Essay About Effect Of Exercise And Heart Rate

The Effect of Exercise on Heart Rate
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The Effect of Exercise on Heart Rate
The aim of this investigation is to find out how different types of
exercise can affect my heart rate.
To measure and record my heart rate, I am going to undergo an
experimental test. I am going to do 3 different types of exercise:
walking, light jog and lastly hard running. First, I will draw out a
table to record my results, and then I will measure my resting heart
rate for one minute. To make the experiment as accurate as possible, I
will take and record each exercise, including my resting heart rate, 3
times to increase precision and to make sure each recording is exact.
Initially, I am going to measure my resting heart rate 3 times for one
minute. Each time I get my reading, I will record it into the table.
My first exercise that I will carry out is going to be walking. I am
going to walk for exactly one minute, and after that minute, I will
measure and record my heart rate 3 times, also for one minute. I will
rest for 5 minutes after each exercise in order to get my heart rate
back to its resting pace. After my heart rate is back to its normal
resting pace, I will take my second exercise, which is a light jog. I
will lightly jog continuously for one minute, stop and take my heart
rate for one minute and then do the same process another two times.
Then finally I am going to do hard running for exactly one minute, and
after that minute, I will measure and record my heart rate 3 times,
also for one minute.
The apparatus that I will use to carry out my experiment consists of:
a stopwatch, a pen, a pencil, a ruler and paper.
To get reliable and detailed results, when exercising and measuring
the pulse of my heart rate for one minute, I will use a
stopwatch/clock, by doing so, it increase the accuracy of the test.
Furthermore, when I am regaining my resting heart rate for five
minutes, I will also use the stopwatch/clock to precisely time the 5
minutes. It is important to keep the timing the same each time because
a second either way can alter the final results causing it to be
imprecise. I will exercise and record my heart rate for one minute
each time, and for every exercise I will do this three times. Plus,
after each exercise, I will rest for 5 minutes to recover my resting
heart rate. Also I will after each exercise I will record my heart
rate for one minute three times.
The important variables of the experiment are the change of the type
of exercise completed each time. The first exercise will be walking,
the following light logging and the last, hard running. I will perform
these different types of exercises in a safe, open area such as a
field.
I predict that my heart rate will increase the faster and harder the
exercise is. This is because exercise or other increases in physical
activity require muscles to work harder or faster. To perform, our
muscles consume oxygen. As our muscles work harder or faster, they
require more oxygen. This increased demand for oxygen causes changes
in the circulatory and respiratory systems. Our respiration or
breathing rate increases: we take more breaths per minute in order to
get more oxygen into the body. Our heart rate increases: the heart
beats more times per minute in order to pump the blood containing the
oxygen to the muscles. As a result, the muscles receive more oxygen
per minute. Our heart rate and respiration rate stay elevated as long
as the muscles continue to need more oxygen. When we stop exercising,
the heart rate and respiration rate gradually decrease because the
muscles no longer need as much oxygen. Therefore I predict my resting
heart rate will be the lowest, and then the walking, light jogging and
my hard running heart rate will be the highest.
The measurements that I will use will be in seconds (s) and beats per
minute (bpm) e.g. whilst running for 60s my heart rate was 180bpm.
To ensure safety throughout my experiment, I will make sure I am
wearing shoes which have a rubber grip on the soles to prevent
slippage while I am doing the exercises e.g. trainers. Also, if
someone has an injury, bandages should be used to support and protect
the injury.
After completing the experiment, I got the following results:
Table of results:
Heart Rate (Beats Per Minute)
Type of Exercise carried out for 1 min.