Chapter 6 Flashcards

1
Q

THe primary function of the cardiovascular system during aerobic exercise is to ?

A

delever oxygen and nutritents to the muscle

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2
Q

cardiac output

A

the amount of blood pumped by the heart in leters per minute

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3
Q

cardiac output is determined by?

A

the quantity of blood ejected with each beat (stroke volume) and the hearts rate of pumping (heart rate)

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4
Q

stroke volume

A

blood ejected with each beat

Volume=how much

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5
Q

Cardiac output formula

A

stroke volume x heart rate

Q+SV x xHR

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6
Q

college men maximal stroke volume

A

100 and 115 ml of blood

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7
Q

what is responsible for the regulation of stroke volume?

A

end-diastolic volume and the action of catecholamines (epinephrine and norepinephrine

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8
Q

end-diastolic volume

A

the volume of blood available to be pumped by the left ventricle at the end of the filling phase (diastole

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9
Q

venous return

A

the amount of blood returning to the hear

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10
Q

frank-starling mechanism

A

with aerobic exercise more blood returns to the heart diastolic volume is increased, myocardial fibers become more stretched , more forceful contraction of systolic ejection

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11
Q

how to calculate maximal HR

A

220-age plus or minus 10

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12
Q

how to calculate VO2 max?

A

cardiac output x arteriovenous oxygen difference

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13
Q

systolic blood pressure

A

the pressure exerted against the arterial walls as blood is forcefully ejected during ventricular contraction (systole)

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14
Q

diastolic blood pressure

A

the pressure exerted against the arterial walls when no blood is being forcefully ejected through the vessels

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15
Q

total peripheral resistance

A

the resistance of the entire systemic circulation

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16
Q

acute aerobic exercies results in an increase of?

A
cardiac output
stroke volume
HR
oxygen uptake
systolic blood pressure 
blood flow to active muscles
17
Q

acute aerobic exercise results in a decrease of?

A

diastolic blood pressure (decrease=diastolic)

18
Q

minute ventilation

A

the volume of air breathed per minute (increases with exercise)

19
Q

tidal volume

A

the amount of air inhaled and exhaled with each breath

20
Q

aerobic endurance training adaptations of muscular strength and sprint speed, anaerobic power, and maximal rate of force production

A

no charge

21
Q

aerobic endurance training adaptations for muscular endurance and aerobic power

A

increase

22
Q

aerobic endurance training adaptations for fiber size, myofibrillar activity, cytoplasmic density and myosin heavy chain protein

A

no change

23
Q

aerobic endurance training adaptations for capillary density and mitochondrial density

A

increases

24
Q

aerobic endurance training adaptations for creatine phosphokinase, myokinase and sodium potassium atpase

A

increase

25
Q

aerobic endurance training adaptation for stored ATP, stored creatine phosphate, stored glycogen, stored triglycerides

A

increases

26
Q

aerobic endurance training adaptations for ligament strength and tendon strength

A

increases

27
Q

aerobic endurance training adaptations for % body fat

A

decreases

28
Q

aerobic endurance training adaptationsfor fat-free mass

A

no change

29
Q

biggesst change is chronic cardiovasular funtion of aerobic endurance training

A

increase in maximal cardiac output