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  1. #1
    mustang331's Avatar
    mustang331 is offline Member
    Join Date
    Jan 2003
    Posts
    796

    It's 65% to 75% of MHR right?? :)

    Been doing a **** load of cardio latley and forgot what the HR should be.. I am 25 years old so 127 HR is where I need to be? Correct?

  2. #2
    solid-d's Avatar
    solid-d is offline Member
    Join Date
    Mar 2002
    Posts
    993
    bump

  3. #3
    needmorestrength's Avatar
    needmorestrength is offline Anabolic Member
    Join Date
    May 2004
    Location
    Canada eh
    Posts
    7,073
    220-age *65%-75% is what I use

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