General Discussion Triathlon Talk » Increasing power threshold over the winter Rss Feed  
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2008-04-16 4:22 PM
in reply to: #1342772

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Subject: RE: Increasing power threshold over the winter
amiine - 2008-04-16 4:06 PM
Shermbelle - 2008-04-12 12:49 AM

Sitting in a hotel room at 1:30AM on vacation, re-reading this whole thread, two questions came to mind.

1) once your FTP is established and built upon heading into race specific training season, what % of FTP would you use to do long bike rides and your ironman bike leg at?

2) watts per body weight calculation: how is this figured out?

sorry Mike, I was away from BT for most of the weekend...

1) this will vary depending on how strong or not you are on the bike. in your specific case we are going to spend more time 1st at increasing your FTP with 2x20 min session at 96-105% of FT and doing VO2 max sets. THEN will focus on developing the endurance necessary to back up that power so you can race at a higher Intensity factor aka IF (IF = % of the FT) for IM. But a way will test this will be by making you do long rides at different IFs i.e. a 80 mile ride at 0.7 IF, 80 mile at 0.75 IF and then make you run. We will collect data from all your rides based on normilized power, variable index, rpm avg, IF, your perceived exertion, training stress score, run pace and we'll use ALL to determine the best pacing strategy for IMAZ. I can explain you in more detail with actual examples of power files once you ride oustide and send me some.

2) convert weigh to kilos and divide by FTP. Then you can go to this link: http://www.cyclingpeakssoftware.com/images/powerprofile_v4.gif and compare yourself with others. Keep in mind those values are based on cyclists but as a very general reference for age groupers: BOP less than <2.8 w/kg, MOP around 2.9-3.4 w/kg, FOP around 3.5-3.9, those placing 4.0>

Surprised Undecided So in my rough calculations..... I SUCK!!!

Yay I know I have a lot of work to do and a lot of weight to lose which will translate to better numbers., but something doesn't seem to add up for me.

Weight 208

FTP 256

Rough math 2.68 = B.O.P. Undecided

Tried something else here. Last August I did Steelhead Half and guessing I weighed 192 and lets just say FTP (didn't have power back then) 275 to be nice. That puts me at 3.16 which is still M.O.P. I think my bike avg was 21.9 mph which was conservative for me as I had a lot left for a 1:36 run.

I am very curious if my FTP is higher than I think because something doesn't add up.

 



2008-04-16 5:46 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter

Okay rode "outside" today Cool (been a long winter here)

Numbers from the ride

40.11 mi in 2:10:22  18.5mph avg

HR avg 143   Power avg 243 Watts,  Normal Power 253   IF  .994   215 TSS 

This for me was between an easy to steady ride for me. Could have held a conversation all day long. RPE for me would have been 5 on a 1-10 scale.

Numbers are a little misleading because of the 20 mph winds so I was going 26 for a good portion and turning 125 Watts and then pushing 350 watts going 13.5 mph into the wind.

So my questions.... (I am taking this week to research and learn everything I can about power and really try to understand it)

Do these numbers look off? I felt I could have rode all day but my TSS was already to 215. Translate this ride out to 112 miles and I would be around 650 TSS Undecided

Please help, Thanks!

2008-04-16 7:17 PM
in reply to: #1343199

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Subject: RE: Increasing power threshold over the winter
Shermbelle - 2008-04-16 5:46 PM

Okay rode "outside" today Cool (been a long winter here)

Numbers from the ride

40.11 mi in 2:10:22  18.5mph avg

HR avg 143   Power avg 243 Watts,  Normal Power 253   IF  .994   215 TSS 

This for me was between an easy to steady ride for me. Could have held a conversation all day long. RPE for me would have been 5 on a 1-10 scale.

Numbers are a little misleading because of the 20 mph winds so I was going 26 for a good portion and turning 125 Watts and then pushing 350 watts going 13.5 mph into the wind.

So my questions.... (I am taking this week to research and learn everything I can about power and really try to understand it)

Do these numbers look off? I felt I could have rode all day but my TSS was already to 215. Translate this ride out to 112 miles and I would be around 650 TSS Undecided

Please help, Thanks!

WAY OFF!!!

