Showing posts with label Old Dominion. Show all posts
Showing posts with label Old Dominion. Show all posts

Friday, September 16, 2011

The Uphill Experiment: Two-hour-loop reprise

A couple of weeks before this year’s Iron Mountain Trail Run (IMTR) I ran “the two-hour-loop.” This is a course I scouted back in 2005 and used as a benchmark while training for the 2006 Mountain Masochist Trail Run (MMTR). The route starts near Skulls Gap and contours along the Iron Mountain on “old 84” to Hurricane Gap. It crosses the ridge of the mountain at Barton Gap and then drops to the bottom of the mountain at the trailhead for Jerry’s Creek (near the trailhead for Rowland Creek Falls). It then climbs the mountain again, following Jerry’s Creek, to near Skull’s Gap. The terrain has equal parts single track, double track, and gravel forest service road. The course climbs 2700 feet in nearly 18 miles. It took about 2 hours 20 minutes to run it at first, so I decided to come back to the course at regular intervals and see how close I could come to running it in 2 hours. Treating the run like an extended tempo workout, I began to approach the 2 hour mark after a few weeks.

About that same time, David Horton came down for a training run in preparation for the first IMTR. The middle section of that course is very similar to the two-hour-loop except that IMTR follows Rowland Creek instead of Jerry’s Creek back up the mountain. During that run Horton asked me my goal for MMTR. I told him that I wanted to break 7 hours. He quickly retorted that I couldn’t do it. Only a couple of people had done it, and when the inestimable Eric Clifton had failed to he reportedly said that he didn’t think there was anyplace he could have made up the necessary time.

My response was that I’d let my result speak for itself. I also said that my training included the two-hour-loop, and that I thought when I could break 2 hours on it, I could break 7 hours on the MMTR course. Though we quickly moved on to other topics, it is interesting to note that Horton can recall this story with more clarity than I can. Part of the reason, no doubt, is that I did ultimately break 2 hours on the loop and 7 hours at MMTR. He greeted me at the finish, as he does for all runners, and was able to witness the most special moment of my athletic life.

Horton is one of the few people who could really appreciate what reaching the finish line in Montebello meant to me. That place represented much more to me than winning a race, or meeting a goal, or proving something. That race finally brought into relief the full scale geography that is me. I had first stumbled down that same campground road in 1997 in the middle of my thru-hike of the Appalachian Trail. I was empty – destitute and alone, and slept on the wooden porch of the pavilion. My second approach to the same road was in 1998 after suffering a beating through my first ultra at MMTR. My calves had shredded by mile 37, and I had to hobble on my heels for the next 16 (?) miles to the finish. I had been sunk as low as I have ever been twice – both times across from the small general store that defines that tiny town. The contrast in 2006 could not have been more apparent. I had started to build momentum on the climb up Buck Mountain, and I didn’t let up. I blasted the final mile along the road in under six minutes and charged into David’s embrace. I cried for the only time at a race.
I retired the two-hour-loop for some time after that. It wasn’t so much the weighty feelings surrounding it, but more that it’s a tough run and shouldn’t be overdone. I’ve had one other reason to avoid the two-hour-loop. It would be too good an indicator of my fitness. I was 38 in 2006, and I’ve been getting older ever since (!). I wouldn’t necessarily want to know how my performance had declined.

That is why I was so pleasantly surprised early this spring, when after a minimal flurry of speed workouts, I was able to again go under two hours for the loop. Soon after I ran a PR at the Promise Land 50K, a race I had already ran respectably. As quickly as I had begun to run fast, though, I slowed back down because my goal for this year had been to run 100s. I slowed my training and muddled through Old Dominion and the first 70 miles of Burning River. The misery induced by these races finally caused me to reconcile the space between my aspirations and my talents. So much for 100s.

I like to run fast. I decided to keep my races at or under 62 miles this fall, and to run MMTR in November once again. In preparation I’d confront whatever the two-hour-loop had to say about my fitness. Two weeks before IMTR it said 2:05. That translated into a 7:15 two weeks later – a respectable time on a tough course. Historically runners are able to run similar times at IMTR and MMTR. Of course I’d like to run faster than 7:15 come early November. So this past Wednesday I was back on the two-hour-loop, having carefully considered what I had to do to go under two hours.

