# Critical Power v. FTP

**URL:** <https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923>\
**Category:** Uncategorized\
**Created:** [October 19, 2022, 11:15am UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923 "2022-10-19T11:15:56Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![CPT\_A](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/cpt_a/32/15342_2.png) [@CPT\_A](https://wahoox.forum.wahoofitness.com/u/CPT_A)\
**Post date:** [October 19, 2022, 11:15am UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/1 "2022-10-19T11:15:56Z")

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From the latest _CW_:

> **[Ask a cycling coach: 'Are some methods of calculating FTP more reliable than...](https://www.cyclingweekly.com/fitness/training/ask-a-cycling-coach-are-some-methods-of-calculating-ftp-more-reliable-than-others)**
>
> From training to time trials, an accurate estimate is vital for getting the best out of yourself

🤔

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**Author:** ![Glen.Coutts](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/glen.coutts/32/25318_2.png) [@Glen.Coutts](https://wahoox.forum.wahoofitness.com/u/Glen.Coutts)\
**Post date:** [October 19, 2022, 11:54am UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/2 "2022-10-19T11:54:15Z")

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Interesting…but I think using CP may still be a few steps short of 4DP. I imagine that, like FTP, people with similar CP may have widely varying power at NM, AC and MAP. So training to a set percentage of CP would be like training at a set percentage of FTP and come with the same shortfalls.

That is, unless the multiple tests used to determine CP are similar to those in 4DP and any individual training plans created take those different aspects into consideration.

For my money (and outstanding value) imma stick with SUF/SYSTM.

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**Author:** ![CPT\_A](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/cpt_a/32/15342_2.png) [@CPT\_A](https://wahoox.forum.wahoofitness.com/u/CPT_A)\
**Post date:** [October 19, 2022, 1:01pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/3 "2022-10-19T13:01:06Z")

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@Glen.Coutts was just thinking another metric to play with. Wondering if there are any specific workouts in the library that would replicate the CP testing the doc references in the article…

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**Author:** ![Glen.Coutts](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/glen.coutts/32/25318_2.png) [@Glen.Coutts](https://wahoox.forum.wahoofitness.com/u/Glen.Coutts)\
**Post date:** [October 19, 2022, 1:04pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/4 "2022-10-19T13:04:02Z")

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I think you should do them all and report back on your findings 🙂

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**Author:** ![CPT\_A](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/cpt_a/32/15342_2.png) [@CPT\_A](https://wahoox.forum.wahoofitness.com/u/CPT_A)\
**Post date:** [October 19, 2022, 1:27pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/5 "2022-10-19T13:27:24Z")

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> [@Glen.Coutts](#):
>
> I think you should do them all and report back on your findings 🙂

…in order. 😂

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**Author:** ![Glen.Coutts](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/glen.coutts/32/25318_2.png) [@Glen.Coutts](https://wahoox.forum.wahoofitness.com/u/Glen.Coutts)\
**Post date:** [October 19, 2022, 1:27pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/6 "2022-10-19T13:27:57Z")

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Then back in reverse order.

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**Author:** ![CPT\_A](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/cpt_a/32/15342_2.png) [@CPT\_A](https://wahoox.forum.wahoofitness.com/u/CPT_A)\
**Post date:** [October 19, 2022, 1:38pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/7 "2022-10-19T13:38:17Z")

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![image](https://us1.discourse-cdn.com/flex020/uploads/thesufferfest/original/2X/8/8ea363a88cc98e3019531982faa2c5a1bddb266f.jpeg)

Anyone recognize this workout? 😏

14VG, DAYT, Shovel, Omnium, Tool Shed all come to mind. Kitchen Sink maybe, if you’re demented?

> **[How to Test for CP (Critical Power) As a Cyclists](https://www.vingo.fit/cycling-for-all/how-to-test-for-cp-critical-power-and-what-to-do-with-results/)**
>
> Understanding CP and how to apply it is a useful tool for performance and gains.

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**Author:** ![CPT\_A](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/cpt_a/32/15342_2.png) [@CPT\_A](https://wahoox.forum.wahoofitness.com/u/CPT_A)\
**Post date:** [October 19, 2022, 1:51pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/8 "2022-10-19T13:51:13Z")

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> [@Glen.Coutts](#):
>
> Interesting…but I think using CP may still be a few steps short of 4DP.

I’m just an impresario at heart - I like shiny things. So the CP metric interests me. I’m fully invested in 4DP nonetheless. Even if I hate it.

😏

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**Author:** ![Glen.Coutts](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/glen.coutts/32/25318_2.png) [@Glen.Coutts](https://wahoox.forum.wahoofitness.com/u/Glen.Coutts)\
**Post date:** [October 19, 2022, 2:10pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/9 "2022-10-19T14:10:38Z")

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I’m hoping a SUF scientist weighs in.

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**Author:** ![TrapMeSuf](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/trapmesuf/32/10401_2.png) [@TrapMeSuf](https://wahoox.forum.wahoofitness.com/u/TrapMeSuf)\
**Post date:** [October 19, 2022, 2:12pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/10 "2022-10-19T14:12:44Z")

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Ok, so I’ve just looked up my best 3min and best 12min power according to intervals.icu. Calculated the CP, and then googled the power zones to train for:  
 ![image](https://us1.discourse-cdn.com/flex020/uploads/thesufferfest/original/2X/f/f611b3d418114299b51c4f92dfdb25fa24e2df6e.png)  
source: [jameshewitt.net](http://jameshewitt.net)

Now the upper limit of the threshold is close enough to my 4DP FTP, but the VO2 max should be about 140% of CP to match my 4DP MAP. I won’t be suffering with these numbers…

It sort of proves that my rider type weakness is the sustained effort, but it also shows that 4DP numbers are much more effective for my rider type.

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**Author:** ![Glen.Coutts](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/glen.coutts/32/25318_2.png) [@Glen.Coutts](https://wahoox.forum.wahoofitness.com/u/Glen.Coutts)\
**Post date:** [October 19, 2022, 2:26pm UTC](https://wahoox.forum.wahoofitness.com/t/critical-power-v-ftp/19923/11 "2022-10-19T14:26:15Z")

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👏👏👏
