Looking Better

You need to burn off 3,500 calories more than you take in to lose 1 pound. If you want to lose weight, regular physical activity can help you in either of two ways.

First, you can eat your usual amount of calories, but be more active. For example: A 200-pound person who keeps on eating the same amount of calories, but decides to walk briskly each day for 1 1/2 miles will lose about 14 pounds in 1 year. Or second, you can eat fewer calories and be more active. This is an even better way to lose weight.

About three-fourths of the energy you burn every day comes from what your body uses for its basic needs, such as sleeping, breathing, digesting food and reclining. A person burns up only a small amount of calories with daily activities such as sitting. Any physical activity in addition to what you normally do will burn up extra calories.

The average calories spent per hour by a 150-pound person are listed below. (A lighter person burns fewer calories; a heavier person burns more.) Since exact calorie figures are not available for most activities, the figures below are averaged from several sources and show the relative vigor of the activities.

Activity Calories burned
Bicycling 6 mph 240 cals./hr.
Bicycling 12 mph 410 cals./hr.
Cross-country skiing 700 cals./hr.
Jogging 5 1/2mph 740 cals./hr.
Jogging 7 mph 920 cals./hr.
Jumping rope 750 cals./hr.
Running in place 650 cals./hr.
Running 10 mph 1280 cals./hr.
Swimming 25 yds/min. 275 cals./hr.
Swimming 50 yds/min. 500 cats./hr.
Tennis-singles 400 cals./hr.
Walking 2 mph 240 cals./hr.
Walking 3 mph 320 cals./hr.
Walking 41/2 mph 440 cals./hr.

The calories spent in a particular activity vary in proportion to one's body weight. For example, a 1 00-pound person burns 1/3 fewer calories, so you would multiply the number of calories by 0.7. For a 200-pound person, multiply by 1.3.

Working harder or faster for a given activity will only slightly increase the calories spent. A better way to burn up more calories is to increase the time spent on your activity.