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CSCS Qs > Exercise Science > Flashcards

Exercise Science Flashcards

(75 cards)

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1
Q

Which connective tissue within a muscle pulls on the tendon during contraction?

A

Perimysium

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2
Q

Which effect is responsible for determining the direction of the reaction during rephosphorylation via the phosphagen system?

A

Mass action effect

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3
Q

Which sarcomere structure attaches to filaments that contract during concentric contraction?

A

Z line

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4
Q

Which of the following proprioceptors respond to a change in muscle length?

A

Muscle Spindles

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5
Q

An athlete contracts the gluteus maximus to enhance the stretch in the hip flexors. Which aspect of the neuromuscular system is being stimulated?

A

Reciprocal inhibition

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6
Q

Which of these is responsible for the knee-jerk reflex?

A

Muscle Spindles

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7
Q

Rotational work is a function of which of the following factors?

A
  1. Angular displacement

2. Torque

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8
Q

Type IIa muscle fibers are characterized by which of the following?

A

High anaerobic enzyme content

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9
Q

What method is used to calculate power?

A

Velocity x F

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10
Q

While skating, which of these hip movements depends on the gluteus maximus for a hockey athlete?

A

External hip rotation

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11
Q

Which of the following terms refers to increased end-diastolic volume stretching the myocardial fibers resulting in increased systolic injection?

A

Frank-Starling mechanism

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12
Q

An athlete displaying decreased performance, increased resting heart rate, and altered immune function is likely suffering from which of the following?

A

Non-functional overreaching

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13
Q

How is the majority of CO2 removed from cells transported for exhalation?

A

Bicarbonate ions

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14
Q

What motion occurs at the knee during the late support phase of sprinting?

A

Extension

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15
Q

The calf muscles act as which type of lever when raising the body onto the balls of the feet?

A

Second Class

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16
Q

“Oxygen uptake” refers to which of the following?

A

Amount of oxygen consumed by bodily tissues (p.118)

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17
Q

What event will be most limited by drop in cellular pH?

A

400m dash

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18
Q

A muscle has the maximum force production capability in which of the following scenarios:

A

Muscle is at resting length

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19
Q

Which of the following activities results in the greatest EPOC?

A

10 total sets @ 80-90% 1RM

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20
Q

At what age does peak height velocity typically occur?

A

Ages 12 to 14 p.137

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21
Q

Which of these actions describes transverse plane abduction of the shoulder?

A

Backhand tennis stroke P. 26

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22
Q

Which joint is stabilized by the following: supraspinatus, infraspinatus, subscapularis and teres minor?

A

Glenohumeral

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23
Q

Which of the following valves prevents blood backflow during diastole?

A

Semilunares valves

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24
Q

Whichofthefollowingreactionsistheprimarycauseofmetabolicacidosis(i.e.,thedecreaseinintramuscular pH during high-intensity, fatiguing exercise)?

A

ATP → ADP + Pi + H+

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25
What energy systems produces ATP at the quickest rate?
Phosphagen
26
Approximately how many net ATP are produced via the oxidative energy system from the metabolism of one glucose molecule?
38
27
What energy substrate cannot be depleted during extreme exercise intensities or durations
ATP
28
What substance can be metabolized anaerobically?
Carbohydrates
29
Approximately how long does it take for detraining to begin in terms of strength adaptations?
4 weeks
30
What is the first step of General Adaptation Syndrome?
Alarm Reaction
31
Which of the following hormones binds to receptors on the cell surface?
Peptide
32
Which of the following hormones is synthesized from amino acids?
Serotonin
33
What would you use to define an impulse during a sprint?
Total force x Ground contact period
34
Which system provides energy for high intensity events lasting 30 seconds to 2 minutes?
Fast glycolysis
35
Which heart chamber experiences the highest increase in wall thickness and volume during aerobic training?
Left Ventricle
36
Which connective tissue within a muscle pulls on the tendon during contraction?
Perimysium
37
An athlete looking to decrease lactate accumulation during higher intensity exercise should do what?
Train around or above OBLA
38
Postural muscles consist primarily of which muscle fiber type?
Type I
39
Testosterone binds to receptors inside the cell and on the cell surface T/F
True
40
What is the maximal cardiac output possible during intense activity?
20-22L/m
41
Hormones only interact with a single receptor T/F
False
42
Motor units are recruited in selective order based on recruitment threshold and firing rate
Size principle
43
not a cause of EPOC?
Decreased protein turnover
44
following principles should be followed to increase bone remodeling?
I. Specificity of loading II. High-impact activities III. Progressive overload
45
Which type of phosphorylation occurs in the electron transport chain?
Oxidative
46
During ventricular contraction, which valve stops the backflow of blood from the ventricle to the atrium on the right side of the heart?
Tricuspid valve (12)
47
Theoretically, supercompensation occurs during which phase of the GAS?
Resistance phase
48
What condition may be experienced with a decrease engagement of available range-of-motion in an older person?
Fibrosis
49
Which of the following tendon insertion locations provides an advantage in speed-dependent sports?
Insertion closer to the joint (23)
50
At what point is motor unit myelination complete?
Following puberty
51
With consistent aerobic training, what are the possible adaptations?
Rise in capillary density in muscle fibers (121-122)
52
The vertical jump is primarily performed in which anatomical plane?
Sagital
53
following neural adaptations occur as a result of anaerobic training?
I. Increased agonist recruitment III. Increased firing rate IV. Decreased inhibitory mechanisms
54
On an ECG, the P-Wave represents which of the following?
Depolarization of the atria
55
Fibrous attachments have which of the following characteristics?
Contiguous with muscle sheaths and connective tissues
56
An increase in muscle contraction rate, force production, and metabolic enzyme activity can be attributed to which 'flight or fight' mode hormone?
Catecholamines
57
neural adaptations occur with chronic resistance training?
I. Increased efficiency II. Delayed fatigue in contractile mechanisms IV. Improved synchronization of agonist, synergist, and antagonist muscles
58
which does not show evidence of promoting serum testosterone increase
Extender rest periods
59
On an ECG, which of the following represents ventricular repolarization?
T-wave
60
Which of the following is the most accurate method of measuring intensity?
Blood Lactate Concentration
61
Which chamber of the heart initially collects blood from the venous system?
Right atrium
62
The stretch-shortening cycle is influenced by which sensory structure?
Muscle spindles
63
The left ventricle is responsible for which of the following?
Pumping blood through the body
64
The deltoid is primarily responsible for which sagittal plane motion?
Flexion
65
On an ECG, which of the following represents ventricular repolarization?
T wave
66
The axial skeleton includes which of the following bones?
Vertebral column, coccyx, ribs, sternum
67
Exchange of nutrients between blood and tissues occurs in which of the following structures?
Capillaries
68
Among other motions, the external oblique is responsible for which of the following?
Contralateral torso rotation
69
Which of the following valves prevents blood backflow during diastole?
Semilunar valves
70
Which enzyme catalyzes the reaction that occurs during the contraction phase?
Myosin ATPase
71
When the glottis is fully open, the alveolar pressure is equal to which of the following?
Atmospheric pressure
72
Which area of the spine is known to be prone to between 85% to 90% of disk herniations?
L4 to S1
73
The AV bundle serves which of the following functions?
Conducting electrical impulse to the ventricles
74
Which muscles aid in inspiration during heavy breathing?
Sternocleidomastoids
75
The second generation airway passages are known as which of the following?
Bronchi

CSCS Qs (1 decks)

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