Lab 6: Submaximal Exercise

Question 1

Purpose of Lab

Answer 1

-can be used as a means for describing the aerobic fitness of an individual
- Allows for the prediction of VO2max based on heart rate (HR)
response at a given power (W) or submaximal oxygen consumption

Question 2

General Trend

Answer 2

Linear: proportion at which HR increases in comparison to power
output or VO2 varies between individuals based on fitness
levels

Question 3

Compared to Maximal Exercise Test

Answer 3

↓ Equipment cost
↓ Experimenter expertise
↑ Subject comfort
↓ Level of specificity required
Submaximal Exercise

Question 4

Submax Tests

Answer 4

• Modified Harvard Step Test, YMCA Cycle Ergometer Test

Question 5

Purpose of Submax Tests

Answer 5

gives a VO2 estimation

Question 6

Modified Harvard Step Test

Answer 6

• measure a person’s aerobic fitness
• modified from maximal to submaximal test

Question 7

How was the Harvard step test modified?

Answer 7

Uses Modified Astrand Rhyming Nomogram
- A two-dimensional diagram designed to allow the approximate graphical computation of a function
- VO2max is a function

Question 8

Modified Harvard Step Test Instruction (remember the gist)

Answer 8

1. Record resting HR, BP, & RPE
2. Set up steps to the appropriate height: (a. Men: 15.5 inches b. Women: 13 inches)
3. Inform participant of the testing procedure: (a. “This is a 5 minute step test. You will step to the beat of the metronome using the same
   lead leg in an UP, UP, DOWN, DOWN rhythm. I will periodically ask for your rating of perceived exertion. Immediately following the test I will record your HR. If you’re ready to
   begin, I will have you march in place to the metronome. Once I give you a 5 second countdown you may begin”)
4. Set metronome to 90 beats per minute. Once the participant is in rhythm, provide a 5 second countdown and start the test
5. Record RPE every minute
6. The test will continue for 5 minutes.
7. After 5 minutes, immediately take a 20-second HR measurement
8. Take BP & RPE

Question 9

YMCA Cycle Ergometer Test

Answer 9

• Stage time: 3 minutes (total of 4 stages)
• Speed: 50 rpm (follow metronome)
• Grade: Begin at resistance of 0.5 kg and increase according to
  steady state HR at the end of stage 1 (follow chart on slide 6)
• Goal: Subject reaches 85% of their APHRmax