1 NORTHUMBRIA-A mailing list for the counties of Northumberland and Durham, England. 2  DUR-NBL Mailing List-A list for individuals interested in genealogy and history of Durham and Northumberland Counties.
Physical activity is any body movement that works your muscles and requires more energy than resting. Walking, running, dancing, swimming, yoga, and gardening are a few examples of physical activity. According to the Department of Health and Human Services' 2008 Physical Activity Guidelines for Americans, physical activity generally refers to movement that enhances health.
Absolute intensity. The amount of energy used by the body per minute of activity. See Measuring Physical Activity for more. Aerobic physical activity. Activity in which the body's large muscles move in a rhythmic manner for a sustained period of time.Aerobic activity, also called endurance activity, improves cardiorespiratory fitness.Examples include walking, running, and swimming, and bicycling.ctivity in which the body's large muscles move in a rhythmic manner for a sustained period of time. Aerobic activity, also called endurance activity, improves cardiorespiratory fitness. Examples include walking, running, and swimming, and bicycling.