1. This lab is being performed to monitor how the different
levels of fitness affect the heart rate. The heart rate
measures how many times your heart beats in one minute.
Normal range for a healthy individual is from 60 to 100 beats
per minute. The heart rate measures how many times your
heart contracts and relax every minute. The heart rate can
be measured by placing the index and third finger on the
side of the windpipe on top of the jugular vein. Today we
will be monitoring the effects of walking up three flights of
stairs at different intervals affect the heart.
*

2. *
Question
Is there a
relationship with
the amount of
exercise, causing
the heart rate
to increase?
Hypothesis
The heart rate
increases as the
length of time
decrease during
physical exertion.

3. riam
agurra
Nesterkova
Liubou
Webster
Petal
Robert
Russell
Oladipo
Olujemiyo
Samiato
Omotunwash
e
ntrol
82
Control
84
Control
84
Control
88
Control
60
Control
+108/2=94
ght 1 min
88+96= 92
Light 1min
92+100/2=96
Light 1 min
82+76/2=79
Light 1 min
100+112/2=10
6
Light 1min
68+56/2=96
Light 1min
+100/2=98
dium 30
c
100+160/2
=130
Medium 30
sec
100+160= 130
Medium 30
sec
108+92/2=100
Medium 30 sec
116+108/2+=1
70
Medium 30 sec
104+92= 196
Medium 30
sec
8+108/2=
8
avy 20 sec
108+120/2
=168
Heavy 20
sec
108+120/2=6
4
Heavy 20 sec
98+100/2=99
Heavy 20 sec
124+124/2
124
Heavy 20 sec
120+108/2=1
14
Heavy 20 sec

6. Observation:
The group performed walking up the stairs at different intervals
1min as light, 30 seconds as medium and 20 seconds as heavy.
This information was timed using a stop watch. Each member
of the group member took their pulse prior to the exercise.
This pulse was used by each member as a control for the
experiment. The different intervals were used as variables to
monitor the effects. After careful examine the information
collected from the data. It shows that physical exertion does
play a role with increasing a person heart rate. Some of the
other factor that plays a role in increase heart rate is the
different level of fitness, age, medication and smoking. Heart
rates tend to be lower in the morning, and increases at high
temperatures. Dehydration can cause an increase in heart rate.
Heart rate during running varies by a few beats from day-to-day.
Training heart rate does not predict racing heart rate. Listening
to different types of music, Watching scary movie and drink
coffee also can affect heart rate. Exercise is good for the

7. Conclusion:
After carefully examining the data that I
collected from the experiment, I found that the
heart rate increases as the length of time
decreases during physical exertion. But also
there are many other factors outside of exercise
that affects the rate, such as age, diet,
hereditary and medication. I am a smoker and
have high blood pressure. Which leads me to not
be able to directly link pressure change to
physical exertion alone. Therefore, My data
forces me to reject my hypothesis, that the
amount of exercise affects the heart rate as

8. Robert Russell
Biology 121
Summer Session 2013
Dr. James Onoda
Group Members
Miriam Bigurra
Nesterkova Liubou
Webster Peta
Robert Russell
Oladipo Olujemiyo
Samiato Omotunwashe