Friday, May 9, 2008

Health Related

Types of Fitness: Health-related
Health related fitness is what everyone should have whether they play a sport or not. Keeping the body fit for health incorporates the following components:

1) Cardiovascular fitness
Requires the heart and blood vessels to supply the working muscles with oxygen for long periods of time.
Strength
Is normally measured by the amount of weight the muscles can lift, or applying a force against a resistance.

2) Strength
Is normally measured by the amount of weight the muscles can lift, or applying a force against a resistance.

3) Flexibility
Is an important part of fitness that we need to keep into our old age. Babies have a natural suppleness and can suck their toes (not that as a teenager you would probably want to do this still), we lose flexibility as we grow older. We should always remember to warm up before competition to stretch our muscles and tendons.

4) Muscular endurance
Is the ability of the muscle to work for long periods of time without tiring. A marathon runner is an extreme case of a person who has muscular endurance in the leg muscles (Hamstrings and Gastrocnemius in particular).


5) Body Fat
Another facet of health is maintaining a good body fat percentage. It can be difficult to reach a good level of fitness in the above areas if you are carrying extra weight. It can also be difficult to reach a good level of fitness if your body is underweight, not storing enough energy to keep you going. Being underweight can also mean that the body does not build muscle tone, and can cause joint injuries as fat pads cushion the joints. You can measure, with skinfold calipers, the amount of our body weight which is fat.
We all differ in shape and size, but the average acceptable body fat percentage for a male is 15%, and for a woman 25%. That means that if a woman weighs 60kgs, then 15kgs of her body weight should be fat. A woman naturally has more body fat than a man to help her body during pregnancy.
Keeping body fat under control can be very difficult for a lot of people, and fortunes are made devising new "diets" because more people are overweight in this country than ever before. There is also a fear of fat that is causing some people, women and girls especially, to stay dangerously underweight. The only way to stay an appropriate weight is to keep a balance between food intake and the calories we burn.

Adapted source
http://bbc.co.uk

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