Upload
stuart-park
View
228
Download
0
Tags:
Embed Size (px)
Citation preview
OUR MATH'S PROJECT
Shama Ali
Adari Juma
Khadija Ahmed
Nouf Moh.
INTRODUCTIONTo 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 ?
STEPSIn 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.)
Minutes after exercise (x)
Recorded heart rate
f(x)
0 f(x)=-12(0)+137.3
137.3
1 f(x)=-12(1)+137.3
125.3
2 f(x)=-12(2)+137.3
113.3
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.