Short term effects of exercise (cardiovascular)

Short term effects of exercise (cardiovascular)

1. Cardiovascular

   • Cardiac Output (Q) = SV x HR
     • SV - Every time the heart beats,, blood is pumped out
       • Ventricles contract with a higher force
         • S.A Node
         • 40-50% of blood is pumped out
     • Heart Rate increases
       • Adrenaline is released
     • Trained athlete = Rest: SV (105ml/beat), HR = 60 BPM...
     • Trained athlete = Maximum: SV (190mll/beat), HR = 192 BPM
   • Increase in blood pressure
     • Systolic value and diastolic value (120/80)
       • Systolic = pressure in the artery, when your heart is beating.
       • Diastolic value = pressure in the artery between beats
     • Exercise tends to affect the systolic value more than the disatolic
   • Blood redirects throught the vascular shunt
     • 20% of your blood to muscles at rest
       • Vasoconstriction
       • Vasodilations
     • 84% of your blood to the muscles when exercising

2. Blood volume

   • Goes down (10%)