Fitness
Related Terms
Aerobic activity, cardiorespiratory endurance, cardiovascular endurance, muscular strength, muscular endurance, body composition, flexibility.
Background
Fitness is a set of attributes that people have or achieve that relates to the ability to perform physical activity. The Centers for Disease Control and Prevention (CDC) cite five components of physical fitness - muscular strength, flexibility, cardiorespiratory endurance, muscular endurance and body composition.
The CDC recommends that people of all ages participate in 30 minutes of physical activity (of mild intensity) daily. In addition, cardiorespiratory endurance activity should be supplemented with strength-developing exercises at least twice per week for adults, in order to improve musculoskeletal health and reduce the risk of falling.
According to the CDC, 50% of Americans do not exercise enough to achieve health benefits. Physical fitness and dietary intake are good indicators of a person's overall likelihood of developing serious and chronic health problems.
Practice
Consistent physical exercise is more important than the type of exercise performed. Examples of exercise include: walking, jogging, running, swimming, aerobics classes, weight lifting, sports (e.g. tennis, soccer, basketball).
Theory / Evidence
Widespread evidence suggests that physical fitness is essential to preventing disease. The DHHS has concluded that 90-95% of type 2 diabetes occurs due to the absence of physical fitness. Regular physical activity has been proven to significantly reduce the risk of developing high blood pressure, colon cancer, heart disease, and diabetes.
Beyond diabetes, the DHHS has declared that a pattern of poor diet and physical inactivity account for 14% of deaths in the United States. The same study declared that a sedentary lifestyle contributed to the deaths of 23% of people with chronic illnesses. In addition, those who are physically fit have a much longer life expectancy than those who are not.
Author information
This information has been edited and peer-reviewed by contributors to the Natural Standard Research Collaboration (www.naturalstandard.com).
Bibliography
Centers for Disease Control and Prevention: Components of Physical Fitness. 8 May 2006.
Centers for Disease Control and Prevention: The Importance of Physical Activity. 11 May 2006.
U.S. Department of Health and Human Services. . Atlanta: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion; 1996.
U.S. Department of Health and Human Services: Physical Activity Fundamental To Preventing Disease. 11 May 2006.