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ALL / Cardiology
Exercise: physiological changes
Exercise: physiological changes
Blood pressure- systolic increases, diastolic decreases
- leads to increased pulse pressure
- in healthy young people the increase in MABP is only slight
Cardiac output
- increase in cardiac output may be 3-5 fold
- results from venous constriction, vasodilation and increased myocardial contractibility, as well as from the maintenance of right atrial pressure by an increase in venous return
- heart rate up to 3-fold increase
- stroke volume up to 1.5-fold increase
Systemic vascular resistance falls in exercise due to vasodilatation in active skeletal muscles.
+PassMedicine Notes
Blood pressure
- systolic increases, diastolic decreases
- leads to increased pulse pressure
- in healthy young people the increase in MABP is only slight
- increase in cardiac output may be 3-5 fold
- results from venous constriction, vasodilation and increased myocardial contractibility, as well as from the maintenance of right atrial pressure by an increase in venous return
- heart rate up to 3-fold increase
- stroke volume up to 1.5-fold increase
Systemic vascular resistance falls in exercise due to vasodilatation in active skeletal muscles.