final review

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how dos cardiac output at a given sub-max work rate adapt

does not really change, just below

which component of cardiac output is responsible for increased max Q

increased SV??

which of the following is NOT a factor of enhanced blood flow to muscle after training

increased blood pressure

what off-sets the decrease in resistance due to increased capillaries to maintain flow

increased blood volume

the respiratory pump increases blood flow (and stroke volume) by

increasing venous return (preload)

which of the following statements about muscular endurance is FALSE

it is closely related to cardiorespiratory endurance

which the following is FALSE regarding cardiac hypertrophy

it is typically accompanied by decreased ventricular volume

the presence/abundance of __ drives the negative feedback loop -inhibiting glycolysis

lactic acid

at which intensity is heart rate not impacted by aerobic endurance training

maximal

which of the following is FALSE regarding aerobic endurance training adaptations

metabolic economy increases (decreased O2 at same speed)

why doesn't blood flow through the coronary arteries during ventricular systole

the flaps of the aortic semilunar valve blocks the arteries

one of the primary drivers are cardiovascular drift

thermoregulation

an increase in parasympathetic (vagal) tone will result in

decreased resting heart rate

which of the following is TRUE regarding SUBMAXimal endurance capacity

submax is more closely related to competitive performance

why does it take longer to return to resting levels following exercise

2 of these: waste (CO2) removal continues after exercise ends/??

stroke volume for this subject increased by 40%, to what extent did max performance (work rate) improve

20%: from 18 to 22 km/h

which of the following forms of interval training likely were incorporated into the training regimen

5 x 800m; 15 sec rest

what is the limiting factor for aerobic capacity

CV system delivery and availability

during exercise, how does blood pressure change with increased intensity

SBP increases and DBP doesn't change

why is there a decrease in heart rate (from pre to post) at the same work rate

SV increases

why does the decreased diffusion gradient cause reduced flow into tissues? Flow = change in pressure/ resistance

absolute pressure gradient decreases

which of the 4 factors of stroke volume does NOT increase following endurance training

afterload (aortic pressure)

which component(s) of stroke volume experience positive adaptation through aerobic training

all of these: preload/ ventricular volume and strength/ afterload

because the body doesn't store oxygen, we can estimate aerobic ATP production by measuring

all of these: respiratory exchange expired oxygen volumes expired carbon dioxide volumes

blood flow =

blood pressure gradient/vascular resistance

why is RER lower for fat metabolism (oxidation)

fat requires more oxygen to fully metabolize

which of the following blood pressures is NOT affected following endurance training

healthy subject resting BP

max heart rate is

highest heart rate achieved during all-out effort

how does the CV system, during cardiovascular drift, change to aid thermoregulation

increased heart rate

though enzyme activity increases, most anaerobic improvements can be attributed to

increased muscular strength

capillary-to-fiber ratio is an effective measure of which blood flow adaptation

increased number of muscle capillaries

only by looking at the graph, which of the following training adaptations have occurred

increased stroke volume increased aerobic power

which of the following is MOST responsible for decreased ESV

increased ventricular muscle mass

sport specific adaptations support the theory that adaptations are

muscle specific

is pulmonary ventilation the MOST LIKELY limitation to maximum performance

no

what affect does oxygen have on ATP-PCr system

oxygen has no impact on ATP-PCr reactions

what causes gases to flow across the respiratory membrane

partial pressure gradients

why does blood flow

pressure gradients

the final product of glycolysis (for glycogenolysis) is

pyruvic acid

how do left ventricle changes differ in resistance and endurance athletes

resistance athletes don't increases LV volume

what is the main reason for the arterial-venous pressure differential

resistance of the vessels


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