Sunday, July 27, 2008

2008 IM USA Race Report


“The important thing is this: to be able at any moment to sacrifice what we are for what we could become.”
-Charles Du Bos


IM USA 2008 Lake Placid, NY


After securing a IM spot at the Florida 70.3 with my NC training crew in May, I hoped to get some consistent training in and have another shot at a fast run in Lake Placid. It was not to be…life interfered and, aside from solid bike rides, I wasn’t able to string together consistent run and swim training.

The challenge was to sort out how limited my swim/bike/run fitness was and then attempt to achieve an optimal time based on this fitness. Ideally, this approach should be used for every race, as opposed to shooting for PR’s or arbitrary time goals. Given my constraints, I felt my margin for error was particularly thin and hence, my caution.

In prior posts, I modified Gordo’s tests for aerobic endurance. I knew finishing wasn’t an issue…I was trying to establish at what pace I was capable. What I established was that my bike was pretty solid, but my run and, less so, my swim were going to be challenging. Without a tremendous amount of detail, I deduced this by noting a lack of speed increase despite large effort increases at the end of both the swim and run sessions. The bike session was surprisingly strong, despite several efforts to absolutely blow myself up during a challenging long ride.

With this knowledge, I knew I would have to ratchet back the effort on the swim and bike in order to keep running at the end of the marathon. Last year in Canada, I imploded the last 3 miles which resulted in a 3 ½ minute positive split. Given my current fitness, I wanted to limit this loss in Placid.

So, the race plan? Lower hr avgs on swim and bike than in Canada in order to hopefully finish the run.

2007 IMC avg swim 145/bike 145/run 145

2008 IMLP Results:
Swim Time Avg HR
Lap 1 0:30:14 145
Lap 2 0:31:29 151
total 1:01:43

T1 0:04:44 158

Bike
Lap 1 2:44:19 137
Lap 2 2:39:42 139
Total 5:23:37 138

T2 0:01:56 128

Run
Lap 1 1:41:39 142
Lap 2 1:51:58 139
Total 3:33:37 140


I’m not certain the splits on the bike are reliable. My battery in the SRM crank arm died the week before the race, so I was relying on my wrist hrm. In the early part of the bike, the only time I saw it picking up was on the climbs when I wasn’t aero…when stretching out on the bars, it wasn’t picking up. I really didn’t even look at it by midway through the first loop as it wasn’t giving me reliable feedback.

The swim was nice. I was bilateral breathing 85-90% of the time and ended up with a 1:30 positive split. Not sure about the big increase in heart rate; likely as much a result of my easy start from the far right and away from the crowd artificially lowering the first half more than an increased rising effort in the 2nd. Review of the top 300 swimmers demonstrated no even or negative splits. Aside from Pontano & Bonney’s positive splits of 30s, nearly everyone else had more than a minute positive split. This ended up being a PR swim for me by a minute on tremendously less effort. The course and submersed line really made the 2nd loop easy and I never sighted the entire 2nd loop.

The bike was nearly all on feel. After taking the first climb and descent exceptionally easy, I cruised in the 1st loop. A text chat with Gordo prior to the race reminded me to “have fun”. Nutrition to this juncture was on spot and I consumed 840 cal of Infinit. After cruising through bike special needs unsuccessfully ( despite stopping and waiting for what seemed like an eternity, they couldn’t find my bag “sorry, no bag for #1048”) and resigning myself to nutrition plan b (gels with water), I continued on to loop 2. Nothing special, just cruised the loop. Review of the splits following the day demonstrated around 5 negative splits in the top 100 rides, so it was a solid ride on a reasonable effort. The low hr. is likely a combination of course set up (tons of long downhill descents that last a long time) and unreliable hrm data.

The run…not much to say. Started slow and ended slower. By the last 10k, I was simply holding on. I had some "weirdness" (left ant. Tib resulting in a foot drop) that I hadn’t experienced previously. The other thing I noted was that I quit taking splits in the last half similar to IMC last year. Retrospectively, I think I have some mental work to do here. Instead of zoning out, I need to concentrate and work on each mile. I clearly lost focus during this period of the race both years.

Evaluation:
2008 IM USA
swim 148
bike 139
run 140

I’m glad I did this race. It was mentally tough and I was able to confirm some race preparation methods that I’ve been working on for myself and a few others. More on this in a future post.

Thanks for checking in.

J

9 comments:

KP said...

This is simply an awesome race. I know what you went through before this race. You have humungous mental strength. The guys that have it never admit, so I'll tell on you.

GREAT RACE!

Your pal,

KP

BRFOOT said...

Looks like less than ideal conditions on less than ideal training didn't seem to slow you down to much. I too have had the ant tib issue. In my case I've narrowed it down to foot angle on the bike. I pull with to much toe up then end up with some compartment syndrome. Makes for an interesting run.
Enjoy your recovery!
Bryan

Jeff Shilt, M.D. said...

Thanks, KP. Praise from someone as tough as you is valued. Though as most things go, my mental toughness has slowly improved with each race...I was a virtual wimp when I started. Breakthroughs at each level are as much mental as physical and I have a large one ahead of me to get past the sub-10 finish to sub 9:45 game.

J

Jeff Shilt, M.D. said...

Bryan:

I've gotten pretty hypothermic at the past 2 races...IMC I was in the med tent with warm IVF's and layers of blankets before the shivering stopped an hour later. Knowing this, I hit the massage room, drank plenty of hot broth and pre-emptively got covered with several blankets after we saw my temp was 96.8. My feet and hands were still pins and needles when we headed for home an hour later, so, I suspect ant. tib thing had something to do with the cold.

Are you a power crank user? In addition to hip flexor work, that is the second muscle group that is heavily engaged by the PC's.

How is the training?
Jeff

BRFOOT said...

Jeff
I have played on the PC's just to see what it was like and to see how smooth I was. But I have not trained with them. Seem pretty spendy to me and think for that kind of money I would rather have a power meter or computrainer. But I'm pretty confident that my biggest problem on the bike is me not riding the bike enough. It's the hardest one to find time for because it takes so much more time. Lame excuse I know. As for my training in general it's pretty much running right now. Bike about 1-2 times a week. I only have 1 more tri race this year and it is an Oly. The big thing on the radar is the Portland marathon I'm going to try to qualify for Boston. Hence the run focus.
You learning your way around Boise?
Bryan

Jeff Shilt, M.D. said...

Boise is good.

Despite the controversy, I think PC's have a place. They overload muscles that aren't otherwise easy to work out. My belief is they are best for "shufflers" as they improve hip flexion and swing through during gait.

Best of luck with the marathon training.

Jeff

Herbert said...

Nice race there. Sorry though I moved to Winston-Salem a bit too late to get in a few sessions with you.

Let me know when you come back into town.

Jeff Shilt, M.D. said...

My loss as well, Herbert. Hope all is well in W-S. It is a great town full of super people.

Hopefully you will meet the training crew if you haven't already. My brother is still in town and always looking for some poor hapless soul to abuse since I left...

Jeff

Gordo Byrn said...

Promise me you'll smile in your next finisher's photo!

g