So I did a VO2max test to determine my HR Zones for winter training. I train using HR as I cannot yet afford to get a powermeter. I know training with power is better and more accurate, but not within my financial possibilities right now. :-(
Anyway, as a result of the testing, my new HR Zones were determined to be the following:
Z1 = 137-150 "Recovery" (Active)
Z2 = 151-162 "Endurance" (Base)
Z3 = 163-172 "Tempo" (Race Pace)
Z4 = 173-180 "Minute Intervals" (Speed Work)
Z5 = 180-186 "2nd Interval" (Peak Interval)
Now, here are the zones I HAD been working with that I had come up with based on less-accurate field tests I have been doing in-season and so forth. I was using the chart in Friel's "Bible" to come up with these...
Z1 = 109-135 "Recovery"
Z2 = 136-149 "Aerobic"
Z3 = 150-155 "Tempo"
Z4 = 156-166 "Sub-Thresh."
Z5a = 167-170 "Super-Thresh."
Z5b = 171-176 "Aerobic Cap."
Z5c = 177-182 "Anaerobic Cap."
So what gives? Can someone explain to me why/how my VO2max tested Zones are so different and have seemingly changed by 1 whole Zone from previous measurements? I was doing Base Miles last season shooting for about 142bpm average, and now I'm going to be doing those same Base Miles shooting to average 10bpm higher (i.e. 151-162) ?!?
Also, my AT (Aerobic Threshold) was measured at 162 (@ 250watts), and my max HR was 184 on the test, but I've seen 186 on my HRM recently this season.
Any light that could be shed on my quandry would be appreciated. Thanx.
Anyway, as a result of the testing, my new HR Zones were determined to be the following:
Z1 = 137-150 "Recovery" (Active)
Z2 = 151-162 "Endurance" (Base)
Z3 = 163-172 "Tempo" (Race Pace)
Z4 = 173-180 "Minute Intervals" (Speed Work)
Z5 = 180-186 "2nd Interval" (Peak Interval)
Now, here are the zones I HAD been working with that I had come up with based on less-accurate field tests I have been doing in-season and so forth. I was using the chart in Friel's "Bible" to come up with these...
Z1 = 109-135 "Recovery"
Z2 = 136-149 "Aerobic"
Z3 = 150-155 "Tempo"
Z4 = 156-166 "Sub-Thresh."
Z5a = 167-170 "Super-Thresh."
Z5b = 171-176 "Aerobic Cap."
Z5c = 177-182 "Anaerobic Cap."
So what gives? Can someone explain to me why/how my VO2max tested Zones are so different and have seemingly changed by 1 whole Zone from previous measurements? I was doing Base Miles last season shooting for about 142bpm average, and now I'm going to be doing those same Base Miles shooting to average 10bpm higher (i.e. 151-162) ?!?
Also, my AT (Aerobic Threshold) was measured at 162 (@ 250watts), and my max HR was 184 on the test, but I've seen 186 on my HRM recently this season.
Any light that could be shed on my quandry would be appreciated. Thanx.