Assuming your PM was calibrated, there's no way those numbers are accurate.  Your FT is MUCH higher.

First off, this was a fairly steady ride with a VI of 1.04 (NP/AP).  So not TOO much surging and coasting (but you'll be better off with something more like 1.02 in AZ).

Second, there's simply no way to ride at an IF of nearly 1 for 2+ hours since, by definition, it's max sustainable power for 1hr.  Assuming this was more like a .75 IF ride, your FTP would be in ballpark of 335-340w.  So something is off (either the PM or your FTP estimate).

2008-04-16 7:38 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter

Thanks Johnny, I followed the  online video of how to "offset" the ergomo right before I headed out to ride. It told me everything was good and calibrated so I am guessing these numbers are correct.

My FTP was determined on my computrainer so obviously inside which is why I asked the question the other day about retesting outside.

 

2008-04-16 7:41 PM
in reply to: #1343353

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Subject: RE: Increasing power threshold over the winter
JohnnyKay - 2008-04-16 8:17 PM
Shermbelle - 2008-04-16 5:46 PM

Okay rode "outside" today Cool (been a long winter here)

Numbers from the ride

40.11 mi in 2:10:22  18.5mph avg

HR avg 143   Power avg 243 Watts,  Normal Power 253   IF  .994   215 TSS 

This for me was between an easy to steady ride for me. Could have held a conversation all day long. RPE for me would have been 5 on a 1-10 scale.

Numbers are a little misleading because of the 20 mph winds so I was going 26 for a good portion and turning 125 Watts and then pushing 350 watts going 13.5 mph into the wind.

So my questions.... (I am taking this week to research and learn everything I can about power and really try to understand it)

Do these numbers look off? I felt I could have rode all day but my TSS was already to 215. Translate this ride out to 112 miles and I would be around 650 TSS Undecided

Please help, Thanks!

WAY OFF!!!

Assuming your PM was calibrated, there's no way those numbers are accurate.  Your FT is MUCH higher.

First off, this was a fairly steady ride with a VI of 1.04 (NP/AP).  So not TOO much surging and coasting (but you'll be better off with something more like 1.02 in AZ).

Second, there's simply no way to ride at an IF of nearly 1 for 2+ hours since, by definition, it's max sustainable power for 1hr.  Assuming this was more like a .75 IF ride, your FTP would be in ballpark of 335-340w.  So something is off (either the PM or your FTP estimate).

Sorry I am an idiot, can you explain further? Undecided

I know on my ride there are stop signs, RR tracks every 2-3 miles and that da#$ phone rang 3 times so there was my fair share of stopping and starting and coasting going into stop signs.

2008-04-16 7:43 PM
in reply to: #1343385

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Subject: RE: Increasing power threshold over the winter
Shermbelle - 2008-04-16 7:38 PM

Thanks Johnny, I followed the  online video of how to "offset" the ergomo right before I headed out to ride. It told me everything was good and calibrated so I am guessing these numbers are correct.

My FTP was determined on my computrainer so obviously inside which is why I asked the question the other day about retesting outside

That's not just an inside/outside difference.  Clearly the computrainer and Ergomo are not calibrated the same.



2008-04-16 7:50 PM
in reply to: #1343395

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Subject: RE: Increasing power threshold over the winter
Shermbelle - 2008-04-16 7:41 PM

Sorry I am an idiot, can you explain further? Undecided

I know on my ride there are stop signs, RR tracks every 2-3 miles and that da#$ phone rang 3 times so there was my fair share of stopping and starting and coasting going into stop signs.

VI = variabilty index

It's a measure of how steady you rode and is calculated by taking normalized power divided by average power.  So if you sat at 250 watts the entire ride you would have an AP of 250, NP of 250 and a VI of 1.0.

A VI of 1.04 represents "some" variablity, but not terribly much--easily explained by some of those things you mentioned.

2008-04-16 8:04 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter
Thanks again, trying to soak up as much as that little pea inside my head can handle. Laughing
2008-04-16 8:17 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter
A few things to consider: you tested your FT on the computrainer hence your FT tends to be lower inside than outside, also Ergomo readings might be different than the CT, a better way to compare is to ride on the CT with the ergomo and compared, last but not least your last FT was a while ago hence it is possible your FT is higher now. But those ergomo numbers are off for sure, it will help if at some point I can get the power files but we'll have you test outside in the near future...
2008-04-18 5:13 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter

Okay, did a new powertest today on the ergomo to get a more accurate test. Was a little conservative the first 10 min but overall a good test.

