Tonight’s run was a Zone 3. That means after the 5 minutes of warm up, I run for 60 solid minutes keeping my heart rate in target zone 3. It is by far one of the most brutal workouts so far, because to start my heart rate in zone 3, it means I’ve really got to pick up the pace. Well, I could raise the incline, which is still what Colleen suggests, but doing it that way doesn’t seem to help me work toward my pace goals. Hard to say really.
I suppose now is the best time as possible to start the discussion about what these heart rate targets mean. Generically, there is a heart rate maximum that is based on your age group and you work backwards from that maximum heart rate in 10% decrements. That would mean that zone 5 goes from 91% to maximum heart rate, zone 4 is 81 to 90%, and so on. Now, that’s the generic model. I have taken three tests called a Metabolic Assessment Profile (MAP) test. This is by some accounts a gimmick, but I’m a believer in the snake oil, so I don’t hear the natter of the critics. Basically, for those of us addicted to TV, the MAP test was shown in Gatorade commercials at one point, and involves wearing a mask while running on a treadmill. It uses Volume Inspired Oxygen metrics and some other components to determine how well the body burns fat while exercising. In this model, zone 1 begins at the point when the body stops burning fat and starts burning sugar (carbohydrates) for energy. Zone 2 begins at the point from there where the ratio is 50% fat, 50% calories. Zone 3 ends at the point where fat burning stops and the energy is produced exclusively from carbohydrates. It is a bit of voodoo, in that they split this range in half literally to determine where zone 2 ends and zone 3 starts. They then determine failure point and call that maximum heart rate. My current maximum heart rate was calculated at 208 beats per minute. That’s almost 30 beats per minute higher than the average for my age. My zone 1 begins at 130 beats per minute, meaning that at any lower intensities, I’m burning all stored fat for energy. NICE! Anyway, the ranges are:
- Zone 1: 130 – 140
- Zone 2: 141 – 156
- Zone 3: 157 – 173
- Zone 4: 174 – 183
- Zone 5: 184 – 208
So, with this background, my training focuses predominately on zone 2 and 3. The premise is that if I can increased the amount of fat burned in those zones, I’ll close the gap. High end athletes like Lance Armstrong and Michael Phelps have very narrow distances between Aerobic Base and Anaerobic Threshold (the start of zone 2 and end of zone 3 respectively) but it is mostly because they will burn fat more often than not and don’t really start burning pure carbohydrates (which produces lactic acid and the muscle pain most of us feel) until very, very intense heart rates. Warm up and cool down are always in zone 1, just so that I can get the joints loose and that I can get my heart rate to slow. OK, enough of that mess. This is just the frame of reference for what it means when I say my training is zone 3. I’m running for 60 minutes where I keep my heart rate in that interval.
Now, I’ve avoided some of the part I promised for each posting, but there’s a reason for that. Last night, 9.1 miles, 881 calories, an average of 7:41 per mile. Yes, that’s right. Last night marked my first 9 plus mile run EVER! OK, 9.1 isn’t exactly smoking past 9 miles, but when I consider that literally 16 months ago I couldn’t run 5 miles in one session, 9 miles is a pretty big deal for me. I was impressed and it actually was an exceptional feeling of accomplishment at the end of the run. This should also be the point where everyone understands I don’t think that I can’t run 9 miles. I am firmly convinced that my current fitness level would allow me to run at least a half marathon right now, possibly even a full. The reason I say these mileage distances as milestones is that it is a velocity statement. For those readers that may not remember their high school physics, velocity is a function of distance over time:
Which is how you get 60 miles per hour in a car, etc. That’s velocity. To say I could run a half marathon right now would mean that I’d have to allow time to shift, which means my velocity drops. I am keeping time fixed in this equation, and that means that if I want distance to increase, my velocity has to increase (basically v * t = d, if you do the math.) My goal has been velocity all along. I’m targeting 7 minutes per mile as my goal for the half marathon, which reverses the units ( t/d instead of d/t) which translates into 8.57 miles per hour. I don’t know if that’s realistic or not, but it is my target. Since I’m running 7:15 – 7:25 right now, I figured it was a reachable goal, but that may be asking a lot over the distances I’m telling myself. I can’t really say. As you can see from the raw data above, 7:41 is a LONG way from 7, but you also have to remember, I’m running the first 5 minutes at what so far has been no faster than 8:57 per mile and the last 5 minutes at what has so far been no faster than 10:00 per mile. That 10 minutes means to hit a 7:00 average over the entire 70 minutes (remember t is fixed in this madness) I am going to need to run 60 minutes at an average of 6:39 per mile!!! The fastest I’ve managed has been interval training where for 1 minute slices I can run 6:31, but that’s hardly endurance running. LOL
