Physical activity may prevent breast cancer in some womenMay 13th, 2008 - 12:46 pm ICT by admin
London, May 13 (ANI): A new study has found that women who engage in physical activity are 25 per cent less likely to develop breast cancer.
However, researchers also discovered that certain groups are more likely to see these benefits than others.
The findings showed that the type of activity undertaken, at what time in life and the womans body mass index (BMI) will determine how protective the activity is against the disease.
Lean women who play sport or undertake other physically active things in their spare time, particularly if they have been through the menopause, have the lowest risk of breast cancer, the study found.
The researchers reviewed the literature and analysed 62 studies looking at the impact of physical activity on breast cancer risk.
They then examined the findings to find out how breast cancer risk appeared to be affected by type of activity, intensity of activity, when in life the activity was performed and other factors.
They found that overall, women who were the most physically active had about a 25 per cent reduced risk of developing the disease versus women who were the least active, reports the British Medical Journal.
Even though vigorous, recreational exercise was linked to the greatest reduction in risk, moderate activity, work-related activity and household chores all lowered the risk for breast cancer.
Women who had undertaken a lot of physical activity throughout their life had the lowest risk of breast cancer, and activity performed after the menopause had a greater effect than that performed earlier in life.
Physical activity reduced breast cancer risk in all women except the obese and had the greatest impact in lean women.
Women who were mothers, had no family history of breast cancer, were not white and had oestrogen receptor negative tumours also had a reduced risk of breast cancer.
The authors said the way in which physical activity protected against breast cancer was likely to be complex and may involve effects on sex hormones, insulin-related factors, the immune system and other hormone and cellular pathways.
The study is published online ahead of print in the British Journal of Sports Medicine. (ANI)
- Avoidable breast cancer risk factors identified - Jan 19, 2011
- Starting hormone therapy at menopause 'ups breast cancer risk' - Jan 29, 2011
- 10 tips to steer clear of breast cancer - Oct 03, 2010
- Body fat distribution linked to a higher risk of ER-negative breast cancer - Dec 16, 2010
- Hot flushes tied to lower risk of breast cancer - Jan 26, 2011
- Exercise cuts bowel cancer risk, shows study - Jan 04, 2012
- Breast cancer survivors with physical limitations more likely to die - Sep 25, 2010
- Hormone replacement therapy tied to breast cancer - Dec 30, 2011
- Study clears misconception linked to joint pain from breast cancer drugs - Nov 08, 2010
- Growth hormone 'leads to breast cancer' - May 17, 2010
- Withdrawing HRT from women cuts breast cancer risk, shows study - Sep 24, 2010
- Drop in breast cancer rates linked to reduced hormone therapy - Dec 01, 2010
- Women born to older mothers may develop breast cancer - Feb 07, 2012
- Hot flushes halve breast cancer chances - Jan 19, 2011
- Multiple childbirth linked to increased risk of 'triple-negative' breast cancer - Feb 25, 2011
Tags: active reports, body mass index, body mass index bmi, breast cancer, breast cancer risk, breast cancer women, british medical journal, family history, history of breast cancer, household chores, lean women, menopause, moderate activity, physical activity, recreational exercise, risk for breast cancer, spare time, tumours, womans body, women women