KIN121 Lab 7.docx - Lab 7 Exercise Heart Rate and Caloric...

Lab 7: Exercise Heart Rate and Caloric Cost of Physical Activity
Lab Section 17, 11/13/17, 11:30-12:50
Pawan Kumar
1
Introduction:
To demonstrate our knowledge of cardio fitness and aerobic functioning, we performed various
intensity physical activity, which consist of walking, a slow jog, and lastly a fast jog. To develop a
better understanding for overall health and body awareness, we measured heart rate along with
oxygen intake through VO
2
levels. VO
2
is the rate at which your heart and lungs can efficiently
carry oxygen to your muscles that need oxygen. VO
2
for this lab will be estimated based on our
heart rates relation to changes in running speed. The purpose of this lab is to help you become
familiar with the response of your heart rate to three different intensities of exercise and their
associated oxygen uptakes and caloric expenditures.
Methods:
Before completing the various walking and jogging exercises, we first recorded our resting heart
rate and blood pressure. We first completed 800m of walking, then 800m of slow jogging, then
lastly 800m of fast jogging, timing each interval. Throughout the lab, we recorded heart rate
immediately after completion of each intensity, along with two minutes and five minutes
following the jogging. To calculate our speed, we timed our laps around the track with the
various intensities and were able to get our maximum VO
2
. The purpose of this lab is to help us
become familiar with the response of our heart rate to three different intensities of exercise and
their associated oxygen uptakes and caloric expenditures.
Results:
1.)
i.) Weight = 69.5kg

Lab 7: Exercise Heart Rate and Caloric Cost of Physical Activity
Lab Section 17, 11/13/17, 11:30-12:50
Pawan Kumar
2
1.) ii.)
10 sec
HR
ii.) HR
(bpm)
iii.) Lap
Time
(min)
iv.) Speed
(m/min)
v. Relative
VO
2
Requirement
mL/kg/min
vi. Absolute
Requireme
nt VO
2
(L/min)
Walking
14
beats 84 8.58min 93m/min
12.8
mL/kg/min
0.89L/min
Slow Jog
17
beats 102 6.17min 130m/min
29.5
mL/kg/min
2.05L/min
Fast Jog
25
beats 150 3.37min 238m/min
51.5
mL/kg/min
3.58L/min
10 sec
HR
ii.) HR
(bpm)
iii.) Lap
Time
(min)
iv.) Speed
(m/min)
v. Relative
VO
2
Requirement
mL/kg/min
vi. Absolute
Requireme
nt VO
2
(L/min)
Walking
14
beats 84 8.58min 93m/min
12.8
mL/kg/min
0.89L/min
Slow Jog 17
beats
102 6.17min 130m/min 29.5
mL/kg/min
2.05L/min
238m/min 51.5
mL/kg/min
3.58L/min
2.) Estimated Absolute VO
2
based on trend line for given values and caloric expenditure
Heart Rate (bpm) i.) Estimated Absolute Vo
2
(L/min) ii.) Caloric Expenditure
10 sec HR HR (bpm)