Here's an experiment I would like to do: get a bunch of runners to do a hilly 8K time trial. Tell all of them to go for the fastest time they can without killing themselves. Then break them into two random groups. Tell one group to push the uphills, and explain that will help them keep the best overall pace. Tell the other group to slow down on the uphills and pick it up on the downhills, and explain how that will help them to even out their effort and yield the best overall pace. I’ve given contradictory advice – I can’t have been truthful to both groups.

I’d like to do the experiment because I know now how it works for me – and how I’ve been lied to.

There are two distinct models for understanding how fatigue limits performance, and they predict different outcomes for the experiment. A "peripheral fatigue" model says -- and this is oversimplified -- that pushing the uphills will fatigue the muscles and therefore (eventually) cause runners to slow down. It would predict that maintaining a constant threshold effort (by slowing down on uphills and speeding up on downhills) limits fatigue and therefore maximizes exertion across the whole exercise. According to this model the advice is simple – DON’T push the uphills.

In contrast, a "central governor" model says that runners (perhaps subconsciously) anticipate what is ahead and experience fatigue depending on how they interpret their current exertion relative to how much is left to run. This model at least leaves open the possibility that pushing the uphills could result in a better time, because performance depends on how the runner interprets what he or she is doing. So, while not the advice is not as clear, we can at least advise: PUSH the uphills if you can.

When I was in college heart rate monitors were just coming into use. Our team bought one and rotated it among team members during training. The idea was to make sure we were not over-exerting. The theory was built on a peripheral-fatigue model. One inescapable conclusion was that the best pacing strategies tend to even out effort across the run. In other words, all else being equal, slow down on uphills so that your heart rate remains relatively constant. We didn’t apply this to races, because in a race all else is not equal. Relative place matters much more than time, and maintaining place on climbs surely trumped maximizing overall pace.

My tempo runs are generally alone, though, and so I have tended to fall back on the theory that I should slow down on the uphills in order to get the best out of the total distance. That is the lie. And I think I know why.

On Wednesday I ran just under 1:58 for the two-hour-loop. I worked the uphills pretty hard. Part of the reason I have to do that now may be that I can’t run downhills as hard as I used to, but I think there is another reason. When we charge uphill we raise the threshold for perceived effort. We breathe hard and our hearts pound and we go for it knowing that the climb will top out and we’ll continue on an easier course. Because of the raised threshold, however, we tend to pick up the pace on the downs and flats compared to what we would have if we had backed off on the climb.

I don’t really know if this is a personal quirk – perhaps shaped by my own way of thinking about running or just my unique physiology – or a generalizable finding that would help corroborate a central governor model of fatigue. That’s a good reason to run the experiment. In the meantime, I’m going to push the uphills.

Thursday, June 9, 2011

Old Dominion 100 -- Full

Me: You’re the man! Roll through here and you’ll make up ground over Sherman.

The Mountain:

Me: Just keep an eye out for the turn. Don’t miss the turn. That will really screw you up. Where is that turn? For that matter, why haven’t I seen any course markings?

The Mountain:

Me: Now I’m really pissed. I am going tear through this thing!

The Mountain:

Me: Where is this little climb over Sherman? I’m going to kill it!

The Mountain:

Me: The sweat is pouring off me. My legs are completely hammered. This mountain has no end.

The Mountain:

Me:

Most of us live completely suspended in self-delusional fabrications. We are the disembodied characters at the center of the stories that others know of us. That bugs me. My best reason for running a 100 mile race through the mountains is that the activity inherently resists the kinds of contortions most of us can insert into our narratives. 100s are bluff proof. At some point in every 100 that I’ve run I’ve had to let go of my preconceived notions of how it would go, and how I would handle it, and just accept the circumstance as presented to me. The 2011 Old Dominion 100 unfolded in just this way.

