Showing posts with label CTL. Show all posts
Showing posts with label CTL. Show all posts

Friday, 12 August 2011

Expectations

Before I had Otter, I had fitness. I had watts. I had several seasons of consistent training and racing, virtually injury-free, and with some pretty decent results.

This is what my PMC looked like:
beforeO
January to October 2010: Before Otter

In January I was just starting to rebuild after a couple of months off following the Ironman world championships in mid-October, and 2010 was the season I went from triathlete to cyclist. The big peaks indicate periods of huge training loads (February in Lanzarote, April with lots of road racing, July at the Ras Cymru). Between the peaks -- which were followed by actual peaks in performance -- there are a few troughs where life took over: illness, minor injuries, holidays. The end of the season in early October coincided with peaking for hill climbs, thus shorter more intense training sessions for very short (~5 minute) races. Over the whole season I went from a CTL of just under 70 to a peak of over 120, then tailed off to 85 by end of season.

With this in mind, I had great ideas of how life would be once she was born, how I would take a few weeks to recover then get back into shape as quickly as possible. Hours-long road races and TTs were out, of course, but shorter stuff like hill climbs seemed like just the thing I could do after childbirth. Supposedly my extra red blood cells would mean a kick to my Vo2max and everyone knows that you lose weight while breastfeeding, right? HA HA.

This is my PMC now:
afterO
October 2010 to August 2011: After Otter

From the 85 I was at last October, my CTL fell dramatically over the winter, picked up again in spring, then went into freefall to an all-time low of 30 at the start of August. I'm holding that steady now, but not really building it back up, though that's more due to lack of time to train than lack of desire.

But even with an unplanned c-section (and my fitness did play a big role in helping me recover quickly from that), I still thought post-birth that I could fulfill my pre-birth expectations. Two weeks afterwards I rode my bike for the first time -- stamina was low, legs felt terrible, but ah the fresh air! The wind on my face and the sun on my arms! Never mind the watts.

Then a few more weeks passed and my power didn't seem to be improving. Worse yet my body just didn't want to push itself much. And apart from the massive weight loss I got in the week after she was born, I wasn't losing any more! It felt like I was newly pregnant again -- outwardly not looking too bad, but inwardly no legs, no motivation, no power. And no sleep to boot. Still, I was happy to be out on the bike. Though starting to rethink my expectations a bit. Ok, definitely no road races. Probably not even a 10 mile TT, especially with wrecked ab muscles and a sore lower back in desperate need of some core work. Even hill climbing, that beacon of hope in the distance, was starting to look pretty unlikely.

Nine weeks in, I now have to admit that 2011 is going to be a washout season. My FTP has barely climbed from the 185 watts I had in April to 205 watts today. Last year's 240-250 watts seems like a dream. The last 5kgs of pregnancy weight is not going to come off my body without a fight -- probably not til Christmas when Otter starts to wean, or maybe even later til I completely stop breastfeeding. Which means that there's no way I'll attempt hill-climbing, which is all about low weight and high watts. Pretty much the opposite of what I have now!

So 2011 is the season that wasn't. Quite forgettable in athletic terms... yet so memorable in life terms. We have the best prize of all -- we have Otter! What's a few missed races and lost watts when I have a beautiful kid to show for my efforts.

FB

FB5
How long til she's on a bike of her own?

Tuesday, 15 March 2011

"So how long are you going to keep riding?"

... must be the most frequently asked question of me these days when I'm out on a group ride. I guess people assume that sooner or later I'll stop, and I guess I will stop at some point. But when? Who knows? I always say in reply, "as long as I can!" then add that while I've never done gone through a pregnancy before and really can't predict what will happen, I'll continue to ride as long as I'm comfortable and healthy and happy with it. Which is true. I see no reason to get off my bike and with the days getting longer again and the weather improving, the last thing I want to do is stop riding!

The funny thing is, after a huge drop in fitness last autumn (that first trimester really kicked my ass), I've been bouncing back quite steadily. Late last summer, post-peak and post-holidays, my CTL was hovering around 100 with a few road races and a handful of hill climbs to go before taking a real break. Then I got pregnant and by Week 6 -- within two weeks of the embryo implanting itself -- morning sickness had hit and my life was turned upside down.

It was like suffering a two-month hangover. Energy I used to have disappeared, I suddenly went completely off some foods and couldn't get enough of others, training became a miserable chore (so I stopped training, though of course I kept riding), and generally I felt like crap for the next eight weeks. My CTL plummetted from 100 to 59 by mid-November and while I started to feel better around this point and managed to get out more (week 14 marked a big turning point), the bad weather and then going away for Christmas kept me from any consistent riding for a few more weeks.

