Unit 2d : Aerobic fitness

Question 1

What are Aerobic fitness tests mainly used for ? (6)

Answer 1

1. screen for CAD risk
2. Evaluate the Cardio-respiratory system
3. Evaluate vascular system
4. Evaluate the Px’s overall response to exercise
5. Determine the fitness level
6. monitor progress over time

Question 2

What are the Laboratory testing protocols and give an example of each (4-8)

Answer 2

1. Maximal (e.g bruce)
2. Submaximal (e.g YMCA protocol)
3. Direct (e.g o2 gas analyzer to measure exhaled air composition)
4. Indirect (HR and equations to predict vo2max)

Question 3

What are the Field-based protocols and give an example of each (3-6)

Answer 3

1. step tests (e. gYMCA)
2. Run-walk tests (e.g 1.6 or 2.4km)
3. Swim tests (e.g distance and time used to predict vo2max)

Question 4

What are the test termination criteria for an exercise test? (10)

Answer 4

1. Angina
2. SBP drops > 10 despite increased workload
3. EXtreme shortness of breathe
4. Claudication
5. poor perfusion
6. HR doesn’t increase w workload
7. ECG abnormalities
8. Request to stop
9. Signs of sever fatigue
10. equipment failure

Question 5

Name 8 steps for conducting GXTs. (8)

Answer 5

1. pretest instructions
2. Paperwork
3. measure resting baseline data (HR, BP, EKG)
4. Give instructions and start warm-up
5. Continual monitoring
6. stage change (depends on protocol)
7. Termination
8. Cool down and recovery

Question 6

What are the submaximal assumptions? (4)

Answer 6

1. Steady HR is achived and stays consistent for work rate
2. Linear relationship between HR and Vo2 for HRs between 110 and 150bpm
3. Mechanical efficiency is the same for all tests
4. HRmax is similar for same age groups

Question 7

How long are bruce protocol stages ? (1)

Answer 7

3 minutes

Question 8

Why do we use modified bruce and what is the difference ? (3)

Answer 8

For elderly or high risk px (1)
extra warm-up of 3 min at 2.7lm/h at )% gradient (1)
slightly different increments (1)

Question 9

What is the initial workload for normal px ? (3)

Answer 9

1.7 mph, 10%, 3 min

Question 10

What is the inital workload for high risk px ? (3)

Answer 10

1.7 mph, 0-5%, 3 min

Question 11

What is the submaximals test max HR ?(1)

Answer 11

<85% age pridicted HR (220-age)

Question 12

For YMCA what range should the HR be in ? (1)

Answer 12

110 - 150

Question 13

Equation for watts ? (1)

Answer 13

watts = RPM x load (kg)

Question 14

How to convert from watts to kgm/min? (1)

Answer 14

watts x 6

Question 15

3 most important test termination criteria for YMCA? (3)

Answer 15

1. SBP drop >10 despite increaed workload
2. DBP rise > 15
3. Reached 85% age predicted HR max

Question 16

what is PWC-170 ? (1)

Answer 16

estimates the working capacity at a heart rate of 170 beats per minute

Question 17

Name 7 Aerobic fitness tests (7)

Answer 17

1. YMCA
2. Bruce prtocol
3. Astrand-Rhyming protocol
4. Step test protocol
5. 1.6km run/walk test protocol
6. 6-min walk test (elderly)
7. 2 min step test (elderly)

Question 18

Male norms for YMCA age group 20-29 ?

Answer 18

> 44.5 good
38.3-43.1 Fair
<38.3 poor

Question 19

Female norms for YMCA age group 20-29 ?

Answer 19

> 33.6 good
20.1 -32.4 Fair
<20.1 poor

Question 20

What is Vo2 max ?

Answer 20

product of maximal cardiac output and aterial venous oxygen difference