Ex Phys Home
1. For the average individual, total blood volume approximates how many liters?
A. 3
B. 4
C. 5
D. 6
2. Another name for red blood cells is:
A. Leukocytes
B. Erythrocytes
C. Platelets
D. Reticulocytes
3. The average increase in VO2 max from training studies is:
A. 15% to 20%
B. 20% to 30%
C. 5% to 10%
D. 10% to 15%
4. What role does myoglobin play in aerobic exercise?
A. Transport of oxygen in the blood
B. Binds to electrons in the electron transport chain
C. It shuttles the oxygen molecules from the cell membrane to mitochondria
D. Shuttles hydrogens into the TCA cycle
5. If you utilize fat more efficiently, how will this effect glycogen depletion?
A. Spare glycogen
B. No effect
C. Increase glygogen usage
D. None of the above
6. What does ejection fraction mean?
A. The volume of blood left after systole
B. The percent of blood pumped out of the ventricle
C. The volume of blood pumped per beat
D. The volume of blood pumped per minute
7. What does (vascular) compliance mean?
A. Contractility of arteries and arterioles
B. Strength of arteries
C. Limited ability arteries have to expand (diameter) and increase vascular volume
D. Stretch of all connective tissue structures
8. What would an average ejection fraction be at rest?
A. 40%
B. 50%
C. 60%
D. 70%
9. SV increases with exercise until what % VO2 max (range) in untrained individuals?
A. 70-90%
B. 90-100%
D. 40-60%
10. What two words best describe the correct exercise intensity to optimize fat as fuel?
A. Highly Challenging
B. Comfortable but Unchallenging
C. Uncomfortable but Challenging
D. Comfortable but Challenging
11. The oxidation of fat means?
A. An increase in lipid storage
B. The breakdown or burning of fat
C. Increase in fatty acids
D. Decrease in mitochondria function
12. Increased blood flow to muscle immediately following an exercise set?
A. Peripheral hypertrophy
B. Hyperdemia
C. Exercise hyperemia
D. Passive hyperemia
13. Arteriole venous oxygen difference (a-VO2) refers to what?
A. Increased hematocrit from increased plasma volume
B. Redistribution of peripheral blood flow
C. Peripheral blood flow
D. Extraction of oxygen from the capillary bed
14. Which has a more linear response to increasing exercise: HR or O2?
A. Heart rate (HR)
B. Oxygen consumption (O2)
C. Varies with fitness level
D. No difference
15. Heart rate monitors transmit a radio signal by a process called?
A. Telemetry
B. Electrocardiography
C. Conduction
D. None of the above
16. Ideally a VO2 max protocol should last how long?
A. 6 to 10 minutes
B. 8 to 12 minutes
C. 10 to 14 minutes
D. 10 to 16 minutes
17. What fiber type would be more associated with increased aerobic capacity?
A. Type IIb
B. Type IIa
C. Type I
D.Type IIc
18. Where does most of the lipid come from that fuels muscle contraction?
A. Mobilization of free fatty acids
B. FFA in plasma
C. Adipose tissue
D. Within contracting skeletal muscle
19. The atrial contraction or ‘Kick’ accounts for what % of ventricular filling?
A. 10%
B. 20%
C. 30%
D. 40%
20. Cardiac output is equal to?
A. Stroke volume times heart rate
C. 25L/Min at rest
D. Ejection fraction
21. Which of the following is NOT a glycolytic enzyme?
A. Phosphorylase
B. Succinate dehydrogenase
C. Phosphofructokinase
D. Lactate dehydrogenase
22. What is the lactate threshold?
A. The concentration of lactate before exercise
B. The concentration of lactate after exercise
C. A physiological marker associatied with skill and coordination
D. A physiological marker that is closely associated with aerobic endurance
23. What does buffering capacity refer to?
A. Enzyme activity in the muscle
B. Speed of hydrolysis of ATP
C. The muscle’s capacity to neutralize the acid that accumulates during glycolysis
D. Dynamic muscle action‘s contraction capability
24. When asked, 'what is the optimal intensity for a fat burning workout', which of the following answers is the best recommendation?
A. Exercise where you feel the burn
B. To burn more fat, burn more calories (comfortable but challenging intensity)
C. Choose a catabolic intensity
D. Train at 70% to 80% of your maximum heart rate
25. Mathmatically, which of the following represents the FICK equation?
A. VO2 = Q x a-v O2 difference
B. VO2 = SV x HR x a-v O2 difference
C. VO2 = (EDV-ESV) x HR x a-v O2 difference
D. All of the above