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      Health benefits of physical activity: the evidence.

      CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne

      Physical Fitness, Cardiovascular Diseases, prevention & control, Chronic Disease, Diabetes Mellitus, Exercise, Health Behavior, Health Status, Humans, Life Expectancy, Neoplasms

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          Abstract

          The primary purpose of this narrative review was to evaluate the current literature and to provide further insight into the role physical inactivity plays in the development of chronic disease and premature death. We confirm that there is irrefutable evidence of the effectiveness of regular physical activity in the primary and secondary prevention of several chronic diseases (e.g., cardiovascular disease, diabetes, cancer, hypertension, obesity, depression and osteoporosis) and premature death. We also reveal that the current Health Canada physical activity guidelines are sufficient to elicit health benefits, especially in previously sedentary people. There appears to be a linear relation between physical activity and health status, such that a further increase in physical activity and fitness will lead to additional improvements in health status.

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          Author and article information

          Journal
          16534088
          1402378
          10.1503/cmaj.051351

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