Navigation Links
Reduced breast cancer risk: Physical activity after menopause pays off
Date:1/15/2009

Several studies had previously suggested that regular physical exercise reduces the breast cancer risk of women. However, it had been unknowned just how much exercise women should take in which period in life in order to benefit from this protective effect. Moreover, little was known about which particular type of breast cancer is influenced by physical activity.

Answers to these questions are now provided by the results of the MARIE study, in which 3,464 breast cancer patients and 6,657 healthy women between the ages of 50 and 74 years were questioned in order to explore the connections between life style and breast cancer risk. Participants of the study, which was headed by Professor Dr. Jenny Chang-Claude and conducted at the German Cancer Research Center and the University Hospitals of Hamburg-Eppendorf, were questioned about their physical activity during two periods in life: from 30 to 49 years of age and after 50.

A comparison between control subjects and breast cancer patients showed that women in the control group had been physically more active than patients. The scientists calculated the relative breast cancer risks taking account of the effect of other risk factors. Results show that the risk of developing breast cancer after menopause was lower by about one third in the physically most active MARIE participants compared to women who had generally taken little physical exercise.

For this reduced risk it is not necessary to work out hard at the gym. The women in the physically most active group, for example, walked for two hours every day and cycled for one hour, while the most inactive study participants walked for only about 30 minutes every day. The epidemiologists also discovered that physical activity in the postmenopausal period is particularly beneficial for reducing breast cancer risk.

A closer look at the types of breast cancer revealed that physically active women are less frequently affected, in particular, by tumors that form receptors for the two female sexual hormones, estrogen and progesterone. These malignant 'hormone receptor positive tumors' accounted for 62.5 percent of breast cancers among MARIE participants. Other tumor markers, such as HER2 receptor formation or differentiation stage of cancer cells, were found to be unrelated to physical activity.

The effect of physical activity was independent of weight gain, total energy intake or body mass index. Therefore, researchers assume that physical exercise reduces the risk of cancer through hormonal mechanisms instead merely by a reduction of body fat or other changes in physical constitution, as it has often been assumed.

"It doesn't always have to be sports," says Associate Professor Dr. Karen Steindorf of DKFZ, who has headed this analysis. "In our calculations we have also taken account of activities such as gardening, cycling or walking to the shops. Our advice to all women is therefore to stay or become physically active also in the second half of your life. You will not only reduce your risk of breast cancer, but it has been proven that your bones, heart and brain also benefit from it."


'/>"/>

Contact: Dr. Sibylle Kohlstdt
s.kohlstaedt@dkfz.de
Helmholtz Association of German Research Centres
Source:Eurekalert

Related medicine news :

1. AHP Recession Survey of Nonprofit Health Care Officials Finds Almost Half Expect Reduced Giving in 2009, Leading to Cuts in Hospital Construction and Equipment Purchases
2. Photo: New Yale University Prevention Research Center Study Finds Flat Belly Diet! Reduced Dangerous Visceral Belly Fat by 33%
3. Lazy eye treatment times could be drastically reduced, new research shows
4. Angled gantry technique reduced breast radiation exposure by 50 percent
5. Exposure to secondhand smoke reduced
6. MRSA and C. difficile Infections Reduced by 50% in Hospital Study
7. New Study Data: JANUVIA™ (sitagliptin) Significantly Reduced Blood Sugar Levels and Was Not Associated with Hypoglycemia in Elderly Patients with Type 2 Diabetes
8. Dual treatment for stroke leads to improved recovery rates, reduced mortality
9. Calcium plus vitamin D supplementation is not associated with a reduced breast cancer risk
10. Statins Reduced Death Risk From Pneumonia
11. AUDIO from Medialink and Genzyme: Study in New England Journal of Medicine Shows Investigational Compound Reduced Relapses and Disability in Patients With MS
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... "FCPX editors can now reveal their ... Cut Pro X," said Christina Austin - CEO of Pixel Film Studios. , ... Pro X users can now reveal the media of their split screens with ...
(Date:6/27/2016)... Overland Park, KS (PRWEB) , ... June 27, 2016 , ... ... leader in retailers of Eyeglasses . , Millions of individuals in the United ... life, eyeglasses have become a way to both correct vision and make a fashion ...
(Date:6/26/2016)... North Carolina (PRWEB) , ... June 26, 2016 , ... ... release of a new product that was developed to enhance the health of felines. ... for centuries. , The two main herbs in the PawPaws Cat Kidney Support ...
(Date:6/25/2016)... Austin, TX (PRWEB) , ... June 25, 2016 , ... ... Fellow of the American College of Mohs Surgery and to Dr. Russell Peckham for ... popular and highly effective treatment for skin cancer. The selective fellowship in Mohs Micrographic ...
(Date:6/25/2016)... Long Beach, CA (PRWEB) , ... June 25, 2016 , ... ... from UCLA with Magna Cum Laude and his M.D from the David Geffen School ... San Diego and returned to Los Angeles to complete his fellowship in hematology/oncology at ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... Story Highlights: ... the health care industry is causing providers to review ... Deloitte offers a suite of solutions for health care ... cost optimization: labor resource analysis, revenue cycle optimization and ... outcomes and better economics ...
(Date:6/24/2016)... June 24, 2016 ... announced the addition of the " Global Markets ... This report focuses ... an updated review, including its applications in various applications. ... market, which includes three main industries: pharmaceutical and biotechnology, ...
(Date:6/24/2016)... -- Research and Markets has announced the addition ... report to their offering. ... The World Market for Companion Diagnostics covers the world ... in the report includes the following: , ... by Region (N. America, EU, ROW), 2015-2020 , World ...
Breaking Medicine Technology: