abstract

The ability of combined step aerobic- and circuit-training to prevent bone loss after breast cancer treatments was related to skeletal site and patients' menopausal status. Among premenopausal breast cancer survivors, a 12-month exercise intervention completely prevented bone loss at the femoral neck, whereas no exercise effect was seen at lumbar spine or at neither site in postmenopausal women.

Introduction: The primary objective of this randomised clinical trial was to determine the preventive effect of supervised weight-bearing jumping exercises and circuit training on bone loss among breast cancer patients.

Methods: Of 573 breast cancer survivors aged 35-68 years randomly allocated into exercise or control group after adjuvant treatments, 498 (87%) were included in the final analysis. The 12-month exercise intervention comprised weekly supervised step aerobic- and circuit-exercises and similar home training. Bone mineral density (BMD) at lumbar spine and femoral neck were measured by dual-energy X-ray absorptiometry. Physical performance was assessed by 2-km walking and figure-8 running tests, and the amount of physical activity was estimated in metabolic equivalent-hours/week.

Results: In premenopausal women, bone loss at the femoral neck was prevented by exercise, the mean BMD changes being -0.2% among the trainees vs. -1.4% among the controls (p = 0.01). Lumbar bone loss could not be prevented (-1.9% vs. -2.2%). In postmenopausal women, no significant exercise-effect on BMD was found either at the lumbar spine (-1.6% vs. -2.1%) or femoral neck (-1.1% vs. -1.1%).

Conclusions: This 12-month aerobic jumping and circuit training intervention completely prevented femoral neck bone loss in premenopausal breast cancer patients, whereas no effect on BMD was seen in postmenopausal women.

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