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EXERCISE INTENSITY Whether your goal is to burn fat or to strengthen your cardiovascular system, the key to achieving the desired results is to exercise with the proper intensity. The proper intensity level can be found by using your heart rate as a guide. The chart below shows recommended heart rates for fat burning, maximum fat burning, and cardiovascular (aerobic) exercise. To find the proper heart rate for you, first find your age near the bottom of the chart (ages are rounded off to the nearest ten years). Next, look above your age and find the three numbers in light grey boxes. The three numbers are your “training zone.” The lowest number is the recommended heart rate for fat burning; the middle number is the recommended heart rate for maximum fat burning; the highest number is the recommended heart rate for aerobic exercise. Fat Burning To burn fat effectively, you must exercise at a relatively low intensity level for a sustained period of time. During the first few minutes of exercise, your body uses easily accessible carbohydrate caloriesfor energy. Only after the first few minutes of exercise does your body begin to use stored fat caloriesfor energy. If your goal is to burn fat, adjust your pace until your heart rate is near the lowest number in your training zone as you exercise. Maximum Fat Burning For increased fat burning, adjust your pace until your heart rate is near the middle number in your training zone as you exercise. Aerobic Exercise If your goal is to strengthen your cardiovascular system, your exercise must be “aerobic.” Aerobic exercise is activity that requires large amounts of oxygen for prolonged periods of time. This increases the demand on the heart to pump blood to the muscles, and on the lungs to oxygenate the blood. For aerobic exercise, adjust your pace until your heart rate is near the highest number in your training zone. HOW TO MEASURE YOUR HEART RATE To measure your heart rate, first exercise for at least four minutes. Then, stop exercising and place two fingers on your wrist as shown. Take a six-second heartbeat count, and multiply the result by 10 to find your heart rate. For example, if your six-second heartbeat count is 14, your heart rate is 140 beats per minute. (A six-second count is used because your heart rate will drop rapidly when you stop exercising.) Adjust your pace until your heart rate is at the desired level. WORKOUT GUIDELINES Each workout should include the following three parts: A warm-up, lasting 5 to 10 minutes. Begin with slow, controlled stretches, and progress to more rhythmic stretches to increase the body temperature, heart rate, and circulation in preparation for strenuous exercise. (Refer to SUGGESTED STRETCHES on page 13.) 12 Training zone exercise, consisting of 20 to 30 minutes of exercising with your heart rate in your training zone. (See the chart on page 12 to find your training zone.) A cool-down, with 5 to 10 minutes of stretching. Thorough stretching offsets muscle contra...

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