Final practice exam

grayere
Quiz by grayere, updated more than 1 year ago
grayere
Created by grayere over 4 years ago
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Question 1

Question
which of the following substances acts at the NMJ to excite the muscle fibers of the motor unit?
Answer
  • acetylcholine
  • creatine
  • ATP

Question 2

Question
a college volleyball player begins resistance training for the first time. what muscle fiber types will hypertrophy first?
Answer
  • fast twitch
  • slow twitch
  • muscle spindle

Question 3

Question
a 22 yr old soccer player begins resistance training for the first time. his chosen exercises include those for all major muscle groups. after 3 weeks, he notices an increase in lower extremity strength. which of the following best explains this athletes
Answer
  • improved motor control
  • increased hypertrophy
  • increase cross section area

Question 4

Question
which of the following results from adding resistance training to a marathoners aerobic exercise training program?
Answer
  • short-term endurance may improve
  • max o2 uptake increases
  • max o2 uptake decreases

Question 5

Question
a bundle of muscle fibers is called
Answer
  • fasiculus
  • motor unit
  • tetanus

Question 6

Question
to which of the following structures do the cross-bridges attach during muscle action?
Answer
  • actin
  • myosin
  • m- bridge

Question 7

Question
which of the following substances regulates muscle actions?
Answer
  • calcium
  • potassium
  • phosphorus

Question 8

Question
which of the following best describes what occurs during a concentric muscle action?
Answer
  • resistance is greater than muscle force
  • resistance is equal to muscle force
  • resistance is less than muscle force

Question 9

Question
which of the following will increase force produced during a concentric muscle action?
Answer
  • agonist prestretching
  • more calcium released in the myofibril
  • both of these

Question 10

Question
the knee joint can be described as
Answer
  • synovial
  • cartilaginous
  • multiaxial

Question 11

Question
which of the following defines power?
Answer
  • force * velocity
  • mass * acceleration
  • force * distance

Question 12

Question
to compare performances of lifters of different body weights, the classical formula divides
Answer
  • body weight to the 2/3 power
  • the lift by body weight
  • body weight squared

Question 13

Question
a vertical jump involves knee, hip, and shoulder movement in primarily which plane?
Answer
  • sagittal
  • frontal
  • transverse

Question 14

Question
a person is performing a concentric isokinetic elbow flexion and extension exercise. which of the following types of levers occur at the elbow during this exercise?
Answer
  • first class and third class
  • second class and third class
  • first class and second class

Question 15

Question
resistance exercise programs designed to stimulate new bone formation should emphasize all of the following EXCEPT
Answer
  • variation in exercise selection
  • progressive overload
  • metabolic specificity

Question 16

Question
a 17 year old HS cross country runner has been training aerobically for 6 months in preparation for the upcoming season. which of the following adaptations will occur in the muscles during that time?
Answer
  • increased concentration of glycolytic enzymes
  • hypertrophy of type I fibers
  • increased type II fibers

Question 17

Question
which of the following is NOT a primary function of cartilage?
Answer
  • aids in the attachment of muscle to bone
  • connects bones together
  • improves shock absorption in joints

Question 18

Question
which of the following occurs as a result of a combination of heavy resistance training and aerobic training?
Answer
  • increased cartilage thickness
  • decreased cartilage thickness
  • joint degeneration

Question 19

Question
in general, which of the following types of tissue has the poorest blood supply?
Answer
  • cartilage
  • tendon
  • muscle

Question 20

Question
which of the following is the ultimate source of energy for contraction?
Answer
  • ATP
  • NADH
  • O2

Question 21

Question
which of the following can be metabolized anaerobically?
Answer
  • carbohydrate
  • fat
  • protein

Question 22

Question
the energy system used depends primarily on the athlete's
Answer
  • exercise intensity
  • exercise duration
  • body composition

Question 23

Question
the production of lactic acid results from the activation of
Answer
  • fast glycolysis
  • the phosphagen system
  • fat oxidation

Question 24

Question
which of the following pathways/systems has the highest rate of energy production?
Answer
  • phosphagen system
  • fat oxidation
  • fast glycolysis

Question 25

Question
in the oxidative system approximately how many ATPs are produced from the degradation of 1 glucose molecule?
Answer
  • 38
  • 41
  • 36

Question 26

Question
which of the following pathways/systems supports the initiation of all exercise?
Answer
  • phosphagen system
  • fast glycolysis
  • slow glycolysis

Question 27

Question
which of the following enzymes catalyzes the rate limiting step of glycolysis?
Answer
  • PFK
  • lactate dehydrogenase
  • phosphorylase

