Cancer prevention through sport
Regular physical activity can also reduce the risk of certain cancers by up to 70 percent. Here, however, a corresponding prevention can only be achieved with relatively high activity over a long period of time. Relatively certain evidence of decreased morbidity rates among athletes is found with regard to colorectal cancer. Some studies also point to a favorable influence of sports and exercise on the risk of developing breast, prostate and lung cancer:
- Very active men who consume more than 2, 500 kilocalories a week through exercise have a 40 percent lower risk of colorectal cancer. Women reduce the risk of colorectal cancer by about 50 percent with four hours of exercise per week.
- The risk of bronchial carcinoma (lung cancer) can be reduced by 20 to 60 percent with lots of exercise.
- During puberty, breast cancer risk decreases by 30 percent if at least one hour of exercise is given three times a week.
- In prostate and testicular cancer, the positive effect is between 10 and 70 percent.
Sport helps cancer patients
In addition, recent research shows a positive impact of coordinated sports and exercise programs in people who already have cancer. In women with breast cancer, moderate endurance training has positive effects on the immune system and on psychological factors. In other tumor diseases such as colon cancer or lung tumors, the tumor defense can be strengthened by sports and exercise.