![]() ![]() Leave enough time between the exercises so that your heart rate returns to around its normal resting level (this should only take a few minutes). Repeat this process for at least one other exercise.How did your heart rate (in bpm) change over time? Calculate your heart rate after one, two, five, 10 and 15 minutes of exercise by multiplying the number of beats you counted (in 10 seconds) by six.(You want to quickly check your pulse because it can start to slow within 15 seconds of stopping exercising.) How do the number of beats you count change over time? How did you feel by the end of the exercise? While you do this, write down the number of beats you count in 10 seconds after one, two, five, 10 and 15 minutes of activity. Perform the first exercise for 15 minutes.Before starting it, make sure you have been resting for a few minutes so that your heart is at its resting heart rate. Choose which exercise you want to do first.) Do you think the activities will affect your heart rate differently? How do you think doing each activity will affect your heart rate? (If you want to make a homemade hula-hoop, steps for doing this are given in the activity Swiveling Science: Applying Physics to Hula-Hooping. Some examples include jumping rope, lifting a two-pound weight, riding a bike, hula-hooping, walking, etc. You will be measuring your heart rate during different types of physical exercises over a period of 15 minutes.What is your resting heart rate? Write it on a scrap piece of paper. This will give you your resting heart rate in beats per minute (bpm). To do this, take your pulse when you have been resting and multiply the number of beats you count in 10 seconds by six. Measure your resting heart rate, which is your heart rate when you are awake but relaxed, such as when you have been lying still for several minutes.(You can alternatively take your carotid pulse to do this activity, but be sure you know how to safely take it and press on your neck only very lightly with your fingers.) Practice finding your pulse until you can do it quickly. You should find your radial pulse on the "thumb side" of your wrist, just below the base of your hand. Use the first two fingers of one hand to feel your radial pulse on the opposite wrist. (Remember to always stop an exercise if you feel faint.) You will want to do at least two different types of exercises, both of which you can sustain for 15 minutes. Alternatively you can do exercises that do not require equipment, such as walking, doing jumping jacks, jogging in place, etc. Simple and fun exercise equipment, such as a jump rope, bicycle, hula-hoop, two-pound weight, etc.Comfortable exercise clothes (optional).Clock or timer that shows seconds or a helper with a watch.The AHA recommends a person gets at least 30 minutes of moderate to vigorous exercise-exercise that elevates their heart rate to the target heart rate zone-on most days of the week, or a total of about 150 minutes a week. This range is called the target heart rate zone. The American Heart Association (AHA) recommends doing exercise that increases a person's heart rate to between 50 to 85 percent of their maximum heart rate. For example, if you are 30 years old, your maximum heart rate would be 190 bpm. But by how much, for how long and how often should your heart rate be elevated? This has to do with how fit you are and your maximum heart rate, which, for adults, is about 220 beats per minute (bpm) minus your age. Heart health experts say that the best ways to keep our hearts healthy is through a balanced diet, avoiding smoking and regular exercise.Įxercise that is good for your heart should elevate your heart rate. A person's heart is continuously beating to keep the blood circulating. In this science activity, you'll measure your heart rate during different types of physical activities to find out which gives your heart the best workout to help keep it fit.Ī 150-pound adult has about 5.5 liters of blood on average, which the heart circulates about three times every minute. For a person to keep their heart healthy, they should eat right, not smoke and get regular exercise. Have you ever wondered how many times your heart beats in a day, a month, a year-or will beat in total throughout your life? Over an average lifetime, the human heart beats more than 2.5 billion times. ![]()
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