Exam Questions and CORRECT Answers
Which of the following muscles acts as an antagonist to the rectus femoris during the upward
movement phase of the low-bar back squat? - CORRECT ANSWER - biceps femoris
Which of the following upper arm muscle groups and types of muscle actions are associated with
the downward phase of a dumbbell biceps curl exercise?
Primary muscle group Primary muscle action
A. flexors concentric
B. extensors eccentric
C. flexors eccentric
D. extensors concentric - CORRECT ANSWER -C
Which of the following is an approximate rest interval for a middle distance runner performing
800-m running intervals in 2 min? - CORRECT ANSWER - 6 min
A 165-lb (75-kg) athlete has an average daily intake of 450 g of carbohydrate, 75 g of protein,
and 100 g of fat. What percent of the total kilocalorie intake is carbohydrate? - CORRECT
ANSWER - 60%
A 110-lb (50-kg) marathon runner started her pre-race taper and chose to carbohydrate load prior
to the race. Approximately how many grams of carbohydrates should she consume per day? -
CORRECT ANSWER - 500
As compared to males, the potential for force production of females per muscle cross-sectional
area is - CORRECT ANSWER - equal
, Which of the following cardiovascular adaptations to chronic aerobic exercise contributes the
most to improved aerobic endurance performance? - CORRECT ANSWER - increased
maximal cardiac output
Which of the following events occurs in the hamstring muscles during the concentric muscle
action of leg (knee) curl exercise? - CORRECT ANSWER - the H-zone decreases as the
Z-discs are pulled toward each other
The depletion of which of the following fuel sources may contribute to fatigue in prolonged
aerobic endurance events and repeated anaerobic exercise bouts? - CORRECT ANSWER -
muscle glycogen
Which of the following situations would inspire an athlete with a high motive to achieve
success? - CORRECT ANSWER - a challenging situation in which the probability of
success to failure is even
Which of the following is a characteristic of fast-twitch muscle fibers? - CORRECT
ANSWER - high power output
Which of the following activities places the LEAST metabolic demand on the phosphagen
energy system? - CORRECT ANSWER - cross-country skiing
An athlete is performing an isokinetic test at 240 degrees/sec. Which of the following BEST
describes the torque produced during an eccentric muscle action compared to a concentric
muscle action? - CORRECT ANSWER - 120% greater
Which of the following exercises increases axial bone mineral density MOST? - CORRECT
ANSWER - shoulder press
Which of the following is an incomplete protein? - CORRECT ANSWER - beans