2860677
Frage 1
Frage
Which of the following is the ultimate source of energy for a muscular contraction?
Antworten
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NADH
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Oxygen
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ATP
Frage 2
Frage
Which of the following substances can be metabolized anaerobically?
Antworten
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Protein
-
Fat
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Carbs
Frage 3
Frage
The predominant energy system used during a training session depends primarily on the
Antworten
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session intensity
-
session duration
-
athlete's lean body mass
Frage 4
Frage
The production of lactic acid results from the activation of which of the following energy systems?
Antworten
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Fast glycolysis
-
Phosphagen
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Oxidative
Frage 5
Frage
Which of the following energy systems has the highest rate of energy production?
Antworten
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Phosphagen
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Fast glycolysis
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Fat oxidation
Frage 6
Frage
Approximately how many ATP are produced via the oxidative energy system from the degradation of one glucose molecule?
Antworten
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32
-
36
-
38
Frage 7
Frage
Which of the following energy systems is predominantly active at the initiation of all exercise?
Antworten
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phosphagen
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oxidative
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fast glycolysis
Frage 8
Frage
Which of the following enzymes catalyzes the rate-limiting step of glycolysis?
Antworten
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PFK
-
lactate dehydrogenase
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phosphorylase
Frage 9
Frage
To which of the following structures do the cross-bridges attach during muscle action?
Antworten
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Actin
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Myosin
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M-bridge
Frage 10
Frage
Which of the following substances regulates muscle actions?
Antworten
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Troponin
-
Potassium
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Calcium
Frage 11
Frage
Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit?
Antworten
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Acetylcholine
-
ATP
-
Creatine Phosphate
Frage 12
Frage
Which of the following muscle fibers types is the MOST beneficial for a marathon runner?
Antworten
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Type I
-
Type IIa
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Type IIx
Frage 13
Frage
When throwing a baseball, an athlete's arm is rapidly stretched just prior to throwing the ball. Which of the following structures detects and responds to the stretch by reflexively increasing muscle activity?
Antworten
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Golgi tendon orga
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Muscle Spindle
-
Extrafusal muscle
Frage 14
Frage
From which of the following is the heart's electrical impulse normally initiated?
Antworten
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AV Node
-
SA Node
-
Sympathetic nervous system
Frage 15
Frage
Which of the following occurs during the QRS complex of a typical ECG?
I. depolarization of the atrium
II. repolarization of the atrium
III. repolarization of the ventricle
IV. depolarization of the ventricle
Antworten
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I and III only
-
II and IV only
-
III and IV only
Frage 16
Frage
After a bout of resistance training, acute hormonal secretions provide all of the following information to the body EXCEPT
Antworten
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energy expended
-
metabolic demands of exercise
-
type of physiological stress
Frage 17
Frage
Which of the following hormones does NOT enhance muscle tissue growth?
Antworten
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Growth Hormone
-
Cortisol
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IGF-1
Frage 18
Frage
All of the following are functions of growth hormones EXCEPT?
Antworten
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Increase lipolysis
-
decrease collagen synthesis
-
increase amino acid transport
Frage 19
Frage
Which of the following hormones has the greatest influence on neural changes?
Antworten
-
Growth Hormone
-
Testosterone
-
IGF
Frage 20
Frage
Which of the following hormone levels is higher in women than men at rest
Antworten
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Insulin
-
Testosterone
-
Growth Hormone
Frage 21
Frage
What type of resistance training workout promotes the highest growth hormone increases following the exercise session?
Antworten
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Rest: 30sec Volume: High Sets: 3
-
Rest: 30sec Volume: High Sets: 1
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Rest: 30min Volume: High Sets: 3
Frage 22
Frage
Which of the following describes the knee joints?
Antworten
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cartilaginous
-
synovial
-
pivot
Frage 23
Frage
Which of the following is the definition of power?
Antworten
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Force x velocity
-
Mass x acceleration
-
Force x distance
Frage 24
Frage
To compare performances of Olympic weightlifters of different body weights, the classic formula divides the load lifted by the athlete's
Antworten
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lean body weight
-
body weight
-
body weight to the two-thirds power
Frage 25
Frage
During a free weight exercise, muscle force varies with the following except?
Antworten
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Perpendicular distance from the weight to the body joint
-
Joint angle
-
Movement acceleration
Frage 26
Frage
A vertical jump involves knee, hip, and shoulder movement primarily in which of the following anatomical planes?
