الثلاثاء، 19 فبراير 2008

Health

Exercise is the performance of movements 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 of the diseases of affluence such as cancer, heart disease, cardiovascular disease, Type 2 diabetes, obesity and back pain.
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 muscle density.
Anaerobic exercises such as weight training or sprinting increase muscle mass and strength.

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Alsareeh يقول...

This topic is interesting that bring the attendtion for any one read it .It talks about the sport generally