Cardiac Output Explained: Heart Rate X Stroke Volume= Cardiac Output | Exercise Physiology

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Cardiac Output is the volume of blood flowing through the heart per minute.

This blood flow changes in response to exercise and adapts over time based on training status.

Resting Cardiac Output is the same regardless of training status. For example:
Sedentary Individual:
Resting Heart Rate 70 BPM X Stroke Volume 70 ml = 4.9 L/min

Endurance Trained Individual:
Resting Heart Rate 50 BPM X Stroke Volume 100 ml - 5.0 L/min

During Maximal Exercise:
Sedentary Individual:
Max HR 170 BPM X 90 ml = 15.3 L/min

Endurance Trained Athlete:
Max HR 170 BPM X 150 ml = 25.5 L/min

The Endurance Athlete can deliver 10L/min more blood to provide more oxygen to the muscles. This leads to improved performance.

00:30 Cardiac Output Equation
01:10 Sedentary Individual Cardiac Output at Rest
01:45 Endurance Athlete Cardiac Output at Rest
02:30 Max Stroke Volume Examples
04:30 Female Cardiac Output
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Thanks man! This was a question in my mind from the last few weeks! But your video is just perfect! Very precise explanation and clear. Cheers

prathameshpatil
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I watch these once they drop, waste no time 💪 keep putting out great content Matt ! ✊

Freakingrican
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Kindly give explanation to what happens to cardiac output in sepsis.

FahadAli-jikr
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Thanks for that !
Currently studying for my CSCS

jacksonelitefitnezzjoshua
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detailed yet "simplicity at its best" explanation you can get. Thanks Matt!

lizasem
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Hi . What happens to the cardiac output when the athlete is detrained?

yashshanbhag
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Thank you for you videos brother! I’m studying ACSM rn and your explanations are very simple and clear!

Chafou
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Excellent, explanation dear .Iam an anaesthesiologist in Pakistan .we don’t have machines or monitors to calculate stroke volume .But we can have idea now of stoke volume .Thankyou .keep it up for the great lecture

FahadAli-jikr
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explained that so perfectly, hell yay! definitely subscribe. Great info

tayewest
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Very curious your opinion what would be best for overall cardiac health and staying in good shape for older 40-60 years old population? 3-4 slower pace cardio or maybe 1 slower session and 1 more hit style? 🙏

NAKMUAYACADEMY