2902912
Questão 1
Questão
Which of the following muscles acts synergistically to the vastus lateralis during the upward movement phase of the squat?
Responda
-
biceps femoris
-
rectus abdominis
-
iliopsoas
Questão 2
Questão
Which is an approximate rest interval for a middle distance runner performing 800-m running intervals in 2 minutes?
Responda
-
6 minutes
-
4 minutes
-
3 minutes
Questão 3
Questão
Which of the following human muscle fiber types possesses the highest capillary density?
Responda
-
I
-
lIa
-
lIb
Questão 4
Questão
Which of the following upper arm muscle groups and types of muscle actions are associated with the biceps curl exercise?
I. flexors, eccentric
II. extensors, eccentric
III. flexors, concentric
IV. extensors, concentric
Responda
-
I and III only
-
II and III only
-
II and IV only
Questão 5
Questão
As compared to males, the potential of force production in females per muscle cross-sectional area is
Responda
-
higher.
-
equal.
-
lower.
Questão 6
Questão
A 176 Ib (80 kg) athlete has an average daily intake of 450g of carbohydrate, 75g of protein, and 100g of fat. What percent of the total kilocalorie intake is fat?
Responda
-
30
-
35
-
40
Questão 7
Questão
Which cardiovascular adaptations to chronic aerobic exercise contribute the most to improved aerobic endurance performance?
Responda
-
increased maximal cardiac output
-
decreased resting blood pressure
-
decreased resting heart rate
Questão 8
Questão
An untrained college-aged athlete begins a strength training program. After training for 3 weeks, her strength increases dramatically. Which of the following is the most influential factor responsible for this improvement?
Responda
-
increased cross-sectional area of muscle fibers
-
improved neuromuscular efficiency
-
increased quantity of muscle fibers
Questão 9
Questão
Which of the following ankle movements and planes of action occur with the upward movement phase of the standing calf (heel) raise exercise?
Responda
-
plantar flexion, sagittal
-
plantar flexion, frontal
-
dorsiflexion, frontal
Questão 10
Questão
All of the following applied program design variables contribute to significant exercise-induced increases in serum testosterone concentrations EXCEPT:
Responda
-
high volumes
-
large muscle group exercise
-
long rest periods
Questão 11
Questão
Which of the following exercises involves a first-class lever?
Responda
-
triceps pushdown
-
leg (knee) curl
-
dumbbell biceps curl
Questão 12
Questão
The depletion of which fuel sources may contribute to fatigue in prolonged aerobic events AND repeated anaerobic exercise bouts?
Responda
-
muscle glycogen
-
free fatty acids
-
creatine phosphate
Questão 13
Questão
Which of the following causes the largest increase in serum growth hormone concentration?
Responda
-
high-intensity resistance exercise
-
low-intensity aerobic exercise
-
oral ingestion of arginine
Questão 14
Questão
Which is a characteristic of fast-twitch muscle fibers?
Responda
-
high power output
-
high resistance to fatigue
-
low anaerobic enzyme content
Questão 15
Questão
What type of lipid comprises the majority of dietary fat?
Responda
-
triglycerides .
-
low-density lipoproteins
-
high-density lipoproteins
Questão 16
Questão
Which activity places the LEAST metabolic demand on the phosphagen energy system?
Responda
-
cross-country skiing
-
basketball
-
football
Questão 17
Questão
Which is a characteristic of a vertical chest press machine versus a free weight bench press?
Responda
-
less skill is required to perform the exercise
-
less stress is placed on the prime movers
-
more muscle groups are trained simultaneously
Questão 18
Questão
In what elbow position is the torque generating capabilities of the elbow flexors greatest?
Responda
-
90° elbow flexion
-
0° elbow flexion, since muscles are at their resting length
-
120° elbow flexion
Questão 19
Questão
What energy system is used the most during a 400 m sprint race?
Responda
-
fast glycolysis
-
slow glycolysis
-
Phosphagen
Questão 20
Questão
Which exercise stimulates the greatest increase in axial skeleton bone mineral density?
Responda
-
lying triceps extension
-
lat pulldown
-
shoulder press
Questão 21
Questão
Which of the following is a dietary source of an incomplete protein?
Responda
-
eggs
-
fish
-
legumes
Questão 22
Questão
Which describes the proper position of the lumbar spine during the performance of the back squat?
Responda
-
lordotic
-
flexed
-
kyphotic
Questão 23
Questão
Which substrates requires oxygen to be available to allow it to be metabolized for energy for exercise?
I. triglycerides
II. muscle glycogen
III. amino acids
IV. blood glucose
Responda
-
I and III only
-
II and III only
-
II and IV only
Questão 24
Questão
Dynamically pre-stretching a muscle is associated with which type of subsequent muscle action?
Responda
-
eccentric
-
concentric
-
isometric
Questão 25
Questão
Which is an indicator of anorexia nervosa?
Responda
-
a fear of becoming obese
-
frequent weight fluctuations
-
a binge-purge eating pattern
Questão 26
Questão
Which decreases as a result of resistance training and increases due to aerobic training?
Responda
-
mitochondrial density
-
glycogen stores
-
creatine phosphate stores
Questão 27
Questão
Performance decrements from dehydration among aerobic athletes may begin to occur after the loss of what percentage of body mass?
Responda
-
3
-
1
-
5
Questão 28
Questão
Which competitive situations would inspire an athlete with a high motive to achieve success (MAS)?
Responda
-
a challenging situation in which the probability of success to failure is even
-
an easy competition in which success is virtually guaranteed
-
a very difficult situation in which the likelihood of success is limited
Questão 29
Questão
Which is the most appropriate course of action if an eating disorder is suspected with an athlete?
Responda
-
Monitor the athlete's food intake.
-
Provide comprehensive nutrition information.
-
Refer the athlete to the team physician.
Questão 30
Questão
All are changes to collagen fibrils within a tendon in response to a resistance training program EXCEPT increased
Responda
-
decrease in cross section area
-
greater number of covalent cross-link with the hypertrophied fiber
-
increase in collagen fibril diameter
Questão 31
Questão
Which of the following events occurs during a concentric muscle action?
Responda
-
the H-zone decreases as the Z-discs are pulled toward each other
-
the actin cross-bridges attach to the myosin filaments
-
each sarcomere is stimulated by a motor neuron
Questão 32
Questão
All are potential indicators of overtraining EXCEPT::
Responda
-
increased resting blood pressure
-
decreased exercise heart rate
-
decreased muscle glycogen stores
Questão 33
Questão
When lifting maximal loads, the use of a weight belt may provide the greatest benefits when performing which of the following exercises?
Responda
-
front squat
-
bench press
-
machine shoulder press
Questão 34
Questão
A 6'2" (188 cm), 220 Ib (100 kg) college football player desires to gain muscle weight. Which of the following should be his first nutritional priority if his current 3000 kcal/day intake consists of 18% protein (1.4 g/kg), 55% carbohydrate (4.1g/kg), and 27% fat (0.9g/kg)?
Responda
-
decrease fat
-
increase protein
-
increase kcals
Questão 35
Questão
During a single aerobic exercise session, oxygen is delivered to the working muscles at an elevated rate due to an increase in:
Responda
-
cardiac output.
-
total blood hemoglobin.
-
blood glucose.
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