Navigation Links
Just How Might Exercise Lower Breast Cancer Risk?

WEDNESDAY, May 8 (HealthDay News) -- Exercise appears to change the way women's bodies metabolize the hormone estrogen, and this could help explain how aerobic activity reduces a woman's breast cancer risk, a new study suggests.

Previous research has suggested that exercise lowers breast cancer risk, but there haven't been any clinical studies that explain the mechanism behind this, said Mindy Kurzer, a professor in the department of food science and nutrition at the University of Minnesota in Saint Paul.

"Ours is the first study to show that aerobic exercise influences the way our bodies break down estrogens to produce more of the 'good' metabolites that lower breast cancer risk," she said.

The study included nearly 400 healthy, but inactive young women who were divided into two groups. All were premenopausal, meaning their bodies still produced the hormone estrogen.

One group remained inactive while the other group did 30 minutes of moderate-to-vigorous aerobic exercise five times a week for 16 weeks. For their workouts, they used equipment such as treadmills, stair steppers and elliptical machines.

Before and after those 16 weeks, the researchers collected urine samples from women in both groups. At the end of the study, the women in the exercise group had higher levels of the estrogen metabolites that reduce breast cancer risk.

The study was published May 7 in the journal Cancer Epidemiology, Biomarkers & Prevention.

"Exercise, known to favor fitness and improve heart health, is also likely to help prevent breast cancer by altering estrogen metabolism," Kurzer said in a news release from the American Association for Cancer Research. "It is very important, however, to decipher the biological mechanisms behind this phenomenon."

She is currently conducting similar studies in women at high risk for breast cancer.

More information

The U.S. National Cancer Institute has more about breast cancer prevention.

-- Robert Preidt

SOURCE: American Association for Cancer Research, news release, May 7, 2013

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Programming Implanted Defibrillators to React More Slowly Might Be Safer: Study
2. For Pregnant Smokers, Vitamin C Might Help Babies Lungs
3. Cholesterol Drugs Might Boost Kidney Cancer Survival
4. Some Blackboard Chalks Might Spur Allergies in Kids: Study
5. Mediterranean Diet Might Help Stave Off Dementia
6. Do you obsess over your appearance? Your brain might be wired abnormally
7. Frequently used biologic agents might cause acute liver injury
8. Your Autoantibody Profile Might Someday Help Spot Illness
9. Mindfulness therapy might help veterans with combat-related post-traumatic stress disorder
10. Some types of papilloma virus might prevent cervical cancer
11. Smog Exposure During Pregnancy Might Raise Childs Cancer Risk: Study
Post Your Comments:
Related Image:
Just How Might Exercise Lower Breast Cancer Risk? 
(Date:11/30/2015)... ... 30, 2015 , ... Until now, the St. Louis Fetal Care Institute ... of Myelomeningocele Study) trial. One of these exclusion criteria was a BMI above 34.9. ... to 24.9 is considered normal, 25 - 29.9 is overweight and above 30 is ...
(Date:11/30/2015)... ... November 30, 2015 , ... Thermi™, a world ... announce that its ThermiRFR temperature controlled radiofrequency platform has received CE marking and ... platform which uses temperature as a clinical endpoint. The technology has been ...
(Date:11/30/2015)... ... November 30, 2015 , ... The world of hair transplants and restoration is ... These techniques and procedures have been in use for many years and are among ... Parsa Mohebi, M.D. has utilized many of these methods over the years, he also ...
(Date:11/30/2015)... ... November 30, 2015 , ... The presidential race normally ... styling. So why is it a national news story when Donald Trump makes disparaging ... M.D., because appearances count more than anyone wants to admit when it comes to ...
(Date:11/30/2015)... , ... November 30, 2015 , ... According to Los ... people to overeat are not necessarily caused by real hunger, but instead by ... needs food. He notes that, while many patients are aware that weight loss surgery ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... 2015   Royal Philips  (NYSE: PHG ... Radiology Solutions, a fully integrated, consultative approach to ... data-driven practice management approaches that combine imaging systems, ... improve care delivery and reduce costs. Making its ... North America Annual Meeting (RSNA) in ...
(Date:11/30/2015)... -- global cell culture market is expected to ... by 2022 at a CAGR of 7.1% therein. --> ... 2013 value of US$6.1 bn to US$11.3 bn by 2022 at ... has announced the release of a new market research study, detailing ... Culture Market - Global Industry Analysis, Size, Share, Growth, Trends and ...
(Date:11/30/2015)... , Nov. 30, 2015   Royal Philips ... Implant, the industry,s first MRI guided user interface and ... of patients with MR Conditional implants, such as knee ... 2015 Radiological Society of North America Annual Meeting ... and supports diagnostic confidence of this growing patient population. ...
Breaking Medicine Technology: