Hopefully posting this correctly. Have started playing about with custom charts and was trying to create a 3 Zone chart for TIZ, for Power and HR.
Z1+Z2 Z3 Z4+
Within the power zone plot options, there is a choice of Zone 4+, however this option is not present for HR.
For HR it is Z5+.
It doesnāt make any sense to split up HR zones above LTHR in more then three zones. Even three zones above LTHR is almost impossible to distinguish because of the latency of HR.
Most people have something like 10-20 bpm room above LTHR. Imagine splitting that up in 4 zonesā¦
Under the Z4+ plot option for power, it groups all time in zone from Z4 onwards. Eg in a 5 zone model Z4 and Z5 grouped together.
Im after the ability to do the same for HR.
Iām not asking for it to be split up further into another 4 zones, as that would indeed be mad.
When monitoring intensity distribution LIT, MIT and HIT 3 zone model, Z1+Z2 are grouped in the plot, Z3 on its own and Z4 and Z5 are grouped together in the plot, as they are both classed as high intensity.
Itās not my intent of starting a fight over who or what source is wrong or wright. Iām just telling you how the grouping is implemented in Intervals.
This
is based on the grouping I just told you. And it canāt be altered.
There are a number of problems arising from the fact that the zones in Intervals are based on the 5 zone HR system and the 7 zone Power system. David knows that and will change it at some point. But for now it is what it is and itās difficult to change because it is so deeply ingrained.
At this moment thereās no āproperā way of using the Seiler system in intervals because it uses top of Z2 power as AeT power and top of Z4 power as the borders. Depending on the athlete, we know that the correct point for AeT can be lower or higher then top of Z2 power. And for AT, we know that power at top of Z4 is too high because that is 105% FTP.
So we have to work with what we have and the mentioned grouping is the best approximation at this time.
The best thing would be to have fully configurable zones and that would allow anyone to train by the system he believes in. Letās cross fingers for that to come in the near future.
Another thing is that most beginning users have no clue at all regarding the zone system they should/could use and how they should configure them in a way that the results match more or less in between Power/HR/Pace.
You can kind of manipulate the zones to suit your preferred system, but thereās always something that doesnāt match. Hence the different grouping that is now already implemented. My way of getting as close as possible is to use AeT power as top of Z2 power and top of Z2 HR. For AT I use top of Z5 power and top of Z5 HR. This all in an āadaptedā 7 zone system for both Power and HR. For cycling I have this:
This gives me Loads for all three parameters that are acceptably close and I do modify HR and Pace zones with Power as a āmasterā when I see Loads from HR and/or Pace that start to diverge too much.
Itās not ideal because it skews the Totals in my first screenshot and the Seiler zones in the calendar view. But Iām aware of that and handle accordingly.
Not looking to pick a fight.
I appreciate its setup like this in intervals as it stands, which was the purpose of my request.
Was only after it being added into the custom chart section of the Time in Zone graph, because its their for power and I was after it for HR also.
I am playing around with block periodisation broken down into Low Intensity, Mid and High, and thus was looking to map my time in zone for HR and PW into these categories.
As above, the option is there for power, but for HR, I had to add an additional zone plot, but, I suppose I could change the colour for Z4 and Z5 to red from a visual point of view.
Apologies if this is in the wrong place, but having just read your excellent guide post and not wanting to start a whole new thread this seemed like the best post to reply to.
Is there a way to manually override the time in zone for a particular activity? Like just type it in? Or alternatively set up master zones that follow the same priority (e.g. Power/HR/pace) unless manually edited?
I tend to think of my training from the session goal + time in zone perspective. So if Iām doing 5x8x40/20 all the work might be in Z5 or Z2 but Iām counting it as Z4 work so Iād like to record it as 40mins worth of Z4. Similarly if Iām trying to get in 30mins of quality Z5 a week, I donāt want the 10-20ā surges in an otherwise Z2 ride or adding up
Similar situation for hill reps on a treadmill (unless youāre lucky enough to have a very fancy sensor)