I was in reasonable, but not top, shape. I had gotten in some long days, and some good heat runs. I have a lot of ultra experience behind me. The OD 100 was the first of four 100s I scheduled for this year. My goal was to run in such a way as to win. I guessed it would take me 16 hours if the weather was cool and 17 hours if the weather was hot. I had never been on the course, but I had looked at the stats and asked others who were familiar. I was glad that other established ultra runners entered and that the race looked to be competitive. I exchanged messages with both Neal Gorman and Jon Allen before the race. Keith Knipling was running, as well as Jeremy Pade and Karsten Brown.

The first 50 miles went as well as I could have hoped. I spent many early miles with Jon, and then a bit later with Neal. Both runners make good company, and I look forward to running with them again. I was by myself in 2nd place when I passed the 50 mile mark in 7:29. I felt the time was appropriate considering the cool morning temperatures and the easy running terrain of the first half of the course.

Both those variables changed considerably in the afternoon. Temperatures rose steadily and the protracted technical trail sections took a big toll on me. I was losing time to Neal, who had been at or near the lead from early on. I wasn’t concerned, however, because I knew that the miles from 70-85 would likely determine the race. I was biding time, trying to keep up with my fueling and hydration, and trying to stay efficient.

After mud-hole aid station at mile 70 I began to pick it up again. I ran uphill on an open double track section and by the time it turned downhill I was really moving. This was just the momentum I was hoping to build, and at just the right time. I stayed very alert to course markings. It didn’t help. After mile 73 the course flagging stopped. I followed the double track until I came to a road at about mile 75. I knew I was close to Elizabeth furnace, and that I could access it from the road. I also knew that the course followed a trail into that aid station, not the road. If I wanted to find and follow the prescribed course I would have to backtrack. Fuming, I ran back up the long slope up the double track. I scanned both sides, looking for any sign or course marking. Nothing. Finally, I came to the last of the orange flagging. I felt relief and anger at the same time. I felt relieved that I hadn’t missed a marked turn. I felt angry that someone screwed up my race. I didn’t have time to worry over that much, though, because my biggest problem was still navigating to a place I had never been with no course markings.

I ran down the double track for the second time. I was 80% sure that the turn was an “abrupt left” that I recalled from the course directions. I came to the first left turn and scouted it out. It led to a small campsite and then narrowed into an unpromising track. I abandoned it. Continuing downhill, the only other reasonable possibility was a trail marked by a sign that said simply “hiking trail.” I went for it. It had no flagging, but it contoured around the mountain a bit and headed downhill. That fit with my recollection of the course map. Just before I came to the road on that trail, I ran into fresh flagging. It led to a crossing that in turn led to the Elizabeth Furnace Aid Station.


photo by Bobby Gill

I was seething mad. How did Neal get through that section? Why was no one out on the course replacing the flagging that so obviously was missing? I certainly wasn’t going to pass the aid station without ensuring that someone got out to the critical turn and marked it. I stormed in to the pavilion and hastily convened the pow wow. Once I felt I had been heard I tried to gather myself to get what I needed for the “charge” over Sherman’s. I knew I had lost my head, had lost at least 25 minutes, and had lost valuable energy at a critical time. I gathered my hydration pack, trekking poles, and stuffed a mouth full of noodle soup into my mouth, chomping as I stormed out of the aid station.

The energy carried me about a quarter of the way up that monumental climb. By the time I got to the jug of water at the bottom of the other side, I was little more than a deflated heap. I trotted painfully along the gravel road. When the next technical ascent started I had little to give to it. Karston passed me on that, and I didn’t have the energy to care. I didn’t see much reason to continue at all. I hadn’t come here to death march and just finish in 19 hours. The last half-mile of trail before the 87 mile aid station is slightly downhill and runnable. I started to trot again, and softened a bit on my conviction to quit.

I came into the aid station and announced what I had been considering. My family, who had been following and supporting me all along, was there. Robin gave me “the pep talk.” Gavin just said, “Don’t quit Daddy.”

I just said, “OK, I’m going.” I wasn’t happy about it, but the race was bigger than me. My family is bigger than me. The mountain is bigger than me. I picked up the pace to a survival shuffle that carried me the final 13 long miles into Woodstock.

photo by Bobby Gill