|
Instructors' Guide for Facilitating
Activity Exercise
Activity Exercise: How does one minute of
exercise affect your pulse rate?
Instructor's Guide for Facilitating this activity:
How does one minute of exercise affect you pulse rate?
Required Equipment
Activity
This activity is designed to introduce the concepts and
analysis of two independent group comparisons and two
dependent samples (such as pre vs. post) comparisons. The
data can also be used for correlation and analysis of more
advanced topics of covariance.
Suggested Approaches and Some Tips for Facilitating
This Activity.
1. Describe this activity as a scenario.
- The benefits of exercise such as reducing heart
attack risk and strengthening the heart. The CDC
website provides a list of recommendations about
exercise at
http://www.cdc.gov/nccdphp/dnpa/physical/recommendations/index.htm
A moderate level of exercise for an adult is 30
minutes per day. In this activity, we would like to find
out how much one minute of exercise changes your pulse
rate.
2) Decide either
|
a) to have your class participate in the activity
(Go to 3) or b) to use the data collected by other classes
only (Go to 5) |
3. Engage students in the data
measurement and data collection
- Point out that students have
been working very hard in class. Now it is time for a
stretch. We are going to do a minute of aerobic
exercise .
- Have the piece of aerobic music (optional) and a
timing device ready.
- Before doing the exercise, ask the students to
take their pulse rate. Ask students to find their
pulse and wait for your announcement to start counting
and stop counting based on your timing device.
- Ask students to write down their pre-exercise
pulse rate.
- Now, select a student to lead the aerobic
exercise. Make sure students are away from their desks
and chairs.
- Students usually begin to stretch themselves. Set
the music and ask the students to begin to jump up and
down or follow whatever the student leader is doing
for a minute using your timing device.
- Right after the exercise, ask students to find
their pulse. Have the students follow your
directions on when to begin and end counting their
pulse rate. Then have them write down their post
exercise pulse rate.
4. Enter the pulse rate data.
- Students are suppose to be on the activity
Exercise page.
If not, ask them to click on 'Data Entry' select
'Activity Exercise' and on the activity Exercise, click on 'Add
Data'.
- Give students the Activity Exercise pass code to enter.
Make sure they check that their data is correct.
- The formula for computing BMI (Body Mass Index) is
BMI=(Weight in pounds)/(Height in inches)^2*703 OR
=(Weight in KG)/(Height in M)^2.
The following CDC website has a BMI calculator.
http://www.cdc.gov/nccdphp/dnpa/bmi/bmi-adult.htm.
5. Direct the students to download the data
for analysis.
-
Direct the students to ''Data Download''
page, select Activity Exercise. Then direct the students to select
the data you want them to work with. (If you are already on
the activity Exercise page, simply click on ''Select Data''.)
-
Make sure after clicking on ''Download'', ask
students to SAVE the selected data set. The most convenient
place to save the selected data set is on the Desktop. (Or
on the storage device designated to students.
Note: The data is a .dat data with variable
names as the 1st record. The default data set name is mydata
.dat
6. Direct the students to analyze the data.
You should have chosen what statistical tool
your class will be using for analyzing the data.
-
You may use the software on your local
computer lab.
-
You may use the online software ''crunch-it''
at
http://www.statcrunch.com/. For first time users, you
need to sign on to the site. Please stress that students
need to write down their ID and Password. Direct students to
input the data and analyze the data. Be more focused on what
tools are to be used for analyzing the pulse rate data based
on the purpose of the activity. A good idea is to prepare a
worksheet for students to follow.
-
The following is a suggested list of problems
for analyzing the pulse rate data.
Suggested
Questions for Classroom Activities
|