Avg Watts for 20 min- 322

Weight- 209 Frown

322 x .95= 305.9     so FTP = 306

Body Weight in Kilograms/FTP= 3.29   mid cat 4

Still a ton of work to do but much better

2008-04-18 5:40 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter
did you do it inside or out?


2008-04-18 8:29 PM
in reply to: #1348264

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Subject: RE: Increasing power threshold over the winter

amiine - 2008-04-18 6:40 PM did you do it inside or out?

inside on the CT but used the ergomo for #'s

2008-04-22 12:31 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter
Today Apr 22, 08 20min TT - Avg Watts = 150. Avg cadence = 88. 
FTP = 95% x 150 = 143. Weight = 113. Power to weight = 2.8 (mid cat 4
Avg kph = 30.3. Avg HR = 153 (max 161).  Gear 53x19.

cf Jan 29, 08 20min TT - Avg Watts = 140. Avg cadence = 92.
FTP = 95% x 140 = 133. Weight = 113. Power to weight = 2.6 (borderline cat 4
Avg kph = 29.1. Avg HR = 155 (max 161).  Gear 53x21.

Both tests done on identical flat CT course indoors.  Over 3mos, ~7% power improvement, which translates to only 4% faster. A little disappointing, and certainly way below the 12% improvement Jorge's athlete experienced. However, I did manage to push a bigger gear than the TT 3mos ago.
2008-04-22 12:37 PM
in reply to: #1354682

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Subject: RE: Increasing power threshold over the winter

patricia7 - 2008-04-22 12:31 PM Today Apr 22, 08 20min TT - Avg Watts = 150. Avg cadence = 88. 
FTP = 95% x 150 = 143. Weight = 113. Power to weight = 2.8 (mid cat 4
Avg kph = 30.3. Avg HR = 153 (max 161).  Gear 53x19.

cf Jan 29, 08 20min TT - Avg Watts = 140. Avg cadence = 92.
FTP = 95% x 140 = 133. Weight = 113. Power to weight = 2.6 (borderline cat 4
Avg kph = 29.1. Avg HR = 155 (max 161).  Gear 53x21.

Both tests done on identical flat CT course indoors.  Over 3mos, ~7% power improvement, which translates to only 4% faster. A little disappointing, and certainly way below the 12% improvement Jorge's athlete experienced. However, I did manage to push a bigger gear than the TT 3mos ago.

I wouldn't say that's 'way' below.  Looks like a nice improvement to me!  Nice work!

2008-04-22 11:45 PM
in reply to: #1354682

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Subject: RE: Increasing power threshold over the winter

patricia7 - 2008-04-22 1:31 PM Today Apr 22, 08 20min TT - Avg Watts = 150. Avg cadence = 88. 
FTP = 95% x 150 = 143. Weight = 113. Power to weight = 2.8 (mid cat 4
Avg kph = 30.3. Avg HR = 153 (max 161).  Gear 53x19.

cf Jan 29, 08 20min TT - Avg Watts = 140. Avg cadence = 92.
FTP = 95% x 140 = 133. Weight = 113. Power to weight = 2.6 (borderline cat 4
Avg kph = 29.1. Avg HR = 155 (max 161).  Gear 53x21.

Both tests done on identical flat CT course indoors.  Over 3mos, ~7% power improvement, which translates to only 4% faster. A little disappointing, and certainly way below the 12% improvement Jorge's athlete experienced. However, I did manage to push a bigger gear than the TT 3mos ago.

Very nice improvement Patricia and its only April. Keep it up! Cool

2008-05-03 5:57 PM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter

Just to close the loop on my own progress, a week ago I did another 2 x 20' test.  The result was an FTP of ~310w.  My FT increased 7% from the beginning of the year and is right about at the level I peaked at last season.  If not for a bout of the flu, I think I could probably have done a bit better.  I did get my weight down, so power/weight is at a new high (3.7 w/kg).

