Reference Terms
from Wikipedia, the free encyclopedia

Physical exercise

Physical exercise is the performance of some activity in order to develop or maintain physical fitness and overall health.

It is often directed toward also honing athletic ability or skill.

Frequent and regular physical exercise is an important component in the prevention of some diseases such as heart disease, cardiovascular disease, Type 2 diabetes and obesity.

Exercises are generally grouped into three types depending on the overall effect they have on the human body: Flexibility exercises such as stretching improve the range of motion of muscles and joints; aerobic exercises such as walking and running focus on increasing cardiovascular endurance; and anaerobic exercises such as weight training, functional training or sprinting increase short-term muscle strength.

Physical exercise is considered important for maintaining physical fitness including healthy weight; building and maintaining healthy bones, muscles, and joints; promoting physiological well-being; reducing surgical risks; and strengthening the immune system.

Note:   The above text is excerpted from the Wikipedia article "Physical exercise", which has been released under the GNU Free Documentation License.
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August 31, 2015

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updated 12:56 pm ET