Aerobic (VO2) vs. Anaerobic Metabolism

Question 1

Does Anaerobic metabolism require oxygen?

Answer 1

NO

Question 2

What is Anaerobic metabolism’s ATP yield per molecule of glucose?

Answer 2

2 ATP’s yielded per 1 glucose

Question 3

Does Aerobic Metabolism require oxygen?

Answer 3

YES

Question 4

What is Aerobic metabolism’s ATP yield per molecule of glucose?

Answer 4

38 ATP’s yielded per 1 glucose

Question 5

How much more efficient is aerobic metabolism to anaerobic?

Answer 5

19 times more efficient.

Question 6

What types of cells are typically anaerobic in nature?

Answer 6

Connective Tissue (bone, cartilage, RBC’s), and skeletal muscle.

Question 7

What types of cells are aerobic in nature?

Answer 7

Heart, CNS, PNS, Skeletal Muscle.

Question 8

What is maximal VO2 a measure of?

Answer 8

Plateau of O2 consumption at maximal physical effort. (max performance output / aerobic fitness)

Question 9

When is VO2 Max reached?

Answer 9

When workload oxygen consumption remains at steady stage despite an increase in workload.

Question 10

What is a major factor of endurance?

Answer 10

Anaerobic or Ventilatory Threshold (AT or VT).

Question 11

What is the Ventilatory Threshold?

Answer 11

The point during exercise at which ventilation starts to increase at a faster rate than VO2 supplied.

Question 12

What begins to accumulate once Anaerobic Threshold is reached?

Answer 12

Lactic acid begins to build up since the work is now being performed anaerobically.

Question 13

What is the ventilatory threshold?

Answer 13

When breathing surpasses normal ventilation rate.

Question 14

For most people, at what % of VO2 max is AT or VT reached?

Answer 14

50 - 75% VO2 Max

Question 15

What is a major factor of Ventilatory Threshold?

Answer 15

The maximal ventilation of (air in & out) achieved by the lungs. Fitness is a big component.

Question 16

What is a physiological marker that is widely used as a predictor of performance (aerobic + skill)?

Answer 16

Lactacte Threshold

Question 17

Push the ceiling, raise the floor…. VO2 Max and LT, which quality is the ceiling and which is the floor? Why?

Answer 17

VO2 Max indicates an aerobic potential (ceiling), while LT is the maker for how much of that potential is being tapped into (floor).

Question 18

What is the gold standard for endurance or aerobic capacity testing?

Answer 18

Oxygen Consumption (VO2)

Question 19

What is a MET?

Answer 19

1 MET = Amount of oxygen a person consumes (or energy expended) per unit of body weight during 1 minute of rest.

Question 20

1 MET = ____ ?

Answer 20

1 MET = 3.5 mLO2/Kg * min

Question 21

What is the relationship with VO2 & MET’s?

Answer 21

With activity, VO2 increases and therefore MET”s increase.

Question 22

What is the conversion equation for converting to MET’s?

Answer 22

Divide by 3.5 mL O2/Kg