Daniels Equivalent Power
Sean Rhea
I've been using Daniels Points to guide my training for a few months
now, and I mostly like it as a metric, for the same reasons I've
outlined before. (I also have a few little gripes with it, but I'll
talk about those in another email.)
That said, I've been missing not having something like xPower/NP, but
derived from Daniels Points. Attached is a patch that implements such
a metric in the most obvious way: by inverting the DP calculation. In
other words, your "Daniels Equivalent Power" is the power that you
would have had to maintain at steady state for the same time to score
the Daniels Points that you did. In equation form,
daniels_eq_power = cp * (daniels_points / (K * secs)) ^ 0.25
where cp is your CP/FTP and K is the scaling constant such that 100
Daniels Points is equivalent to 1 hour at CP/FTP.
Let me know what you think,
Sean
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"I refuse to accept the idea that the ‘isness’ of man’s present nature
makes him morally incapable of reaching up for the eternal ‘oughtness’
that forever confronts him." --MLK
Justin F. Knotzke
All,
I've been using Daniels Points to guide my training for a few months
now, and I mostly like it as a metric, for the same reasons I've
outlined before. (I also have a few little gripes with it, but I'll
talk about those in another email.)
I've been using Old No. 7 for a while now and I must say, I rather like how it operates. I can't explain mathematically why, or even if physiologically it is somehow more representative (and to be honest, I don't much care) but it seems to give much more weight to actual work as opposed to non work.
Which is to say, that I don't get too many points for putzing around in a recovery ride. I do however, get gobs for doing actual intervals.
With BikeScore, I was given all kinds of points for just going out for an easy spin for 2hrs with the boys gossiping. To the point where I could maintain a certain long term score by doing just that.. OR get the same score by doing two sets of hard intervals per week.
I can't get that with Old No. 7. At least not in the amount of testing I have done with it so far.
Looking forward to trying this patch.
J
robert carlsen
I know that the Weekly charts are hard coded to BikeScore currently.
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Eric Murray
> With this patch, should we think about moving the DP / BS option from the PM to the Options dialog and respect the choice application-wide?
That would also enable adding other metrics.
And it would not (I hope) take up screen realestate on metrics
that an individual is not interested in using.
It'd be cool to be able to switch from one metric to another and
see how it affects things.
Eric
Sean Rhea
My plan was to add a metrics selector for the Ride Summary the same
way we currently have one for the Interval Summary. Then the user can
select whatever combination of metrics they want.
We can do similar stuff for the PM chart and Weekly Summary.
GC 1.4 is gonna be great. :)
Sean
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