OK, enough of the math, formulas, and numeric discussions. The run itself was odd for me emotionally. I ran the first three miles in zone 3 at 6:58, just under my new goal pace and I was elated. For the first mile, I hadn’t even been able to get my heart rate into the target zone 3 and that meant this was going to be a GOOD run. I realized, however, that I’m probably overtraining a bit as my legs just felt gassed and while my heart rate said I could continue longer at that pace, the muscles in my quads and hamstrings said otherwise. So, I slowed down to my current race pace of 7:13 for the next three miles. Those seemed easier on my muscles for sure, but emotionally I had allowed self doubt to creep in and I had convinced myself that I might never make my target. At one point during this section, I’d considered just giving up and going home. Of course, then I cross over 35 minutes and realize I’ve reached the virtual point of no return. Now, that’s a myth in treadmill training. I can stop at any point I want. I haven’t gone anywhere. Still, part of my psyche tells my body that I’ve run 35 minutes already, 25 more won’t hurt as much as I think it can and I should “shut up and run, stupid!” Which is of course what I wind up doing. The last bit of my run (just under 18 minutes for the zone 3 hour) was at 8:00 flat. Pretty slow, but my heart rate had been creeping toward 173 and I have learned that if I hit the top of the zone, I spend the rest of my run slowing down and fighting the zone boundary. Anyway, I realized as I entered this phase that I’d done bad math in the middle and that it would likely be somewhere between 8.5 and 9 miles by the time I entered cool down. Maybe it was the endorphins, maybe it was the knowledge that I might actually make what I’d set as my next near term goal, but realizing that I might actually make 9 miles bolstered my energy and I was running effortlessly. Of course, that was a myth as my heart rate crept very close to the boundary and I just managed to finish the 60 minutes without dropping my speed one last time.
Cool down I pushed a bit more than I should have, because I didn’t want there to be any question of completing 9 miles. I can’t really run after 65 minutes at 10:00 per mile and let my heart rate drop into zone 1 effectively. I just wanted that 9 so badly that I wasn’t going to let it evade me.
When I done and back to the house, I realized something else odd about this run. I was predominately unaware of what music had played on the Nano during my run. That really means little, since I am reading TV as much as the crappy closed captioning allows. Just as a side note, I find that the typed output is LAME. Does a deaf person really use that and if so, do they think TV is horrible? I mean, a couple of the channels simply couldn’t even do basic spelling and those that did a good job of spelling and transcription did a horrible job at keeping up with the video. Anyway, if I don’t remember what I heard, then it is likely I was either focused on the run, which isn’t a goal, or I was too distracted by my surroundings, which is most often the case.
I’ve got to do a better job of calorie distribution. I had almost 1500 calories to eat for supper and that’s WAY too many. I don’t like having to eat like that at night. Still, I am convinced that having less on my stomach prior to the run helped make it a better run. Hard to say really. I also had to take another moment to consider my intake. My current targets are based on a 700 calorie workout average. 881 calories isn’t 700 and I allow myself to worry that I should be making that adjustment and consuming 3600 or more instead of the 3450 on training days. After “starving” my body once, I’m now concerned that I’ll manage to do it again. The test was 2 months ago and in those 8 weeks I’ve busted a lot of tail. Can my calorie point have changed that much in 8 weeks? I don’t know. Just more things to feed my mania, and of course the gym gets paid every time I take one of these tests, so I have no doubt they plant that seed to facilitate making more on repeated testing.
Tomorrow is a day of rest, so there won’t be a posting again until after the training on Friday.
Cheers!