In the meantime, I had lost a lot of power and had to rejig my FTP to compensate for it. Not wanting to do any proper FTP testing (and I suspect my power curve has gone a bit haywire these days anyway, what with my top end aerobic power dropping like a rock but my low level endurance dieselling along like it always has), I estimated my threshold using perceived effort and muddling with the intensity factor of various rides.

This meant my tried-and-tested 240w FTP in late September was cut nearly 15% to 210w in one fell swoop in early October (numbers from the National Hill Climb in late October, the only race I've cared about since I got pregnant, confirm this). Then from the end of November onwards I gradually gained some back, leaving me with about 215-220w these days, though I feel that may drop again as my lungs seem to become more and more encroached by a growing baby! So my PMC chart below is based on those estimates, meaning the TSS and CTL numbers will be a best estimate as well.

7monthsPMC_extra
PMC from September til now (week 28).

I was interested right from the start in trying to stay as fit as possible throughout pregnancy, and scientific curiosity motivated me to track it as best I could. So much to my delight, about halfway through the second trimester I realised that I was getting stronger again, and actually wanting to push myself a bit harder. Within reason of course! My body simply won't let me push into uncomfortable territory for long these days anyway; I can hover happily around a sweet-spot tempo effort but any hard effort leaves me cranky and tired afterwards.

But I can still ride lots and often, as long as I stop frequently and put easy days between hard days. Last week I had a TSS of 780, putting in over 350km and 13 hours of riding, the most I've done in any week since September. And since my season's low of 56 CTL at end of December, I've managed to climb steadily back up to 75. Eventually I will have to stop riding, but if I can keep that kind of fitness going between now and then I'll be pretty happy.

Obligatory bump shot:

Preggo
That silly look must be what they mean by "glowing"?

bikebump2
Bump in KW kit

Sunday, 30 May 2010

Unscheduled Downtime

PMC_May2010
My dwindling fitness graphically portrayed, thanks to some unscheduled downtime.

After our 10-day monster training camp in Lanzarote in early March (blog post about that still to come), I carried some pretty great form and fitness straight through til the Bedford stage race two months later. Well... to be fair, that form was starting to get somewhat ragged around the edges by then, and as a former "big event" triathlete I wasn't quite sure what to do about it. My years of training until this year have been based on the train hard, train harder, train so hard you're dead, taper/rest, then race schedule that I really had no idea how to approach this week-in week-out constant training and racing. How does one maintain fitness without too much fatigue and still have good form for races? So after Bedford I decided the best way to hang on to my form yet stay fresh was to forego the weekly long rides and stick mostly to shorter stuff, either as races or faster training rides. After all, the longest non-TT race I'll do this year will be less than three hours, so why the need for 100 mile training rides?

So with a CTL hovering nicely around 110 and TSB plus or minus a few digits, I settled in these past few weeks to that plan. And while it seemed to be working in terms of freshness and fatigue balancing into some semblance of form, I still was missing that zip in my legs that I had back in mid-April. I wasn't awesome when I wanted to be; form in races seemed to come and go when it felt like it. Thursday night handicap AKA training race? Great performance! Southeast road race divisional championships? Meh. Crystal Palace saw me relying more on good position and timing than on good legs, and the National 10 mile TT last weekend could barely garner FTP watts. What to do?

Then, a crash a week ago Friday (bringing with it some unwelcome road rash and bruises) made the link between my body's fatigue and freshness even more tenuous, and finally last Tuesday the saddle sore I'd been carefully nursing for the past few weeks was no longer a minor annoyance. So as a result I've been off the bike for six days with at least another two to come before I dare try my luck matching arse to saddle again.

I've been trying to find a bright side to this as I watch my CTL drop like a stone with every passing day, now below the level it was when I finished the training camp in March. And I think it's this: downtime isn't necessarily a bad thing. The timing isn't catastrophic. I'm not truly sick or injured, so building my fitness back up shouldn't be an issue. My peak from the last major build came about six weeks later, and looking at the calendar, the same timing now should mean good form for the Essex Giro national series race at the end of July. So in the end I think I've answered my question about form and fitness and how one races all summer long trying to hold a peak: you don't. At some point you just have to let it go, take a rest, then work to build it up again. I mean, I could race 12 months a year non-stop, but I suspect I'd just end up frustrated that I never felt 100% fresh and zippy. Some downtime, unscheduled or not, is required.

