活動的な乳がん患者の方が長生きする

Active women with breast cancer may live longer(page1)

"We found a beneficial effect on survival for exercise undertaken in the year before diagnosis, particularly among women who were overweight or obese near the time they were diagnosed with breast cancer," Dr. Page E. Abrahamson of the Fred Hutchinson Cancer Research Center in Seattle told Reuters Health.

Abrahamson and a multicenter U.S. team investigated the ties between prediagnosis physical activity and survival in 1,264 women, between 20 and 54 years old, who were diagnosed with breast cancer between 1990 and 1992.

Data analysis showed that women reporting the lowest levels of activity had consistently lower survival rates throughout follow-up.

Active women with breast cancer may live longer(page2)

High activity levels were associated with a 30-percent reduction in the risk of death among women who were overweight or obese at the time of diagnosis.

No relationship was observed between mortality risk and physical activity levels among women who were underweight or at their ideal weight at the time of diagnosis. Physical activity at age 13 or age 20 also had no impact on survival in this study.

"If future research confirms that physical activity improves survival among women with breast cancer, programs and policies to promote such activity for this purpose may be adopted," she added.

体重の少ない女性には関係ないっぽいな…。
この手の話でいつも思うんだけど、運動できないくらい消耗してる人とそうでない人の差ってことはないんだろうか。それともここでいうactiveでない人ってのは、選択の結果、運動してないって事?