Ex Phys - 04 Acute Response to Exercise

Cards from pptx file "acute response to exercise" titled CV Hemodynamics & Acute Responses to Exercise

60-80, 60-100

resting HR averages _________bpm, and normal range is ___________bpm

higher

pre-exercise HR is usually ___________ than resting because of an anticipatory increase in sympathetic activity

directly

HR is (indirectly/directly) proportional to increases in exercise intensity

1

HRmax remains constant day to day and usually declines _____ bp/yr

steady state HR

when workload is constant, HR increases rapidly until it reaches a plateau, also called ______________ and for each increase in workload, HR adjusts to a new ______(same)________ in 2-3 minutes

fast, slow

there are ________ and _______ phases of HR recovery after an abrupt stop to exercise

1-2, 18

fast phase of HR recovery is in the first _________ minutes and decrease in more than _____bpm is considered good

5

slow phase of HR recovery is after ___ or more minutes

fast

_______ phase heart rate recovery is a measure of fitness and predictor of mortality

BP

________________ response is a primary determinant for HR change when postural changes occur

lower, higher

when someone is standing (after sitting) there is _________ blood pressure and therefore ________ heart rate

stroke volume

____________ is a major determinant of cardiorespiratory endurance capacity

80-100, 100-120, 160-200

stroke volume is normally _________ mL at rest, with a max of _________mL among untrained and a max of _____________mL among trained endurance athletes

venous return

when considering stroke volume with postural change, with recumbent to standing ___________ to the heart is altered/lowered, so there is less stroke volume

5.0, 20-40

resting cardiac output is ______L/min and increases up to _______ L/min

cardiac output

postural change has little effect on __________________

CO

_____ = HR * SV

20

arterial blood O2 content is _____mL per 100 mL of blood

15, 4

mixed venous O2 content is _____ mL per 100mL of blood at rest, and ______ mL per 100mL of blood at VO2max

inactive, active

during exercise, blood flow is redirected from ___________ areas to __________ areas

sympathetic

the _______________________ nervous system is responsible for the redistribution of blood flow during exercise

muscle

during any form exercise, the tissue type getting the most CO is _________

kidney/liver/stomach/intestine

at rest, the tissue type getting the most CO is ___________

increases

during dynamic exercise, systolic BP (decreases/does not change/increases) in proportion to dynamic exercise intensity

does not change

during dynamic exercise, diastolic BP (decreases/does not change/increases) in proportion to dynamic exercise intensity

static, isometric

BP responses can be exaggerated (>200/175 mmHg) during _______ exercise, like _________ exercises

decrease, PV loss

there is a 10-15% ________ in plasma volume during exercise with prolonged exercise, and ______ is proportional to intensity with resistance exercise

CV drift

__________ appears as a gradual decrease in SV and increase in HR even though exercise intensity is constant; usually occurs with prolonged aerobic exercise and/or exercise in hot environments

12-20

resting respiratory rate is ___________ breaths/min

45-60

peak respiratory rate is ______________ breaths/min

0.5, 2.25

resting tidal volume is ______L/breath, and peak TV is _____L/breath

5, 175

resting ventilation is about ____L/min, at peak can be _____L/min

higher

there is greater ventilation with ___________ intensity exercise

post-exercise oxygen consumption

______________________ (also called oxygen debt) increases with high intensity anaerobic activities and is the total O2 consumed in recovery above resting consumed

ventilatory equivalent

the __________________ for oxygen is the ratio between VE and VO2 and indicated breathing economy

ventilatory threshold

________________________ is the point during exercise when ventilation (L/min) increases disproportionately to oxygen consumption and is approximately the same point lactate begins to accumulate in the blood

is not

pulmonary ventilation usually (is/is not) a limiting factor for performance