Exercise plays a vital role

In the last two decades, it has become clear that exercise plays a vital role in cancer prevention and control (2,5). Courneya and Friedenreich (1) proposed a Physical Activity and Cancer Control Framework that highlights specific phases along the cancer continuum where exercise has a logical role and identifies two distinct periods before diagnosis and four periods after diagnosis with objectives for exercise programs in each phase. There is a growing body of evidence suggesting that exercise decreases the risk of many of cancers (4,5), and data to support the premise that exercise may extend survival for breast and colon cancer survivors are emerging (3).

0195-9131/10/4207-1409/0 MEDICINE & SCIENCE IN SPORTS & EXERCISE Copyright 2010 by the American College of Sports Medicine. DOI: 10.1249/MSS.0b013e3181e0c112


  1. Courneya KS, Friedenreich CM. Physical activity and cancer control. Semin Oncol Nurs. 2007;23(4):242–52.
  2. Courneya KS, Friedenreich CM. Framework PEACE: an organizational model for examining physical exercise across the cancer experience. Ann Behav Med. 2001;23:263–72.
  3. Holmes M, Chen WDF, Kroenke C, Colditz G. Physical activity and survival after breast cancer diagnosis. JAMA. 2005;293: 2479–86.
  4. Physical Activities Guidelines Advisory Committee. Physical Activity Guidelines Advisory Committee Report. Washington (DC): US Department of Health and Human Services; 2008.
  5. World Cancer Research Fund/American Institute for Cancer Research. Food, Nutrition, Physical Activity, and the Prevention of Cancer: A Global Perspective. Physical Activity. Washington (DC): American Institute for Cancer Research; 2007. p. 198–209.