Depends, there is a school of thought that you train specific to your event closer to the event.
So, in the case of iron distance, you could argue that you would do the interval stuff now, and then, closer to the iron man, switch to more endurance work. Much like you would do speed work at the beginning/before starting a marathon plan which would entail a lot of endurance work.
If you suggest that I should be doing z2 work at this time of year, when would you suggest I do intervals (out of curiosity).
I could understand doing z2 work now, building a base, ready to tackle sprint (or even oly distance at a push) type races in the spring, where I would switch to intervals to build speed, but to do z2 all the time I can't see how you could cause stress in order for adaptions to take place. Surely, if you do z2 all the time, you end up being very efficient at going slow.
Im not having a go, just want to know the reasoning behind so many people suggesting z2/ training at z2 at this time of year.
Thanks for the link. Interesting. Will be having a further delve into some more papers, but it looks like there's not really that much research out there with a decent sample size.
back home now. Angio' went well, no sign of damage to any arteries. They also carried out an internal ultrasound on my arteries to check for any signs that the wall was becoming detached, but all ok.
Good news was the surgeon who operated races in Olympic distance And we had a good chat about my training regime and build up to that point. Also talked about what the other cardiologist said to me about exercise. His view was that you tend to get that advice from people who don't normally exercise . He suggested to lay off the intervals for a while and keep training at z2 until I get more tests done. Even written this on my advice sheet I take away with me for my wife to stumble upon
Im waiting on an appointment date as a follow up but it looks like I had a false positive of the triponin levels from the exercise. Still need to work put what happened during the trainer road, why I had a numb/aching chest, shoulder, neck and why the 1st ECG trace I had was Strange. Basically, one of these things on its own, not a problem, 3 of them together gave them concern.