OUR MATH'S PROJECT  Shama Ali  Adari Juma  Khadija Ahmed  Nouf Moh.

INTRODUCTION To calculate your Target Heart Rate, subtract your age from 220 and then multiply that number by.5 and.85 to find 50% and 85% of your maximum heart rate—the heart rates that bound your target heart rate zone. This is the range that you will be aiming for during physical activity.

ANIMATION

Movie

WHAT WILL YOU NEED ?

STEPS  In order to find your heart rate, you’ll need to be able to find your pulse. The two easiest places to find a pulse are at the carotid artery in the neck and the radial artery in the wrist.

 Choose an activity which you can do at a moderate pace for at least 5 minutes without stopping.  Take your clock, paper and pencil.  Take your pulse (at wrist or neck) by counting your heartbeats for 15 seconds (see additional handout, Taking Your Pulse, if available). Multiply by 4 to get beats per minute (BPM). We will consider this to be your resting heart rate. Write it down.

MAKE A CHART

PLOT *Let the y values be average heart rate for your group in beats per minute. *Let x be the number of minutes after you stopped exercising.

PLOT

WHAT DOES THIS DATA LOOK LIKE ?  It looks like a straight line.

 Write down the general form for a quadratic function, f(x).

F(x)=mx+b

Using the general form of f you wrote down in Step 8, evaluate f at x=0,1,2; in other words, write down expressions for f(0), f(1), and f(2). (There will be unknowns.)

 1.If your model perfectly represented your group’s average BPM at 1- minute intervals after exercising (it probably doesn’t—that’s OK), at what approximate time should f attain the group’s average resting heart rate? f is 5 minutes and 25 seconds

 2.What happens to the function f after this time? Is f still a reasonable estimator of the group’s average BPM after this time? Yes it is, because 74.3 is somehow close to 65.3 f(x)= -12(5.25)+137.3

 3.If the heart rate is in the range of at risk what should one do, research the advantages of increasing the target heart rate or decreasing the target heart rate. Raising your heart rate to just 50% of your maximum results in 85% of the calories you burn the upcoming fats.