Question 28

Question
following a bout of resistance exercise training, acute hormonal secretions provide all the following information to the body EXCEPT the
Answer
  • amount of physiological stress
  • metabolic demands of exercise
  • type of physiological stress

Question 29

Question
which of the following hormones enhance muscle tissue growth
Answer
  • growth hormone
  • cortisol
  • both of these

Question 30

Question
growth hormone provides all of the following physiological roles EXCEPT
Answer
  • decreased collagen synthesis
  • increased lipolysis
  • increased amino acid transport

Question 31

Question
which of the following hormones has the greatest influence on neural changes?
Answer
  • testosterone
  • IGF
  • growth hormone

Question 32

Question
through which of the following valves does blood flow after contraction of the left ventricle?
Answer
  • aortic
  • pulmonary
  • mitral (bicuspid)

Question 33

Question
which of the following occurs during the QRS complex of a typical ECG?
Answer
  • repolarization of the ventricle
  • repolarization of the atrium
  • depolarization of the atrium

Question 34

Question
in what portion of the lungs does gas exchange occur?
Answer
  • alveoli
  • trachea
  • bronchus

Question 35

Question
the amount of blood ejected from the left ventricle during each beat is the
Answer
  • stroke volume
  • a-vo2 difference
  • cardiac output

Question 36

Question
all of the following normally increase during aerobic exercise EXCEPT:
Answer
  • diastolic blood pressure
  • cardiac output
  • end diastolic volume

Question 37

Question
which of the following best describes the change in stroke volume during heavy resistance exercise?
Answer
  • stays the same
  • increases
  • increases, then plateuas

Question 38

Question
the mean arterial pressure is defines as:
Answer
  • average blood pressure throughout the cardiac cycle
  • average of systolic and diastolic blood pressures
  • average systolic blood pressure during exercise

Question 39

Question
high intensity, low repetition resistance training results in which of the following adaptations?
Answer
  • decreased capillary density
  • decreased tidal volume
  • no change in maximal o2 uptake

Question 40

Question
which of the following is an early adjustment to acclimatizing to high altitude?
Answer
  • increased resting cardiac output
  • decreased tidal volume
  • increased stroke volume

Question 41

Question
chronic training involving the fast glycolysis energy system results in improved buffering of which of the following substances?
Answer
  • hydrogen ions
  • blood lactate
  • glycogen

Question 42

Question
primary training adaptations of elite aerobically trained athletes include the following?
Answer
  • increased capillary density
  • increased running economy
  • decreased blood lactate concentration

Question 43

Question
when males and females are compared relative to muscle cross- sectional area, it appears that the potential for force production is:
Answer
  • greater in males
  • greater in females
  • equal in males and females

Question 44

Question
which of the following is the most significant adaptation to chronic resistance training in older adults?
Answer
  • increased muscle mass
  • increased cardiovascular fitness
  • improved blood lipid profile

Question 45

Question
an 8 yr old boy has observed dramatic increases in his upper-body strength following 6 months of resistance training. which of the following is most likely to be responsible for this gain?
Answer
  • increased size of muscle
  • increased number of muscle fibers
  • improved neuromuscular functioning

Question 46

Question
growth cartilage in children is located in all of the following locations EXCEPT:
Answer
  • the diaphysis
  • the epiphyseal plate
  • apophyseal insertion

Question 47

Question
all of the following are likely benifits of preadolescent resistance training EXCEPT increased:
Answer
  • muscle hypertrophy
  • bone density
  • resistance to injury

Question 48

Question
the condition characterized by a bone mineral density more than -2.5 SD below the young adult mean is called:
Answer
  • osteoporosis
  • osteopenia
  • sarcopenia

Question 49

Question
deconditioned college female athletes who participate in sports such as basketball and soccer appear to be at increased risk for developing injuries to the:
Answer
  • knee
  • growth plate
  • back

Question 50

Question
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 the lift?
Answer
  • selective attention
  • somatic anxiety
  • selective attention

Question 51

Question
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?
Answer
  • focusing on task relevant cues
  • state anxiety
  • MAF

Question 52

Question
which of the following is most important to achieving the ideal performance state?
Answer
  • personal control
  • broad focus on the activity and the environment
  • fear of failure

Question 53

Question
an athletes desire to perform to his/her potential is an example of:
Answer
  • intrinsic motivation
  • achievement motivation
  • dissociation

Question 54

Question
for the high school football team, if any player squats two times his bodyweight, his name is placed on the wall. this is an example of:
Answer
  • positive punishment
  • positive reinforcement
  • negative reinforcement

Question 55

Question
how does an athlete's amount, or latitude, of optimal arousal change with limited skill and ability of the activity?
Answer
  • it decreases
  • it increases
  • it has no effect
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