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  1. #1
    Nuttin' Special Watch Me!'s Avatar
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    Math Vo2Max Question, ACE test

    I'm studying for the ACE PT cert, and I am a little lost on one problem - hoping someone around here can help. The book shows the following exact text:
    VO2=(60bpmx70mL/beat) x (6mL O2/100mL blood)
    = 252mL O2/min

    How in the hell did they arrive at 252?

    And then it goes on to say:

    "Divided by 70kg (person's weight), his resting VO2 is about 3.6mL/kg/min.
    During maximal exercise this man has a heart rate of 180bpm, a stroke volume of 115mL/beat, and an oxygen extraction of 15mL O2/100mL blood."

    Did the info in that 2nd sentence somehow come from the info above, or are these "known factors"? I am soooo lost.

    Any help?
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    Registered User joshwilson1's Avatar
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    I just did the equation that you provided and it cam up with the answer you said they gave. I got an answer of 4200 when I multiplied 60 and 70. I took that answer and divided it buy the quotent of 6/100. That gave me an answere of 252.

    As for the second part of your question, I am not sure where they came up with those answers. Is there a place in your book that talks about VO2max and its correlation with stroke volume?
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