Max Hr Or Hrr (heart Rate Reserve)

[old] GeorgeD · Post by **[old] GeorgeD** » November 9th, 2004, 3:06 pm

Finally got my HRM and did an hour this morning and the ave HR was 133. My question is this: As a % of my Theoretical HR (175) this is 76% and therefore in the middle of what the C2 training manual refers to as UT1 As a % of my HRR (heart rate reserve, 175-50=125) this is 66% ((133-50=83)/125)) I would appreciate some opinion on this as that is quite a difference. NOTE: I repsectfully dont want to get into a discussion on the merits or non-merits of HR training in general - Tks George

[old] drkcgoh · Post by **[old] drkcgoh** » November 9th, 2004, 5:04 pm

There are charts in the ACSM and AACVPR that confirm this difference. There are also more accurate formulae than the 220 -Age to predict maximum HR. The 205 -1/2 Age by Kaminsky is certainly more accurate (it gives me 174) against the 157 from the 1st formula). There is another formula found in the latest edition of the ACSM guidelines for Exercise testing. In any case, HRR is more accurate than a plain percentage of the predicted max HR, as it takes into account your own low resting HR. Also bear in mind that calculated formulae have a variation of 15 beats either way, So it is better to test out your max HR from a step test as found in the Training guide. KC63/HR171at 2K

[old] albailey · Post by **[old] albailey** » November 9th, 2004, 10:26 pm

</div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td class='genmed'>QUOTE (GeorgeD @ Nov 9 2004, 02:06 PM)</td></tr><tr><td class='quote'>Finally got my HRM and did an hour this morning and the ave HR was 133. My question is this: As a % of my Theoretical HR (175) this is 76% and therefore in the middle of what the C2 training manual refers to as UT1 As a % of my HRR (heart rate reserve, 175-50=125) this is 66% ((133-50=83)/125)) I would appreciate some opinion on this as that is quite a difference. NOTE: I repsectfully dont want to get into a discussion on the merits or non-merits of HR training in general - Tks George </td></tr></table> heart rate reserve is new to me, so i did the calculations for myself, and noticed the same disparity, which is more pronounced at 50 and 60%, gradually lessening the higher the given percentage. i had previously noted that 60% of my regular HRmax, 108, was not going to get me anywhere. while 60% of my HRreserve, 129, feels a bit more like it could be burning some calories. i don't know what your goals are, but i'm currently focused on burning the calories strapped to my middle, and have found the heart rate monitor to be a very easy way to quantify my workouts in order to help me achieve my goal (which is fitting into an old suit for a friend's wedding - ack! put that candy bar down! - al.

[old] GeorgeD · Post by **[old] GeorgeD** » November 9th, 2004, 11:04 pm

Having Googled the issue and visited 97.3 sites HRR is where it is at

[old] John Rupp · Post by **[old] John Rupp** » November 9th, 2004, 11:11 pm

The most accurate method is to determine YOUR maximum and minimum heart rates. Then use the percent of your heart rate reserve.