Now I just need to figure out how to make the races that count your best ones... but I have a sneaking suspicion the answer will be much the same. This is a big reason why I love cycling: there's just so much that can't be predicted, though we data geeks sure love to try.

Wednesday, 23 September 2009

Peaking and Tapering, Part III (the triathlete's dilemma)

Having written Part I musing over my taper for Ironman Lake Placid, and Part II about how I was going to fix this problem for Ironman Kona, I recently stumbled upon some important information leading me to post Part III: the triathlete's dilemma. Thanks to the Endurance Nation folks for starting this discussion (maybe it will get moved to a Hall of Fame thread so the public can read it too) and to Russ Cox for helping me out by analysing his own numbers. In fact, I'm looking forward to meeting up with Russ in Kona for an evening of number-crunching geekiness as we try to work out how and why a good taper works.

The dilemma is this: in triathlon, you do three sports. At the Ironman level, I think we can assume most people swim a reasonable amount but not enough to have a severe impact on their training stress. Huge amounts of swimming just aren't a good return on investment for time spent training vs. time gained in the race. So that leaves us with cycling and running. Running tends to be harder on the body, requiring more recovery for most people after intense or long workouts. Cycling can be done in larger volumes and for longer periods at a time, as the impact on the joints is not as great. Thus the fatigue and associated recovery time from running is likely different than the fatigue and recovery from cycling. So the question is, why do we measure ATL (fatigue) on the same scale for both cycling and running? And more importantly, why would you want to pay much attention to a combined Training Stress Balance when that could hide vast differences in fatigue between the two? The answer is, you don't.

Once I had this "a-ha" moment, I looked back at my IMLP taper and sure enough, my TSB was +33, but that consisted of a bike TSB of +26, while the run TSB was a mere +7. In other words, no wonder my legs felt fatigued out there, my run was not nearly tapered enough! Too much running in the week or two leading up to the race led to this, which was caused by my blindly following my plan without thinking that my mileage up to that point had actually been below what the plan called for. Running 3-4 hours a week in training, then tapering by running 2-3 is not that smart. But low-mileage running is a topic for another post.

I haven't found much information yet on the "ideal" CTL, ATL and TSB numbers for the run vs. the bike in Ironman tapering (though digging through the Google Wattage list and other blogs has got me a bit closer to understanding it), but using Russ's numbers it looks like a run TSB of +15 or so worked for him. I'm aiming for a +12 on race day. I've also adjusted my run ATL to a 10-day constant rather than 7-day as I have on the bike. Wary that I backed off too much on the bike for IMLP, my bike TSB on race day in Kona will be +19 and I'm trying to limit my CTL losses to 13-14%.

See my charts below for the way it's going to look. Note that my TSB will be steadily climbing, rather than seesawing as it did for IMLP, and likewise my ATL and CTL steadily falling. And apologies for mixing and matching Performance Management charts from both SportTracks and WKO+. I finally spent a painstaking evening putting all my workouts between now and Oct. 10 into WKO+ and messing with the length/intensity of each to get what I believe now is a more ideal TSB. So the charts below reveal my new numbers:

run
TSB+12, CTL 37 to 30 for a loss of about 20% (that loss is perhaps still a bit high? but again, my run volume in general has been low compared to the intensity)

bike
TSB +19, CTL 85 to 73 for a loss of about 13-14% (TSB still a bit high, but we'll see how well I acclimatise to the heat and humidity in Hawaii)

total
TSB = +31, CTL 129 to 113 for an overall loss of 12-13%

runPMCedit

bikePMCedit

Thursday, 17 September 2009

Peaking and Tapering, Part II

In Part I, I talked about how (I felt) my taper wasn't quite right for Ironman Lake Placid. I've done more training hours, more consistent training, more intense training and more volume this year than in any year before, so my previous tried-and-true taper method also needed some reworking (it appears). For Ironman Hawaii, I'm going to be a bit stricter on myself in adhering to scheduled workouts in the last few weeks before the race -- both in the sense that I don't overdo it and I don't underdo it -- and hopefully I can have a better race day.

Ultimately, I want to use the Performance Management Chart (PMC) to plan my workouts to help me achieve two things by race day:
1) TBS of about +20
2) CTL loss of about 10% from its highest point.

