If you having real trouble with HR zones then my advice (I am qualified as a personel trainer, just as a hobby
) is used the Percieved rate of exertion scale, RPE1 =sedate stroll pace up to RPE 10+ maxed out pace couldn't go any paster and want to die pace.
zone 4= rpe 9
zone 3= rpe 8
zone 2=rpe 6/7
zone 1= rpe 5/6
I hope this is of help.
I've Fink plan spread sheet and you do a 5 mile run as a time trial and record you average HR for last 20 mins and enter that in the box and it gives your zone for running and cycling.
Min Max Run Zones
Zone 1 Less than 85% of LTHR < 134.4
Zone 2 85% to 89% of LTHR 136 142.4
Zone 3 90% to 94% of LTHR 144 150.4
Zone 4 95% to 99% of LTHR 152 158.4
Zone 5a 100% to 102% of LTHR 160 163.2
Zone 5b 103% to 106% of LTHR 164.8 169.6
Zone 5c More than 106% of LTHR 171.2 >
Bike Zones
Zone 1 Less than 81% of LTHR < 128
Zone 2 81% to 89% of LTHR 129.6 142.4
Zone 3 90% to 93% of LTHR 144 148.8
Zone 4 94% to 99% of LTHR 150.4 158.4
Zone 5a 100% to 102% of LTHR 160 163.2
Zone 5b 103% to 106% of LTHR 164.8 169.6
Zone 5c More than 106% of LTHR 171.2 >
I've just done a ride at what I would say was RPE 8 (10 mile TT= RPE 10) and averaged 120 bpm, did about 23 miles and ran out of steam, then took it easy for the last 10 mile (RPE 5.5), HR went down to 100-105 bpm.
Just realised I've been looking at the run zones, not the bike zones, but I'm still 10 bpm off getting into zone 2 at RPE 8.
I'm thinking of working with a new made up system;
Target Outlaw Race Pace (TORP);
TORP 1 = 16.5 mph (rpe 6)
TORP 2 = 19 mph (rpe 8)
TORP 3 = 21 mph rpe (9+)
(not sure of the numbers there, they have been randomly plucked from somewhere, would have to set some benchmarks to establish proper parameters)
Edited: 13/10/2011 at 15:38