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Setting ATL & CTL Constants

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Setting ATL & CTL Constants

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14-11.-2007, 08:06 AM

#16

LT Intolerant

Registered User

Join Date: Mar 2006

Posts: 86

Re: Setting ATL & CTL Constants

Quote:

Originally Posted by acoggan

I was actually thinking of all the durations that are listed in the Ranges box, i.e., 5 s, 10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 60 min, and also the relevant normalized powers (i.e., 5 min, 10 min, 20 min, 30 min, 60 min). That's what I've previously used to get a feel for the optimal TSB, at least on average (i.e., across workouts/races and across individuals) - see http://www.cyclingpeakssoftware.com/pmc_summit.pdf.

(BTW, for simplicity's sake I use the average TSB for those durations at which someone hits the exact same maximal power on more than one occasion.)

Ahh, got it. I'll go back and take a look and see if can pick up on any trends in the data. Thanks.

gene r

14-11.-2007, 08:14 AM

#17

LT Intolerant

Registered User

Join Date: Mar 2006

Posts: 86

Re: Setting ATL & CTL Constants

Quote:

Originally Posted by peterpen

I'd also look at two things:
-when did these bests occur? specific testing? racing?
-what is your typical TSB range (and min to max) ?

While over the past two years I've set two bests with high TSB (>+10) (1m and 5m, both during a season break after a taper for a race period) the majority of my bests are all over the place in terms of TSB. I generally track max avgP for3m, 15m, and NP for 60m - I've set bests (top 10 for 2 seasons) on the same date twice, with TSB -6.7 and -13.3. Like 90% of my bests, these were during races.

I thougth about the fact that I really don't do any formal testing once race season begins, and maybe that's my issue. That is I'm not testing formally when my TSB is trending positively because I'm "saving" my legs for race day.

Some on my bests have come in races, most in hard group rides, and my 60 min on a hillclimb with a small group.

In another post as you can see I have gone back and looked at my TSB range for 5 sec, 1, 5 and 60 min power and there is certainly a more expanded TSB range for PBs and readings within 5% of my PB for a certain duration.

Thanks for the thoughts and ideas Peter.

gene r

14-11.-2007, 09:23 AM

#18

Alex Simmons

Registered User

Join Date: Mar 2006

Location: Sydney, Australia

Posts: 1,561

Re: Setting ATL & CTL Constants

Quote:

Originally Posted by LT Intolerant

The data I have goes back to late June when I changed PMs to a more "precise" PM.

When I look at my PBs and other days that were within 5% or less of my PB for select times the TSB range is slightly more expanded. Here is what I came up with...

5 sec = -1, 7, 15, -15, -1, 9
1 min = 1, 21, -1, -15, 12, 11, 5
5 min = 0, -9, 1, 18, 20
60 min = -9, 7, -18, 3, 5, 5, 18

I still need to go back and read through my old notes to see where I felt like my legs were good or lousy and see what my corresponding TSB was at that time.

gene r

Well that's a neutral to positive bias in TSB for near PB performances.

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