Antworten
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Sagittal
-
Frontal
-
Transverse
Frage 27
Frage
An athlete is performing a concentric isokinetic elbow flexion and extension exercise. Which of the following type of lever does NOT occurs at the elbow during this exercise?
Antworten
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First Class
-
Second Class
-
Third Class
Frage 28
Frage
Which of the following muscle fiber types has the GREATEST potential to, when trained in a specific way, CHANGE into a more aerobic or oxidative form?
Antworten
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Type IIa
-
Type IIx
-
Type IIc
Frage 29
Frage
A weightlifter adds 30 mins of intense (>75% VO2 max) stationary bicycle riding every other day to her resistance training program. Which of the following describes the GREATEST effect this addition will have on her performance?
Antworten
-
Power gains will be compromised
-
Power gains will be enhanced
-
Power gains will remain the same
Frage 30
Frage
A 50-years-old female triathlete is concerned about osteoporosis. Which of the following exercises is the MOST beneficial for improving her bone mineral density?
Antworten
-
Front squat
-
Bench Press
-
Lat Pulldown
Frage 31
Frage
Which of the following muscle fiber types are "bypassed" as a result of selective recruitment that allows an Olympic weightlifter to generate maximum power during a 1RM snatch?
Antworten
-
I
-
IIa
-
IIx
Frage 32
Frage
Which of the following are the MOST effective stimulants of growth hormone production from a resistance training workout?
I. larger muscle mass exercise
II. small muscle mass exercise
III. high intensity and volume
Antworten
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I and III only
-
II and III only
-
III
Frage 33
Frage
The INITIAL decrease in muscular strength caused by detraining is due to undesired changes in which of the following systems?
Antworten
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cardiovascular
-
muscular
-
nervous
Frage 34
Frage
A 17-year-old high school cross-country runner has been training aerobically for six months in preparation for the upcoming season. Which of the following adaptations will occur in the muscles during that time?
Antworten
-
increased concentration of glycolytic enzymes
-
hypertrophy of Type I fiberes
-
transformation of Type I fiber to Type II fibers
Frage 35
Frage
The amount of blood ejected from the left ventricle during each beat is the
Antworten
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Cardiac Output
-
Heart Rate
-
Stroke Volume
Frage 36
Frage
All of the following normally increase during an aerobic exercise session EXCEPT
Antworten
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End-diastolic volume
-
Cardiac Output
-
Diastolic blood pressure
Frage 37
Frage
The mean arterial pressure is defined as the
Antworten
-
Average blood pressure throughout the cardiac cycle
-
Average of the systolic and diastolic blood pressures
-
Average of blood pressure and heart rate
Frage 38
Frage
Primary training adaptations of elite aerobically trained athletes include which of the following?
I. increased maximal oxygen uptake
II. decreased blood lactate concentration
III. increased running economy
Antworten
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I and III
-
II and I
-
I, II, and III
Frage 39
Frage
Which of the following is an early adaptation to acclimatizing to high altitude?
Antworten
-
increased resting cardiac output
-
increased stroke volume
-
decreased tidal volume
Frage 40
Frage
When males and females are compared relative to muscle cross-sectional area, it appears that the potential for force production is
Antworten
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Stronger in males
-
Greater in females
-
Equal in males and females
Frage 41
Frage
Which of the following is the MOST significant adaptation to chronic resistance training for an older adult?
Antworten
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Increased muscle mass
-
Increased cardiovascular fitness
-
Improved blood lipid profile
Frage 42
Frage
An eight-year-old boy dramatically increased his upper body strength after following a six month resistance training program. Which of the following is MOST likely responsible for this gain?
Antworten
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Improved neuromuscular functioning
-
Enhanced cross-sectional area
-
Increased number of muscle fibers
Frage 43
Frage
Growth cartilage in children is located at all of the following locations EXCEPT the
Antworten
-
diaphysis
-
epiphyseal plate
-
joint surface
Frage 44
Frage
All of the following are likely outcomes of preadolescent resistance training EXCEPT increased
Antworten
-
Strength
-
Bone Density
-
Hypertrophy
Frage 45
Frage
The condition characterized by a bone mineral density more than 2.5 SD below the young adult mean is called
Antworten
-
Sarcopenia
-
Osteopenia
-
Osteoporosis
Frage 46
Frage
Which of the following should be evaluated FIRST when designing a training program for a 68-year-old competitive female tennis player?
