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The effect of exercise on body composition and bone mineral density in breast cancer survivors taking aromatase inhibitors.


ABSTRACT:

Objective

This study examined the effect of 12 months of aerobic and resistance exercise versus usual care on changes in body composition in postmenopausal breast cancer survivors taking aromatase inhibitors (AIs).

Methods

The Hormones and Physical Exercise study enrolled 121 breast cancer survivors and randomized them to either supervised twice-weekly resistance exercise training and 150 min/wk of aerobic exercise (N = 61) or a usual care (N = 60) group. Dual-energy X-ray absorptiometry scans were conducted at baseline, 6 months, and 12 months to assess changes in body mass index, percent body fat, lean body mass, and bone mineral density.

Results

At 12 months, the exercise group relative to the usual care group had a significant increase in lean body mass (0.32 vs. -0.88 kg, P = 0.03), a decrease in percent body fat (-1.4% vs. 0.48%, P = 0.03), and a decrease in body mass index (-0.73 vs. 0.17 kg/m2 , P = 0.03). Change in bone mineral density was not significantly different between groups at 12 months (0.001 vs. -0.006 g/cm2 , P = 0.37).

Conclusions

A combined resistance and aerobic exercise intervention improved body composition in breast cancer survivors taking AIs. Exercise interventions may help to mitigate the negative side effects of AIs and improve health outcomes in breast cancer survivors.

SUBMITTER: Thomas GA 

PROVIDER: S-EPMC5450163 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature

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Publications

The effect of exercise on body composition and bone mineral density in breast cancer survivors taking aromatase inhibitors.

Thomas Gwendolyn A GA   Cartmel Brenda B   Harrigan Maura M   Fiellin Martha M   Capozza Scott S   Zhou Yang Y   Ercolano Elizabeth E   Gross Cary P CP   Hershman Dawn D   Ligibel Jennifer J   Schmitz Kathryn K   Li Fang-Yong FY   Sanft Tara T   Irwin Melinda L ML  

Obesity (Silver Spring, Md.) 20161227 2


<h4>Objective</h4>This study examined the effect of 12 months of aerobic and resistance exercise versus usual care on changes in body composition in postmenopausal breast cancer survivors taking aromatase inhibitors (AIs).<h4>Methods</h4>The Hormones and Physical Exercise study enrolled 121 breast cancer survivors and randomized them to either supervised twice-weekly resistance exercise training and 150 min/wk of aerobic exercise (N = 61) or a usual care (N = 60) group. Dual-energy X-ray absorpt  ...[more]

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