To this end, the first thing I did was plug my proposed workouts for the next three weeks into SportTracks, along with their projected TSS values. Incidentally I find SportTracks with the Training Load plugin way easier than WKO+ to work with; the calendar makes sense, the notes field lets me add stuff seamlessly, and the general UI and feel of the software is so much more intuitive. And since I'm using TSS/TRIMP values to determine my training load and stress balance (the plugin by default uses HR), the PMC will look the same in WKO+ as in SportTracks -- just nicer. :)

I got my projected TSS values by looking at past similar workouts in WKO+. For instance, I know that a long ride of ~100km/4hrs at an intensity factor of .70 will give me about 200 TSS points. Similarly, an hour-long run including some mile repeats gives me a TSS of 100 or so. Swims I generally use one TSS point per minute, less if I swim easy and more if I swim hard.

Three weeks of workouts, including the final two weeks of peaking/tapering from my Endurance Nation plan, plugged into SportTracks gives me this for my PMC:

PMC
projected CTL/ATL for October 10, 2009

That's a CTL of 119 (down roughly 10% from a projected high of 131 on Sept. 29) and an ATL of 97 to give me a TSB of 22 the day before race day. The TSB is a bit high maybe. But it's also likely that my workouts will feel a bit harder once I get to Kona as I'll need to acclimatise a bit, so having a bit extra on the TSB should be fine. Interesting to compare it to my LP taper (the big drop leading up to July 26) and see how it drops off more gradually and with fewer ATL spikes until the final week.

It's an interesting balance, tapering to shed enough fatigue without losing too much fitness. The problem is, as TSB rises, CTL decreases which can mean more than 10% fitness loss on race day. So which one is more important, keeping to a no-more-than 10% fitness loss, or having a TSB of +20? I think this is probably a problem for most athletes who carry a high CTL: the higher your TSS/day (which is what CTL is), the more you have to do to maintain it. And the more severely you taper and cut your volume, the more CTL drops compared to its absolute highest.

The highly analytical article from Coggan describing the art and science behind the PMC is here, but in my view the most important sentence is this:
in the Performance Manager concept, an individual’s CTL (and the “composition” of the training resulting in that CTL – see more below) determines their performance potential (at least within limits), but their TSB influences their ability to fully express that potential. Their actual performance at any point in time will therefore depend on both their CTL and their TSB, but determining how much emphasis to accord to each is now a matter of trial-and-error/experience, not science.
But I think it's also important to keep in mind what ChuckieV has said about tapering and freshness (though I have to say he loses me with the "anyone training less than 15 hours a week only needs a few days of taper" bit!):
Quite often athletes erroneously aim for being "fresh" when Ironman day arrives, when they really just need to focus on being rested.
Rested is what I'm going to have to be to put on my best performance. That means early to bed every night, naps if I need them, limiting the time spent on my feet doing touristy things and generally staying away from the hustle and bustle of 2000+ other Ironman athletes stressing about their race.

Sunday, 6 September 2009

Peaking and Tapering, Part I

Yesterday I had an enlightening moment reading Joe Friel's blog about Projecting Race Readiness. I had known that my IMLP taper wasn't right, that I had tapered too much and lost too much fitness, resulting in a less-than-ideal race performance, but hadn't really crunched the numbers to see how. I had followed the protocol of 70% of usual volume in the first week of taper, 50% in the second week, 30% in the third week. Still, I felt flat and underpowered on race day and terrible compared to last year at Ironman Germany where I had tapered so carefully and hit race day feeling great.

Two things stood out for me in particular from Joe's post:
1. Training Stress Balance (TSB, or CTL minus ATL) should be about +20 by race day.
2. Total loss of Chronic Training Load (CTL, aka fitness) should be kept to about 10%.

I had a look at my own Performance Management Chart from WKO+ and checked out the numbers. Sure enough, between my taper start date of July 5 and race date of July 26, my CTL (blue line) had gone from 133 to 112, a 15% drop. And my TSB (yellow line) was over 30, way too high! Ironically, being more "rested" through a lower ATL (red line, aka fatigue) and higher TSB is the very thing that helped me feel slow and tired and flat during the race.

Tapering is certainly part art, part science, and there are a lot of factors that could have affected my race day readiness in Lake Placid. But from studying my data below, I can see clearly now how my drastically reduced training load -- too much too soon -- nearly blew my race though a poorly-executed peak period and taper.

PMC
How not to peak/taper

In Part II I'll take a stab at describing what my peak period and taper for Kona should look like, and what I'll do differently to achieve it (and in doing so, hopefully achieve a better race day freshness than I did at Lake Placid).