Antworten
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Cardiovascular fitness
-
Balance and agility
-
Medical history
Frage 47
Frage
Deconditioned female college athletes who participate in sports such as basketball and soccer appear to be at increased risk of developing injuries to the
Antworten
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Back
-
Knee
-
Neck
Frage 48
Frage
During the closing seconds of a basketball game, an athlete's team is down by one point and he has been awarded two free throw shots. The player is apprehensive about the outcome of the game. Which of the following best describes the athlete's situation?
Antworten
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He is experiencing state anxiey
-
He is in control of his arousal
-
His anxiety will improve his performance
Frage 49
Frage
An Olympic weightlifter attempting a personal record is able to ignore the audience to concentrate solely on her performance. Which of the following abilities is this athlete most likely using to perform exercise?
Antworten
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Selective attention
-
Dissociation
-
Somatic anxiety
Frage 50
Frage
Prior to performing the long jump, an athlete reviews and concentrates on the technique required to jump as far as possible. Which of the following strategies is the athlete using to prepare for the jump?
Antworten
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Focus on task-relevant cues
-
Trait anxiety
-
Reliance on experience
Frage 51
Frage
Which of the following is MOST important to achieve the ideal performance state?
Antworten
-
Personal Control
-
Fear of failure
-
Broad focus on the activity and the enviroment
Frage 52
Frage
An athlete's desire to perform to his or her potential is an example of
Antworten
-
Motive to avoid failure
-
Intrinsic motivation
-
Achievement motivation
Frage 53
Frage
For a high school American football team, if any player squats two times his body weight, his name is placed on the wall. This is an example of
Antworten
-
Negative reinforcement
-
Positive punishment
-
Positive reinforcement
Frage 54
Frage
How does an athlete's optimal level of arousal change with limited skill and ability to perform the activity?
Antworten
-
It Increases
-
It decreases
-
It is not related to the activity
Frage 55
Frage
All of the following are ingredients that qualify as dietary supplements in the US EXCEPT
Antworten
-
Milk
-
Iodine
-
Vitamin C
Frage 56
Frage
All of the following describes caffeine's role in improving athletic performance EXCEPT
Antworten
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Decreased urine production
-
Increased fat oxidation
-
Increased power production
Frage 57
Frage
Which of the following are the MOST closely linked in logarithmic relationship?
I. Intake of anabolic steroids
II. Intake of androstenedione
III. Increase in endogenous androgen
Antworten
-
I and III only
-
I and II only
-
II and III only
Frage 58
Frage
Which of the following substances has been shown by multiple research studies to improve strength performance?
Antworten
-
Creatine
-
Androstenedione
-
L-carnitine
Frage 59
Frage
Which of the following is the BEST reason for aerobic endurance athletes to avoid erythropoietin use?
Antworten
-
It may cause an unregulated increase in RBC production
-
Resistance to infectious disease may be impaired
-
It may reduce the ability of blood to carry oxygen
Frage 60
Frage
Which of the following proteins has an amino acid profile MOST similar to the body's needs?
Antworten
-
egg
-
soy
-
rice
Frage 61
Frage
Which of the following BEST explains the requirements for increased protein intake by athletes?
Antworten
-
Increased need for tissue repair
-
The quality of protein consumed
-
Restriction of calories to lose weight
Frage 62
Frage
Which of the following has the GREATEST influence on an athlete's dietary carbohydrate requirement?
Antworten
-
Current average daily fat intake
-
Body size and body fat percentage
-
Type, duration, and frequency of exercise
Frage 63
Frage
Which of the following BEST describes dietary fat consumption?
Antworten
-
Its restriction can be harmful to health and performance
-
It should never be higher than 40% of total calories
-
It should be less than 15% of total calories for healthy athletes
Frage 64
Frage
Which of the following is characteristic of anorexia nervosa?
Antworten
-
Preoccupation with food
-
Very low dietary fat intake
-
Secretive eating
Frage 65
Frage
When an eating disorder is suspected, the strength and conditioning professional should
Antworten
-
Require frequent weigh ins
-
Provide nutritional information
-
Encourage further assessment by an eating disorder specialist
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