I managed this on no more than 3 rides per week.  Almost all riding is 'focused' though--no easy spinning rides.  Today I did a race rehearsal for my HIM in 2 weeks--it was my easiest ride (measured by IF) of the year.

I'm beginning to think that at some point, I should do a more bike-focused block for several months and get some more volume to go along with that intensity.  Longer-term I'd like to be at 4+ w/kg.

 



2008-05-04 7:13 AM
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Subject: RE: Increasing power threshold over the winter
JohnnyKay - 2008-05-03 5:57 PM

Today I did a race rehearsal for my HIM in 2 weeks--it was my easiest ride (measured by IF) of the year.



Nice work, JK. That is solid, especially since it's only May! You are going to tear it up.
2008-05-05 9:52 AM
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Subject: RE: Increasing power threshold over the winter

I have a questions...

I did two races last two weekend where my power was up but my time was either exactly the same or slower...

First was last weekend at Bassman

HIM 10/07: Loop 1: 1:37:04, NP 141, avg HR 136
This race 4/08: 1:37:04, NP 159, avg HR 147

This past weekend

Watts were 16 higher this year compared but my time was 90 seconds slower on 9 mile course

I look at factors that effect speed...weight-I weigh less this year, aero position on bike-no change and same bike, wheels- Zipps for HIM and this years races not for this past weekend's race a year ago, clothing- wore a tight fitting bike jacket for both races this year, HIM I just wore tri top. This year have aero helmet last year didn't.

I'm thinking that weather & wind effected me this year as my speed was lower this past race and equal with higher power last weekend. Is there anything else I should consider? I ride in aero all the time other than up some hills and I don't think I move my head around much.

Improving say 10 or 20 watts with no other changes with same weather, I would love to know how much faster I could be. I know it isn't that much .25 or something maybe? Impossible to figure it out though, right?

2008-05-05 10:11 AM
in reply to: #1381895

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Subject: RE: Increasing power threshold over the winter
Hard to compare since conditions can be quite different.  Wind can easily account for those differences. 
2008-05-05 10:38 AM
in reply to: #1381895

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Subject: RE: Increasing power threshold over the winter
KathyG - 2008-05-05 10:52 AM

Improving say 10 or 20 watts with no other changes with same weather, I would love to know how much faster I could be. I know it isn't that much .25 or something maybe? Impossible to figure it out though, right?

Kathy, I've same frustrations.  My tests showed 7% power improvement, translating to only 4% faster.   But here's a table that may be helpful, all other things being equal

http://www.computrainer.com/html/manuals/workout/Table2.html

2008-05-05 11:30 AM
in reply to: #1382037

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Subject: RE: Increasing power threshold over the winter
patricia7 - 2008-05-05 11:38 AM
KathyG - 2008-05-05 10:52 AM

Improving say 10 or 20 watts with no other changes with same weather, I would love to know how much faster I could be. I know it isn't that much .25 or something maybe? Impossible to figure it out though, right?

Kathy, I've same frustrations. My tests showed 7% power improvement, translating to only 4% faster. But here's a table that may be helpful, all other things being equal

http://www.computrainer.com/html/manuals/workout/Table2.html

 

Thanks..shows I should be maybe .5-.7 mph faster not even or slower in the case of the race yesterday. I do wonder if anything else could be slowing me down..which is why I thought of the externals maybe beyond weather.

Weather including wind does effect pace on the bike in a huge way. I did  a series of TT last summer, same course. The week I go the higher power I was second from slowest. First week with my lowest power numbers I was the fastest.

For my race Sunday my coach gave me power numbers and said something time will be what it is for the given day..how true. 

I look forward to hearing what my coach has to say.



2008-08-23 4:51 AM
in reply to: #1097826

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Subject: RE: Increasing power threshold over the winter

Just searched over the forum and found this topic.

I am looking to accomplish this target of getting a power meter and dedicate myself on it over the incoming off-season.

Few questions:

1) which power taps should I consider on the market? Ergomo?

2) which is a good training book to understand numbers and training plans with PT? I found this one

http://www.amazon.com/Training-Racing-Power-Meter-Hunter/dp/1931382794/ref=sr_1_1?ie=UTF8&s=books&qid=1219484762&sr=1-1

 

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