运动可以降低前列腺癌患者的死亡风险

A new study of men withprostate cancerfinds that physical activity is associated with a lower risk of overall mortality and of death due to prostate cancer. The Harvard School of Public Health and University of California, San Francisco researchers also found that men who did more vigorous activity had the lowest risk of dying from the disease. It is the first study in men with prostate cancer to evaluate physical activity after diagnosis in relation to prostate cancer-specific mortality and overall mortality.

The study appears in an advance online edition of theJournal of Clinical Oncology.

'Our results suggest that men can reduce their risk of prostate cancer progression after a diagnosis of prostate cancer by adding physical activity to their daily routine,' said Stacey Kenfield, lead author of the study and a Harvard School of Public Health researcher. 'This is good news for men living with prostate cancer who wonder what lifestyle practices to follow to improvecancersurvival.'

Prostate cancer is the most frequently diagnosed form of cancer among men in the United States and affects one in six U.S. men during their lifetime. More than 2 million men in the U.S. and 16 million men worldwide are prostate cancer survivors.

这项研究是在健康专家随访研究中对2705名被诊断患有前列腺癌的男性进行的，历时18年。参与者报告了他们每周花在体育活动上的平均时间，包括散步、跑步、骑自行车、游泳和其他运动以及户外工作。

结果表明，非剧烈活动和剧烈活动都有利于整体生存。与那些以轻松的速度每周步行不到90分钟的男性相比，那些以正常到非常快的速度每周步行90分钟或以上的男性死于任何原因的风险降低了46 %。

只有剧烈的活动——定义为每周超过三小时——与降低前列腺癌死亡率相关。与每周剧烈运动少于一小时的男性相比，剧烈运动的男性患前列腺癌特异性死亡的风险低61 %。

Kenfield说:“我们观察到在可达到的活动水平上有好处，我们的结果表明患有前列腺癌的男性应该做一些身体活动，即使是少量的，比如每天15分钟的步行、慢跑、骑车或园艺活动。”。“然而，每周做三个小时或更多的剧烈运动可能对前列腺癌以及整体健康特别有益，”她说。

注:

这项研究由美国国立卫生研究院、查尔斯·金信托基金和前列腺癌基金会资助。

“健康专家随访研究中前列腺癌诊断后的身体活动和生存”，陈美儿，梅厄·斯坦普费尔，爱德华·乔万诺奇，陈美儿，临床肿瘤学杂志，在线2011年1月4日。

资料来源:
托德·达斯
哈佛公共卫生学院