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Physical Activity Intensity and Timing is Important in Reducing Breast
Cancer Risk
It is well established that participating in regular physical activity can significantly reduce
risk for developing a number of cancers including breast cancer. Less is known about
the optimal type and level of physical activity to reduce cancer risk.
A recent study in a large group of post-menopausal women looked at the impact of the
different intensities and timing of physical activity in reducing risk of developing breast
cancer. The study revealed that more recent physical activity, performed in last 10
years, rather than activity performed in the younger years was more crucial in reducing
cancer risk.
Activity intensity was the other important factor in reducing breast cancer risk. Activity
of a moderate to vigorous intensity was associated with reduced risk. For those women
completing a high level of weekly moderate to vigorous activity a 15% lower risk was
reported in comparison to those completing minimal activity.
Activity of a light intensity or activity performed greater than 10 years ago did not
impact on breast cancer risk for post-menopausal women.
Key message
Post menopausal women should participate in regular moderate to vigorous intensity
physical activity to assist in reducing risk of developing breast cancer.
BMC Cancer 2009; 9: 349.
EXERCISE FOR IMPROVED QUALITY OF LIFE.
EXERCISE FOR IMPROVED QUALITY OF LIFE.