Calculated Fields

by camel

Downloads: 23,627 (9) • Reviews: 4

Version:

1.2.9.4

Updated:

Apr 11, 2011

power / HR

power / HR

Postby perrush » Sat Jan 07, 2012 5:27 am

I wonder if the following comparison is possible with this plug-in.

I want to compare the 'max HR over a given period' with the 'max power over a given period' within a single training. Maybe the following image makes it more clear.

Image

- This image shows the HR en poer over 20 min.
- In dark blue = max HR 20 min
- In light blue = max power 20 min
- both have a trendline
- you see clearly that during winter my 20 min power output has dropped while my HR was almost the same.

What I would like to have is a graph of '20 min peak power / 20 min peak power HR'. I think it will show the same trend but gives some more possibilities (easier to see trend change, more periods on one graph ...)
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Re: power / HR

Postby camel » Sun Jan 08, 2012 5:03 am

So you want to calculate max power for 20 minute interval. Let's say for example that it would be an interval of 5minute to 25 minute of activity.

And than you want to know HR for given interval?
Or you want to calculate max HR for 20 minutes independly?

And than you want to divide them, but that would be easy part.

Peter
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Re: power / HR

Postby perrush » Sun Jan 08, 2012 5:19 am

Peter,

the calculated 20 min HR doesn't have to be the HR of the power interval. (if logic follows, max HR 20 min will be corresponding with max HR 20 min)

i've read a little true an other thread. A possible problem could be that there will be many 'zero power' points. Not sure if your plugin can calculate a peak power 20 min spanning over some 0 power points.
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Re: power / HR

Postby perrush » Sun Jan 08, 2012 6:04 am

@ camel :

it seems it is working, just need some time to fine-tune things. BUT can you tell me what happens with the zero fields ? are they 'looked over' of will a string end on a zero value ?
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Re: power / HR

Postby camel » Sun Jan 08, 2012 6:10 am

If I remember it correctly, and I have checked it a little in code.

It looks like zero values will be normally taken into calculation. We are calculating average power in some interval so zero is valid value too.
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