Estimated time: 10 minutes
While biologists study the sophisticated biochemical processes organisms use to maintain relatively constant energy levels, dieters focus on two simple rules. Take in too much energy (i.e., too many calories) and you gain weight (or mass). Take in too few calories and weight loss, disability, and eventually death will result. But how much is too much? In this exercise we will use online calorie calculators to explore how different factors affect energy needs. Remember that this is only an exercise. The data obtained should not be used as the basis for any dietary or exercise program.
1.)First enter your height, weight (no cheating), age, and sex into the Basal Metabolism Calculator to calculate your basic (non-exercising) energy needs.website http://www.dietandfitnesstoday.com/bmr.php
2.)It is time to start an exercise program. Enter the same numbers into the Energy Calculator. Be patient; this calculator loads slowly. Choose "running, cross country, 20 minutes" as your activity. Calculate! How many calories did you burn while exercising?
3.)Return to the Energy Calculator and change the weight value to 200 lbs. Calculate. Did you use more or fewer calories than before? (http://nutritiondata.self.com/tools/calories-burned)
4.)Finally, look up the calorie content of your favorite fast food on the Food Finder. Use the Energy Calculator to estimate how many minutes of running it would take to burn off those calories. (www.myfitnesspal.com)
Make sure your name and email address are on the post. For each of the following I would like the answer(but for number 1 you can keep your weight secret)