EXERCISE
plays an important role
in weight control by increasing energy output, calling on stored calories for extra fuel. Recent studies
show that not only does exercise increase metabolism during a workout, but it causes your metabolism to
stay increased for a period of time after exercising, allowing you to burn more calories.
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How much exercise is needed to
make a difference in your weight depends on the amount and type of activity, and on how much you
eat. Aerobic exercise burns body fat. A medium-sized adult would have to walk more than 30 miles
to burn up 3,500 calories, the equivalent of one pound of fat.
Lack of physical activity causes
muscles to get soft, and if food intake is not decreased, added body weight is almost always fat.
Once-active people, who continue to eat as they always have after settling into sedentary lifestyles, tend
to suffer from “creeping obesity.”
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