Feb 17, 2006

Physical Activity And Colon Cancer Risk

After all there may be no relationship between physical activity and the risk of development of colon cancer. A larger prospective cohort study of 31,783 American women has found no significant association between levels of physical activity and colon cancer incidence. This study, that is published recently in the International Journal of Cancer, is available via Wiley InterScience (http://www.interscience.wiley.com/journal/ijc).

Some researchers have previously theorized that it might also inhibit colon cancer. Over forty epidemiologic studies have examined the association with varying results. Many observed a reduction in colon cancer risk for people reporting high levels of activity, compared to those who did not. Several studies have shown a stronger inverse relationship for men, compared to women. Other studies have found no association at all for women.

Researchers led by Brook A. Calton, from the University of California-San Francisco, conducted a prospective study of a large cohort of post-menopausal women in the United States. Using the Breast Cancer Detection Demonstration Project Follow-up Study, they collected information about physical activity and colon cancer cases for 31,783 women. There were 243 cases of colon cancer during the ten-year study period from 1989 to 1998.

Researchers analyzed the data for physical activity for all women, and observed no association between physical activity and the subsequent risk of colon cancer. "The results of this large prospective cohort study among women do not support the hypothesis that physical activity is related to a lower incidence of colon cancer," the authors report.


Sue      

Do You Read All Of Our Cancer Blogs?

Do you read all of the blogs published by medicineworld.org? Many of our bloggers are busy keeping you updated on the various health related topics. We publish the following blogs at this time.

Cancer blog: I manage the cancer blog with lots of help and support form other bloggers. Through this cancer blog my friends and I try to bring stories of hope for patients with cancer. The cancer blog often republishes important blog posts from other cancer related blogs at Medicineworld.org. If you are searching for a blog that covers wide variety of cancer topics, this may be the one for you.

Breast cancer blog: Breast cancer blog is run by Emily and other bloggers and they bring you the latest stories, news and events that are related to breast cancer. Increasing awareness about breast cancer among women and in the general population is the main goal of this breast cancer blog.

Lung cancer blog: Lung cancer blog is managed by Scott with the help of other bloggers. Through this blog Scott and his friends constantly remind the readers about the dangers of smoking. It's a never-ending struggle against this miserable disease with which a social stigma of smoking is associated.

Colon cancer blog: Colon cancer blog is run by Sue and other bloggers. Sue brings a personal touch to the colon cancer blog since her mother died of colon cancer few years ago. She writes about stories, research news and advances in treatment related to colon cancer.

Prostate cancer blog: Prostate cancer is the most common cancer among American men. American Cancer Society estimates that over 230,000 new cases of prostate cancer occur in the United state every year. This important blog about prostate cancer is run by Mark and other bloggers. This blog brings news, stories, and other personal observations related to prostate cancer.

Medicineworld.org publishes a diabetes watch blog and this blog is run by JoAnn other bloggers. This diabetes watch blog brings you the latest in the field of diabetes. This includes personal stories, advances in diagnosis and treatment, and other observations about diabetes. Improving awareness about diabetes is an important mission of this group.

Janet      

Colorectal cancer
Colorectal cancer is a malignant tumor that arises from the inner wall of the large intestine or rectum. Colorectal cancer is the third commonest cancer diagnosed in the United States. Each year over 100,000 people are diagnosed with colorectal cancer in the United States. Most, of these cancers develop from growths in the colon called polyps. Removal of these polyps can prevent colon cancer.