rekrunner wrote:
I'm kind of wondering why you "need" a straight answer.
Currently the 800m is considered 69% (+/- 4%) aerobic.
Here is a recent similiar discussion about 1500m:
http://www.letsrun.com/forum/flat_read.php?board=1&thread=3876084There are three links in that thread, that if you follow them, you will see that the 800m percentages have evolved over time from anaerobic to aerobic:
1) 65% anaerobic
2) 50% anaerobic
3) 69% aerobic
Luckily you don't have to change the focus of your training. If the 800m was always so aerobic, so was your training. You just do the same training, but change how you think about it.
The 800m as every other distance run, the percent of aerobic and anaerobic is just a mean value that doesn´t represent the reality.
The 3 main reasons are:
- one is that the percent of anaerobic versus anaerobic is not the same for every runner. In one 800m run, by instance, one FT runner type might use more anaerobic percent than another ST runner, while both run at their best. Consequently the percent uis useless somehow.
- second reason is that trough the run distance each runner we doesn´t use the theh same aerobic anaerobic equilibrium. For instance the same runner at a run at mean pace from the start till the finish, might run the first 400m of a quite aerobic and from 400m to 600m half aerobic anaerobic, and in the last 200m when he reached the VO2max and exceeds, he goes anaerobic quite totally. Something similar happens every middle to long distance event. This means that the theory of the 800m anaerobic percent means no great thing as training model.
- Third and finally, all it depends how fast or slow someone starts and how finish. The 800m runner that in theory his 800m race pace pb is 1:50 (55secs per 400m lap/quarter) it´s a different story if he just wants to win the race it doesn´t matter how slow he splits at 400m or 600m or the same 1:50 runner that leads a pack with 400m split in 52secs for instance.
This are totally different aerobic anaerobic percent, and the theory of 80% 20% or 60% 40% means not too much at the moment that you need to move fast or that you are tired after a fast start.
Another thing you might take for granted. The 800m runner got not major benefit training at LT paces. By the contrary, the 800m that training at LT paces might lost his time and be a poor performer by doing that kind fo training.
The main key to a good 800m performance (relte the runner talent of course) is to be able to exceed the VO2max, and keep an fast pace, and this is not aquired by aerobic training, to think that because someone did discover that the 800m got more aerobic percent that the classic books say, and that be that fact we might insist to run more aerobic volume training is a stupidity.
Aerobic training is just the fondamental training as basic trainig at it´s all, aerobic training in a 800m runner doesn´t bring specificity.