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Human Performance 21

Human Performance 21 - HumanPerformance21 15:46...

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Human Performance 21 15:46 Heart Rate:  (HR) the number of times the heart contracts per minute  “# of  contractions/min” Stroke Volume:  how much blood is ejected by each ventricle when the heart  contracts. (SV) volume of blood ejected by each ventricle/contraction Cardiac Output:  the product of the HR and SV: it is the volume of blood ejected  by each ventricle per minute: (Q) = volume of blood ejected by each vent/min Cardiac Output Formula : Q=HR(b/min) X SV(mL/b)  Rest (Sedentary) 5L/min = 70(b/min) X 72(mL/b) Rest (Athletic) 5L/min = 50(b/min)X100(mL/b): athletes have slower resting heart  rate: Training reduction of training heart rate: BRADY CARDIA. Bradycardia:  Slow heart rate Tachycardia : Rapid heart rate  Max Exercise:  Sed:~17L/min (3 circuits per minute), ex:20 year old: 220- 200=200bpm, for stroke volume is 200 X 85mL/b. Ath Endurance is ~above 30L/ m (every 10 sec and circuit) if they are 200x100mL/B: Cardiovascular system is a  limiting factors due to blood flow capabilities. When they do cardio it benefits

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