HRM Help

[Monsieur Remings]

That's fair enough - I'm not saying that 80-90% are the same thing by any means.

 

[VamP]

In layman's terms, I would define anaerobic as 'unsustainable' - and the threshold for that unsustainability usually occurs beyond about 89-92%, depending on the individual. For instance, I can hold 90-92% for 15-20mins - but I start to fade very quickly if I go beyond 92%. Simply saying anaerobic is 80-90% is too broad to be useful. Charts are not really needed either - once you know where your threshold is, then plan your intervals around it.

That's about the size of it.

HR is too imprecise to do much more than have just a handful of bands such as this:

Below 70% - not really doing much
70 - 87% aerobic endurance
87 - 92 % aerobic threshold work
Above 92 % Vo2 max intervals (anything below about 3 minutes in duration, HR becomes too laggy to be of much use)

 

[Dusty Bin]

Agree with the above. Just for interest, my own levels/zones are as follows:

<75% - long steady rides, 3-4hr pace
75-85% - 2hr pace
85-92% - 1hr pace
>92% - short duration intervals, ie 1-3mins

Everyone is different - but the objectives are probably similar...

 

[Monsieur Remings]

I came across this which I think is a better indication of zones than what I first used.

Zone 1 60 – 65% Easy ride recovery
Zone 2 65 – 75% Fat Burning
Zone 3 75 - 82% Lower Aerobic
Zone 4 82 - 89% Upper Aerobic
Zone 5 89 - 94% Anaerobic (thr)
Zone 6 94 - 100% Maximal