EXS-340 Midterm Zeigler
What does MAP stand for in the context of blood pressure?
Mean Arterial Pressure
How is Mean Arterial Pressure (MAP) calculated?
MAP = TPR x Q
MAP = DBP + [0.333(SBP-DBP)]
What does Mean Arterial Pressure (MAP) indicate about blood flow?
Indicator of how effectively blood is flowing through the arteries to deliver O2 and nutrients
Rate Pressure Product (RPP). What even is this?
Accurate estimate of the workload of the heart. Used to gauge cardiovascular stress.
Higher RPP means higher stress on the heart, which MAY (not is) be an indicator of
cardiovascular disease
What is the equation for RPP?
RPP = HR x SBP (similar to Q equation)
Ranges from 6,000 at rest to over 40,000 during exercise
Bradycardia
abnormally slow HR
If an endurance athlete, this is normal
If an obese person, this is not normal
AV node
, pace rate is set between 40-60 bpm
SA node
primary pacemaker of the heart. Rhythm is typically between 60-100 bpm
What is Total Peripheral Resistance (TPR)?
resistance blood must overcome in blood vessels
What is TPR influenced by?
vessel diameter, vasoconstriction, and vasodilation
What is the equation for TPR?
TPR = MAP/Q
What is HR Variability (HRV)?
Standard deviation between R-waves. Measure of how well the heart and autonomic nervous
system adapt to stressors
What factors affect HRV?
HRV decreases with age
Trained people have greater HRV
Acute exercise will lower HRV
What is preload?
stretching of heart's ventricles so heart can fill with blood.
High preload results in increased SV
What does MAP stand for in the context of blood pressure?
Mean Arterial Pressure
How is Mean Arterial Pressure (MAP) calculated?
MAP = TPR x Q
MAP = DBP + [0.333(SBP-DBP)]
What does Mean Arterial Pressure (MAP) indicate about blood flow?
Indicator of how effectively blood is flowing through the arteries to deliver O2 and nutrients
Rate Pressure Product (RPP). What even is this?
Accurate estimate of the workload of the heart. Used to gauge cardiovascular stress.
Higher RPP means higher stress on the heart, which MAY (not is) be an indicator of
cardiovascular disease
What is the equation for RPP?
RPP = HR x SBP (similar to Q equation)
Ranges from 6,000 at rest to over 40,000 during exercise
Bradycardia
abnormally slow HR
If an endurance athlete, this is normal
If an obese person, this is not normal
AV node
, pace rate is set between 40-60 bpm
SA node
primary pacemaker of the heart. Rhythm is typically between 60-100 bpm
What is Total Peripheral Resistance (TPR)?
resistance blood must overcome in blood vessels
What is TPR influenced by?
vessel diameter, vasoconstriction, and vasodilation
What is the equation for TPR?
TPR = MAP/Q
What is HR Variability (HRV)?
Standard deviation between R-waves. Measure of how well the heart and autonomic nervous
system adapt to stressors
What factors affect HRV?
HRV decreases with age
Trained people have greater HRV
Acute exercise will lower HRV
What is preload?
stretching of heart's ventricles so heart can fill with blood.
High preload results in increased SV