If you're not familiar with WKO+ and all the terms I've used, here's a basic crash course.

Monday, 9 March 2009

Training volume + weight loss = getting sick more often?

Since my training year officially started the week of January 1, I've been trying more or less to improve my eating habits (i.e., eat less food in general, and less junk food in particular) and lose a bit of weight. Not lots, just the icing off the cake so to speak. According to popular research, each pound lost is a minute gained in a marathon, and of course climbing well on the bike is all about being lightweight.

After reading that Dutch pro triathlete and 2008 Kona runner-up Yvonne van Vlerken lost 4kg last year off her "athletic frame" (what a nice way to say short and stocky), improving her speed and performance, I figured losing the same would go a long way to achieving my Kona dream too. As of January 1, my own 5'2" athletic frame weighed over 57kg. The goal is to get down to 52kg for race day, August 2.

Right now, in mid-March, I'm at about 55.5kg. This is the lightest I've ever been in March and it shows -- my jeans are a bit loose now in the waist (though tight in the upper legs thanks to all those 14% hills I've been riding!) -- and I feel pretty toned. Since I don't have a body fat monitor, I have to use a combination of the scale, how I look in the mirror, and how my clothes fit, but I would say that even though I've been putting on muscle from all this running, cycling, upper body weights and core work, my body fat is still down. Apparently I'm now considered a hot roadie even, although I think there's a bias there....

In late January, we had a little holiday on Lanzarote to kick start the season with some high volume bike training, and as usual when we got back I promptly came down with a cold. No worries, within a few days of rest and reduced intensity training I was over it and back to the regular grind. Since then I've steadily ramped up my training volume to an average of 12 hours a week. I've been eating well, recovering well, sleeping mostly well (though never enough, it seems), and feeling fast, sleek and great. Strong as an ox, right?

Last week I had some shorter workouts with higher intensity, then the plan for the weekend was higher volume at lower intensity. Friday afternoon I ran 28 hilly km in 2:20, Saturday I rode 60km on flat terrain in zone 1/2, and yesterday was a 90km group ride with 750m of climbing spread over 3 major hills that I attacked reasonably hard, with the rest of the ride pretty easy. Came home, threw on my recovery tights, ate a good meal, and lazed in front of the TV for most of the evening. I even managed to make it to bed before 11pm as I was feeling a bit tired from 8 hours of training over the past 48 hours. But by 2am I was up and sneezing, coughing, completely congested... with what seems to be another cold.

My resting HR this morning was normal, so obviously I'm not too sick. Today's a scheduled easy day with just a short form run anyway, along with some core and upper body work at the gym that I may push til tomorrow. So I'm not too worried, but I am a bit frustrated and wondering what's up with my getting sick so often. This is my third cold in 5 months, and for someone who has more than once gone an entire year without a cold, that's pretty bad! Is it the weather in my adopted country? My increased training volume? My slimmed down physique? The fact that I'm now living full-time with a (wonderful and loving) night owl and poor sleeper? All of the above?

SportTracks has a great little plug-in called Training Load, which is basically a poor man's Training Peaks for those of us who don't have a power meter (yet!) It takes the time spent in various HR zones and intensities for training activities and calculates a TSS score for each, then graphs CTL, ATL and TSS over time. This is what mine looked like this morning:

Training Load 2009-03-09

blue = CTL aka fitness level
red = ATL aka fatigue level
pink = body weight
brown columns = the TSS or Training Stress Score for a given day's activities with general scales of low, medium, high and epic.

The "epic" event and accompanying spike on the farthest left is the marathon I ran on November 9, 2008. The following month I took it pretty easy as evidenced by the drop in both ATL and CTL, then got going again with serious training in the new year. The big jump in the middle-right, and corresponding drop in body weight is the Lanzarote trip. Since then my fitness has been steadily climbing, my fatigue is being managed through easy days and days off, and my weight has been dropping.

It's nice to see my hard work translated into pretty graphs showing improved fitness (being the data geek that I am), but I'm starting to wonder if 52kg is going to be too light to be both fit enough and strong enough for Ironman UK. Do I really have 3.5 more kg to lose, or is the risk of illness too great? If I keep going the way I am, I'll lose that weight just from maintaining my current diet and ramping up the volume in early summer when I start doing 5-6 hour rides. At that point, I guess I'll find out whether I get to eat -- must eat, even -- all the dessert I want again, just to stay well!