This subject would lose 12 pounds in 17 weeks by riding a bike at 10 MPH for 40 minutes per day fi ve times per week. Your weight-loss goals can be determined in the same way. Part 2 Now apply your knowledge of energy expenditure through exercise by solving the following problem. Jim weighs 220 pounds and wishes to lose 25 pounds by running or jogging at 5 MPH for 30 minutes per exercise session fi ve days per week. Do the calculations to solve Jim’s problem by following these steps: 1. Multiply body weight by the appropriate calories burned per minute per lb. from Table 8-3for running or jogging 5 MPH. 220 lbs. __0.064 coeffi cient __14.08____ calories/min. ___422.4___ calories/min. 30 min. ______ calories 2. Multiply the number of calories expended per workout by the number of workouts per week: __422.4____ calories 5 workouts/week _2112_____ ______ calories/week 3,500 calories/lb. __2112____ lbs. lost/week 3. Divide the total pounds to be lost by the number of pounds lost per week. 25 lbs. __1.4____ lbs. lost/week _17_____ weeks 4. a. How many calories will Jim expend per exercise session? ______ b. How many pounds will he lose per week at this energy expenditure? ______ c. How many weeks will it take Jim to lose 25 pounds? ______
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