Lab 5

Question 1

Oxygen consumption is linearly related to energy production?

Answer 1

The higher the VO2Max the more energy they can produce and more work can be done aerobically

Question 2

What does a low VO2Max suggest about anaerobic means of energy production

Answer 2

It means that anaerobic means of energy production will have to supplement the aerobic processes at an earlier workload.

Question 3

Bruce treadmill protocol?

Answer 3

Treadmill protocol used to measure VO2Max via its steep incline

Question 4

Why is the Bruce treadmill protocol criticized?

Answer 4

Because of big steep incline at the beginning it causes many musculoskeletal fatigue before VO2Max is achieved.

Question 5

What is VO2peak?

Answer 5

The highest observed values during a test. May or may not be actual “max.”

Question 6

What would be a better predictor of performance? VO2Max or Anaerobic Threshold?

Answer 6

Higher AT, means higher intensity the athlete can sustain without lactic acid build up.

Question 7

How are Anaerobic Threshold and VO2Max correlated?

Answer 7

VO2Max percentage is the percent that the anaerobic threshold holds up to. If someone had a 60% VO2Max then their threshold is 60 before they reach their max.

Question 8

What are 4 criteria to attain VO2Max

Answer 8

1) Heart rate is > 90% age predicted max
2) Plateau in VO2 (how much oxygen they can take in)
3) RER > 1.1 (Ratio of CO2 out and O2 in)
4) Blood Lactate >8mM

Question 9

What is Central VO2Max?

Answer 9

The ability of the cardiorespiratory system to deliver O2 to exercising muscles where it’s used to product ATP for muscle contractions.

Question 10

What are central limitations to O2 delivery for a VO2Max test?

Answer 10

• Pulmonary diffusion of oxygen (how well O2 moves from alveoli to blood)
• Cardiac Output
• Blood Volume

Question 11

How does blood doping or having a bigger heart improve central limitations?

Answer 11

associated with better endurance and aerobic capacities since it enhances the ability to deliver oxygen

Question 12

What is Peripheral Vo2Max

Answer 12

It’s the ability of the muscles to take in O2 from the cardiorespiratory system and use it effectively.

Question 13

Limitations of Peripheral Vo2Max

Answer 13

• Muscle diffusion capacity (oxygen used by muscles and sent to the venous blood),
• Mitochondrial Enzyme levels (ATP production facilitated by these molecules)
• Capillary density

Question 14

How does the muscle use oxygen to produce ATP?

Answer 14

When oxygen reaches the muscles, it converts glucose into ATP to use as a form of energy for the muscles.