I have been thinking about IM training principles and concepts a lot lately and one training concept I feel IM athletes need to address differently is the long run.
It was brought up recently on transitions and managed to have some decent conversations on there, you might remember Campbell
I have been talking online with a chick by the name of Wongstar. For 5 years she was doing IM's in the 12-13hr range and then she moved over to Brett Sutton and 1yr later she goes sub 10hr and is 1st women across the line. Apparently she beat 9 out of the 10 male Pro's too This was a strongman event I think.
I was asking her questions about her long run as it seems she is running very long and this was her response.
"4.5 hours. more than once. and then once you get faster, running 3.5hrs in a race doesn't seem so long. More painful though. keep in mind that I started out at 2hr long runs a year ago and have been slowly building up. can't just jump into that right away."
This gets me thinking a lot about IM training principles and I think people, myself included, are not doing right. All of our training principles are still based around swimming, cycling and marathon training principles, which fail to fully meet the demands of an IM event. Unfortunately, these principles are heavily supported by "Science and research" but they don't support a 10-17hr event. That is where they fail. Then to add there are very few IM specific studies that exist so essentially we are relying on "field test" by judging an athletes performance against their training in order to develop IM specific training concepts. Overtime those concepts will hopefully form the basis for some scientific research.
The critical success factors in an IM come down to just 3 things
Endurance
Race pace
Nutrition
Now when you look at the long run it is a commonly believed that the long run should be no longer then 2.5-3hrs. However, that fails those 3 points above. It work for marathoners because they are running at a much higher intensity and therefore a 2.5hr long run will be close to a marathon in distance. When I say higher intensity, it is still below their race pace but still significantly faster than IM run paces.
However, IM runs are run at sub maximal intensities due to fatigue from the swim/bike. Therefore in training the long run should be at sub maximal intensities, which it is. But the problem is 2.5-3hrs is too short, way too short to address endurance, race paces and nutrition. In other words it's not IM specific enough.
Secondly, marathoners can't afford to run much longer then 2.5hrs because all they do is run, therefore it would impact on other sessions. This would not be the case with IM athletes for two reasons, we are running at a much lower intensity and we are also doing other discipline that have a lower impact on our bodies.
Because we are running at much lower intensities in training and racing the long run in my view needs to extend beyond 2.5-3hrs in order to SPECIFICALLY meet the demands of an IM event, not a marathon.
Of course we need to say NO-WAY not true, can't be done, risk of injury is too high etc, but until we start seeing age groupers running IM running faster than I feel we need to forward plan and think a little different. Like Plaz said recently we are not swimmer, cyclists or runners, we a triathletes and we need to look deeper into the demands of our events and start addressing those demands in training.
I have other ideas I want to address and these will include
Brick sessions
Long bike
Swim intensity
Training in 2-3 day blocks
Hope it helps
Fluro