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CSCS Qs > Exercise Science > Flashcards

Exercise Science Flashcards

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
Q

What energy systems produces ATP at the quickest rate?

A

Phosphagen

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26
Q

Approximately how many net ATP are produced via the oxidative energy system from the metabolism of one glucose molecule?

A

38

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27
Q

What energy substrate cannot be depleted during extreme exercise intensities or durations

A

ATP

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28
Q

What substance can be metabolized anaerobically?

A

Carbohydrates

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29
Q

Approximately how long does it take for detraining to begin in terms of strength adaptations?

A

4 weeks

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30
Q

What is the first step of General Adaptation Syndrome?

A

Alarm Reaction

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31
Q

Which of the following hormones binds to receptors on the cell surface?

A

Peptide

32
Q

Which of the following hormones is synthesized from amino acids?

A

Serotonin

33
Q

What would you use to define an impulse during a sprint?

A

Total force x Ground contact period

34
Q

Which system provides energy for high intensity events lasting 30 seconds to 2 minutes?

A

Fast glycolysis

35
Q

Which heart chamber experiences the highest increase in wall thickness and volume during aerobic training?

A

Left Ventricle

36
Q

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

A

Perimysium

37
Q

An athlete looking to decrease lactate accumulation during higher intensity exercise should do what?

A

Train around or above OBLA

38
Q

Postural muscles consist primarily of which muscle fiber type?

A

Type I

39
Q

Testosterone binds to receptors inside the cell and on the cell surface T/F

A

True

40
Q

What is the maximal cardiac output possible during intense activity?

A

20-22L/m

41
Q

Hormones only interact with a single receptor T/F

A

False

42
Q

Motor units are recruited in selective order based on recruitment threshold and firing rate

A

Size principle

43
Q

not a cause of EPOC?

A

Decreased protein turnover

44
Q

following principles should be followed to increase bone remodeling?

A

I. Specificity of loading
II. High-impact activities
III. Progressive overload

45
Q

Which type of phosphorylation occurs in the electron transport chain?

A

Oxidative

46
Q

During ventricular contraction, which valve stops the backflow of blood from the ventricle to the atrium on the right side of the heart?

A

Tricuspid valve (12)

47
Q

Theoretically, supercompensation occurs during which phase of the GAS?

A

Resistance phase

48
Q

What condition may be experienced with a decrease engagement of available range-of-motion in an older person?

A

Fibrosis

49
Q

Which of the following tendon insertion locations provides an advantage in speed-dependent sports?

A

Insertion closer to the joint (23)

50
Q

At what point is motor unit myelination complete?

A

Following puberty

51
Q

With consistent aerobic training, what are the possible adaptations?

A

Rise in capillary density in muscle fibers (121-122)

52
Q

The vertical jump is primarily performed in which anatomical plane?

A

Sagital

53
Q

following neural adaptations occur as a result of anaerobic training?

A

I. Increased agonist recruitment
III. Increased firing rate
IV. Decreased inhibitory mechanisms

54
Q

On an ECG, the P-Wave represents which of the following?

A

Depolarization of the atria

55
Q

Fibrous attachments have which of the following characteristics?

A

Contiguous with muscle sheaths and connective tissues

56
Q

An increase in muscle contraction rate, force production, and metabolic enzyme activity can be attributed to which ‘flight or fight’ mode hormone?

A

Catecholamines

57
Q

neural adaptations occur with chronic resistance training?

A

I. Increased efficiency
II. Delayed fatigue in contractile mechanisms
IV. Improved synchronization of agonist, synergist, and antagonist muscles

58
Q

which does not show evidence of promoting serum testosterone increase

A

Extender rest periods

59
Q

On an ECG, which of the following represents ventricular repolarization?

A

T-wave

60
Q

Which of the following is the most accurate method of measuring intensity?

A

Blood Lactate Concentration

61
Q

Which chamber of the heart initially collects blood from the venous system?

A

Right atrium

62
Q

The stretch-shortening cycle is influenced by which sensory structure?

A

Muscle spindles

63
Q

The left ventricle is responsible for which of the following?

A

Pumping blood through the body

64
Q

The deltoid is primarily responsible for which sagittal plane motion?

A

Flexion

65
Q

On an ECG, which of the following represents ventricular repolarization?

A

T wave

66
Q

The axial skeleton includes which of the following bones?

A

Vertebral column, coccyx, ribs, sternum

67
Q

Exchange of nutrients between blood and tissues occurs in which of the following structures?

A

Capillaries

68
Q

Among other motions, the external oblique is responsible for which of the following?

A

Contralateral torso rotation

69
Q

Which of the following valves prevents blood backflow during diastole?

A

Semilunar valves

70
Q

Which enzyme catalyzes the reaction that occurs during the contraction phase?

A

Myosin ATPase

71
Q

When the glottis is fully open, the alveolar pressure is equal to which of the following?

A

Atmospheric pressure

72
Q

Which area of the spine is known to be prone to between 85% to 90% of disk herniations?

A

L4 to S1

73
Q

The AV bundle serves which of the following functions?

A

Conducting electrical impulse to the ventricles

74
Q

Which muscles aid in inspiration during heavy breathing?

A

Sternocleidomastoids

75
Q

The second generation airway passages are known as which of the following?

A

Bronchi

CSCS Qs (1 decks)

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