Moderate Physical Activity Reduces Risk of Prostate Cancer
Researchers reveal that moderate levels of exercise may reduce the risk for prostate cancer for elderly men. However, data shows that this was true only for Caucasian men and not for those of African American descent.
Lionel Bañez, MD, of the Durham Veterans Affairs Medical Center in Durham N.C., and colleagues analyzed data gathered from questionnaires regarding physical activity levels in 307 men with an average age of 64 years. They were patients who were suspected of having prostate disease. They compared the results with biopsy findings on their prostates, and found that there may be a link between activity levels and the development of prostate cancer. One hundred and twenty-five (125) men turned out to have prostate cancer, including 54, who had advanced disease.
Analysis showed that men who had moderate to high levels of self-reported physical activity were less likely to develop prostate tumors, and for those who had cancer, they were less likely to be high-grade tumors. Less active or sedentary patients were more likely to develop the disease and to have them in advanced stages. However, these findings were only significant for Caucasian patients but not for the African Americans.
The authors state that the reason for the disparity among racial factors remains unclear, but it is possible that hormonal and genetic factors may play an important role. They also cite that other factors such as diet were not considered in the study. They admit that further investigation is needed to explain these differences.
Smith, M. Workouts Cut Prostate Cancer Risk in Whites. MedPage Today.